The India AI Impact Summit 2026, the first global AI summit hosted in the Global South, was held at which venue?
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Correct answer: (B) Bharat Mandapam, New Delhi
Full Mock Test · Questions with answers
DSSSB TGT Computer Science Full Mock Test 1
All 200 questions of DSSSB TGT Computer Science Full Mock Test 1 with the correct answer and a solution. Read them free on UTpaper, or attempt the paper as a timed online test.
- 200 questions
- 160 explained
- Free
General Awareness 20 questions
India's first hydrogen-powered train (indigenous hydrogen fuel-cell trainset) was launched in July 2026 on which railway section?
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Correct answer: (C) Jind – Sonipat
Under the Viksit Bharat – Guarantee for Rozgar and Ajeevika Mission (Gramin) [VB-G RAM G] Act, which replaced MGNREGA from 1 July 2026, how many days of wage employment are guaranteed annually to an eligible rural household?
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Correct answer: (A) 125 days
Which State ranked first among the large States in NITI Aayog's Investment Friendliness Index (IFI) 2026?
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Correct answer: (B) Gujarat
According to the Ministry of Defence, what was India's record defence export figure for FY 2025–26?
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Correct answer: (B) ₹38,424 crore
The 52nd G7 Summit was held in June 2026 at Évian-les-Bains in which country?
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Correct answer: (A) France
Which country ranked first in the World Happiness Report 2026?
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Correct answer: (D) Finland
In January 2026, India concluded Free Trade Agreement (FTA) negotiations, described as a landmark deal, with which grouping at a summit in New Delhi?
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Correct answer: (D) European Union
The multilateral military exercise PRAGATI 2026 was conducted by the Indian Army at which military station?
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Correct answer: (C) Umroi, Meghalaya
As per the Union Budget 2026–27, the fiscal deficit for 2026–27 (Budget Estimates) has been fixed at:
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Correct answer: (C) 4.3% of GDP
In February 2026, MoSPI released a new series of GDP estimates. Which year was adopted as the new base year?
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Correct answer: (A) 2022–23
The Income-tax Act, 2025, which replaced the Income Tax Act, 1961, came into effect from:
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Correct answer: (A) 1 April 2026
Which two countries jointly hosted the ICC Men's T20 World Cup 2026?
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Correct answer: (B) India and Sri Lanka
The 2026 Commonwealth Games (23 July – 2 August 2026) were held in which city?
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Correct answer: (D) Glasgow
Which sport made its Olympic debut at the Milano Cortina 2026 Winter Olympics?
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Correct answer: (C) Ski mountaineering
Which wetland was designated as India's 100th Ramsar site on World Environment Day, 5 June 2026?
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Correct answer: (D) Jai Prakash Narayan Bird Sanctuary
The BBNJ Agreement (High Seas Treaty), which entered into force on 17 January 2026, primarily deals with:
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Correct answer: (B) Marine biodiversity beyond national jurisdiction
National Statistics Day, observed on 29 June every year, marks the birth anniversary of:
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Correct answer: (A) P. C. Mahalanobis
What was the theme of the International Day of Yoga 2026?
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Correct answer: (C) Yoga for Healthy Ageing
In July 2026, the Supreme Court held that a judgment based on AI-generated fake (hallucinated) precedents will be treated as:
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Correct answer: (D) No judgment in the eyes of law
General Intelligence & Reasoning Ability 20 questions
Find the missing number: 7, 12, 19, 28, 39, ?
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Correct answer: (C) 52
Explanation
Differences are 5, 7, 9, 11, 13 → 39 + 13 = 52.
Find the next term: AZ, CX, EV, GT, ?
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Correct answer: (A) IR
Explanation
First letter +2 (A,C,E,G,I); second letter −2 (Z,X,V,T,R) → IR.
In a certain code language, DELHI is written as EFMIJ. How is MUMBAI written in that code?
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Correct answer: (A) NVNCBJ
Explanation
Each letter is moved +1: M→N, U→V, M→N, B→C, A→B, I→J → NVNCBJ.
If BOOK is coded as 43, then how is PEN coded?
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Correct answer: (C) 35
Explanation
Sum of letter positions: B(2)+O(15)+O(15)+K(11)=43. PEN = 16+5+14 = 35.
Find the odd one out: 17, 23, 29, 33
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Correct answer: (B) 33
Explanation
17, 23, 29 are prime numbers; 33 = 3 × 11 is not prime.
Find the odd one out: Copper, Iron, Brass, Zinc
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Correct answer: (A) Brass
Explanation
Copper, Iron and Zinc are pure metals (elements); Brass is an alloy of copper and zinc.
Doctor : Hospital :: Teacher : ?
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Correct answer: (B) School
Explanation
A doctor works in a hospital; a teacher works in a school (workplace relation).
6 : 42 :: 8 : ?
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Correct answer: (C) 72
Explanation
n : n × (n+1) → 6 × 7 = 42, so 8 × 9 = 72.
ACE : BDF :: GIK : ?
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Correct answer: (B) HJL
Explanation
Each letter moved +1: G→H, I→J, K→L → HJL.
If '+' means '×', '−' means '÷', '×' means '+' and '÷' means '−', then the value of 8 + 4 − 2 × 6 ÷ 3 is:
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Correct answer: (C) 19
Explanation
8 × 4 ÷ 2 + 6 − 3 = 16 + 6 − 3 = 19.
If 3 * 4 = 25 and 5 * 6 = 61, then 2 * 7 = ?
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Correct answer: (D) 53
Explanation
a * b = a² + b² → 9+16=25, 25+36=61, so 4 + 49 = 53.
In a row of 40 students, Ravi is 15th from the left end. What is his position from the right end?
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Correct answer: (B) 26
Explanation
Position from right = 40 − 15 + 1 = 26.
In a class, Amit ranks 12th from the top and 29th from the bottom. How many students are there in the class?
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Correct answer: (C) 40
Explanation
Total = 12 + 29 − 1 = 40.
Pointing to a photograph, a man said, "She is the daughter of the only son of my grandfather." How is the woman in the photograph related to the man?
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Correct answer: (C) Sister
Explanation
Only son of my grandfather = my father. Daughter of my father = my sister.
A man walks 5 km towards North, then turns right and walks 3 km, then turns right again and walks 5 km. How far and in which direction is he from the starting point?
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Correct answer: (D) 3 km, East
Explanation
North 5, then East 3, then South 5 → net displacement 3 km East.
A, B, C, D and E have different weights. A is heavier than B but lighter than C. D is lighter than B. E is the heaviest. Who is the third heaviest?
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Correct answer: (C) A
Explanation
Order: E > C > A > B > D. Third heaviest = A.
Six persons A, B, C, D, E and F are sitting around a circular table facing the centre. A sits opposite D.
B sits immediately to the right of A. E sits immediately to the left of D. C is not a neighbour of D. Who sits opposite B?
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Correct answer: (C) F
Explanation
With A opposite D, B next to A and E next to D on the same side, C (not adjacent to D) takes the seat beside A, leaving F beside D on the other side — F is opposite B.
Statement: Should plastic bags be completely banned?
Arguments: I. Yes, plastic bags are non-biodegradable and harm the environment.
II. No, plastic bags are available in many attractive colours.
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Correct answer: (D) Only argument I is strong
Explanation
Argument I gives a serious, relevant reason. Argument II (colours) is trivial and irrelevant → only I is strong.
Statements: All pens are books. Some books are tables.
Conclusions: I. Some pens are tables. II. Some tables are books.
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Correct answer: (D) Only II follows
Explanation
'Some books are tables' can be reversed → 'Some tables are books' (II follows). Pens may or may not be tables → I does not follow.
Which of the following Venn diagrams best represents the relationship among: Fruits, Mango, Apple?
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Correct answer: (A) Two separate small circles inside one big circle
Explanation
(A) Two separate circles inside a big circle. Mango and Apple are two different fruits → two separate small circles inside the big circle 'Fruits'.
Arithmetical & Numerical Ability 20 questions
What value will come in place of the question mark (?): 3/4 of 48 ÷ 6 + 15 × 2 − 8 = ?
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Correct answer: (B) 28
What is the unit digit of 7⁹⁵ × 3⁵⁸?
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Correct answer: (C) 7
Find the least number which when divided by 12, 15, 20 and 54 leaves a remainder of 8 in each case.
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Correct answer: (A) 548
In an election between two candidates, 10% of the voters did not cast their vote and 90 votes were declared invalid. The winner got 54% of the valid votes and won by 1620 votes.
Find the total number of voters.
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Correct answer: (B) 22600
If the price of sugar increases by 25%, by how much percent must a family reduce its consumption so that the expenditure remains the same?
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Correct answer: (B) 20%
A shopkeeper marks his goods 40% above the cost price and allows a discount of 15%. His profit percent is:
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Correct answer: (A) 19%
By selling an article for ₹ 720, a man loses 10%. At what price should he sell it to gain 15%?
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Correct answer: (D) ₹ 920
A dishonest dealer professes to sell his goods at cost price but uses a weight of 900 g instead of 1 kg. His gain percent is:
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Correct answer: (D) 11 1/9 %
A train 240 m long passes a pole in 12 seconds. How long will it take to cross a platform 360 m long?
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Correct answer: (C) 30 s
A person goes from A to B at 40 km/h and returns from B to A at 60 km/h. His average speed for the whole journey is:
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Correct answer: (C) 48 km/h
Two numbers are in the ratio 3 : 5. If 9 is subtracted from each, the new ratio becomes 12 :
23. The smaller number is:
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Correct answer: (A) 33
The average of 11 results is 50. If the average of the first six results is 49 and that of the last six is 52, the sixth result is:
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Correct answer: (A) 56
A sum of money becomes 7/4 of itself in 6 years at simple interest. The rate of interest per annum is:
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Correct answer: (B) 12.5%
The difference between compound interest and simple interest on ₹ 8000 for 2 years at 5% per annum is:
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Correct answer: (D) ₹ 20
A can do a piece of work in 15 days and B in 20 days. They work together for 4 days and then A leaves. In how many days will B finish the remaining work?
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Correct answer: (C) 10 2/3 days
Pipes A and B can fill a tank in 12 hours and 15 hours respectively, while pipe C can empty the full tank in 20 hours. If all three pipes are opened together, the tank will be filled in:
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Correct answer: (D) 10 hours
The radius of a closed cylinder is 7 cm and its height is 10 cm. Its total surface area is (take π = 22/7):
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Correct answer: (B) 748 cm²
A and B start a business with ₹ 24,000 and ₹ 36,000 respectively. After 4 months, A invests ₹ 12,000 more. If the profit at the end of the year is ₹ 34,000, A's share is:
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Correct answer: (A) ₹ 16,000
Directions: Study the following data carefully and answer the question.
Sales of books by a publisher (in thousands):
2019: 45, 2020: 60, 2021: 75, 2022: 50, 2023: 70
What is the average annual sale of books over the five years?
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Correct answer: (C) 60 thousand
Directions: Study the following data carefully and answer the question.
Sales of books by a publisher (in thousands):
2019: 45, 2020: 60, 2021: 75, 2022: 50, 2023: 70
What is the percentage increase in the sale of books from 2022 to 2023?
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Correct answer: (D) 40%
Hindi Language & Comprehension 20 questions
'घड़ों पानी पड़ना' मुहावरे का अर्थ है —
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Correct answer: (D) अत्यंत लज्जित होना
Explanation
घड़ों पानी पड़ना = अत्यंत लज्जित होना। TGT 2021 में दो बार पूछा गया।
'ऊँची दुकान फीका पकवान' लोकोक्ति का अर्थ है —
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Correct answer: (C) बाहरी दिखावा अधिक, गुण कम
Explanation
केवल बाहरी आडंबर, भीतर गुण नहीं।
'जो ईश्वर में विश्वास रखता हो' — वाक्यांश के लिए एक शब्द
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Correct answer: (B) आस्तिक
Explanation
ईश्वर में विश्वास रखने वाला = आस्तिक; न रखने वाला = नास्तिक।
'जल' का पर्यायवाची नहीं है —
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Correct answer: (A) दधि
Explanation
दधि = दही। वारि, तोय, अम्बु — जल के पर्यायवाची।
'अनुराग' का विलोम शब्द है —
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Correct answer: (C) विराग
Explanation
अनुराग (प्रेम) ↔ विराग (वैराग्य)।
'हस्त' का तद्भव रूप है —
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Correct answer: (C) हाथ
Explanation
हस्त (तत्सम) → हाथ (तद्भव)। TGT 2025 में पूछा गया।
'इत्यादि' का सही संधि-विच्छेद है —
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Correct answer: (D) इति + आदि
Explanation
इति + आदि = इत्यादि (यण संधि: इ → य)। TGT में 3 बार पूछा गया।
'गिरहकट' में समास है —
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Correct answer: (D) तत्पुरुष
Explanation
गिरह को काटने वाला — कर्म तत्पुरुष।
'राम ने कलम ___ पत्र लिखा।' — रिक्त स्थान में उचित परसर्ग
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Correct answer: (B) से
Explanation
साधन (कलम) के साथ 'से' — करण कारक।
शुद्ध वर्तनी वाला शब्द है —
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Correct answer: (B) रचयिता
Explanation
शुद्ध रूप 'रचयिता' है। TGT 2021 में दो बार पूछा गया।
'हमारे घर में प्रत्येक सदस्यों को सुबह जल्दी उठना पड़ता है।' — वाक्य के किस भाग में त्रुटि है?
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Correct answer: (A) प्रत्येक सदस्यों को
Explanation
'प्रत्येक' के साथ एकवचन आता है — 'प्रत्येक सदस्य को'।
वाक्यांशों का सही क्रम चुनिए — (P) संसार को (Q) महात्मा गांधी ने (R) सत्य और अहिंसा का (S) मार्ग दिखाया
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Correct answer: (C) QPRS
Explanation
महात्मा गांधी ने संसार को सत्य और अहिंसा का मार्ग दिखाया।
'पीपर पात सरिस मन डोला' में अलंकार है —
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Correct answer: (D) उपमा
Explanation
वाचक शब्द 'सरिस' (समान) — उपमा। TGT 2023 में पूछा गया।
'बुढ़ापा' कौन-सी संज्ञा है?
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Correct answer: (B) भाववाचक
Explanation
अवस्था का बोध कराने वाली संज्ञा — भाववाचक (बूढ़ा + आपा)।
'प्रदूषण की समस्या आज पूरे विश्व के सामने ___ रूप ले चुकी है।'
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Correct answer: (D) विकराल
Explanation
समस्या के भयानक रूप के लिए 'विकराल'। TGT 2021 में पूछा गया।
निर्देश: निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर प्रश्न का उत्तर दीजिए।
जल ही जीवन है — यह कथन जितना पुराना है, उतना ही सत्य भी। पृथ्वी का लगभग तीन-चौथाई भाग जल से ढका है, किंतु इसमें से पीने योग्य मीठा जल बहुत थोड़ा है। बढ़ती जनसंख्या, अनियंत्रित शहरीकरण और उद्योगों के कारण भूजल का स्तर निरंतर नीचे जा रहा है। अनेक नगरों में गर्मियों के आते ही पानी के लिए लंबी कतारें लग जाती हैं। हमारे पूर्वज कुएँ, बावड़ियाँ और तालाब बनाकर वर्षा-जल को सहेजते थे; आज हम उस परंपरा को भूलते जा रहे हैं। यदि हर घर की छत से बहने वाले वर्षा-जल को एकत्र कर भूमि में उतारा जाए, तो भूजल फिर से भर सकता है। जल संरक्षण केवल सरकार का दायित्व नहीं है; यह प्रत्येक नागरिक का कर्तव्य है। नल खुला न छोड़ना, टपकती टोंटियों की मरम्मत कराना और पानी का दोबारा उपयोग करना — ये छोटे-छोटे उपाय मिलकर बड़ा परिवर्तन ला सकते हैं।
गद्यांश के लिए सबसे उपयुक्त शीर्षक है —
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Correct answer: (A) जल संरक्षण : हमारा दायित्व
Explanation
गद्यांश का मुख्य विषय जल संरक्षण और नागरिकों का कर्तव्य है।
निर्देश: निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर प्रश्न का उत्तर दीजिए।
जल ही जीवन है — यह कथन जितना पुराना है, उतना ही सत्य भी। पृथ्वी का लगभग तीन-चौथाई भाग जल से ढका है, किंतु इसमें से पीने योग्य मीठा जल बहुत थोड़ा है। बढ़ती जनसंख्या, अनियंत्रित शहरीकरण और उद्योगों के कारण भूजल का स्तर निरंतर नीचे जा रहा है। अनेक नगरों में गर्मियों के आते ही पानी के लिए लंबी कतारें लग जाती हैं। हमारे पूर्वज कुएँ, बावड़ियाँ और तालाब बनाकर वर्षा-जल को सहेजते थे; आज हम उस परंपरा को भूलते जा रहे हैं। यदि हर घर की छत से बहने वाले वर्षा-जल को एकत्र कर भूमि में उतारा जाए, तो भूजल फिर से भर सकता है। जल संरक्षण केवल सरकार का दायित्व नहीं है; यह प्रत्येक नागरिक का कर्तव्य है। नल खुला न छोड़ना, टपकती टोंटियों की मरम्मत कराना और पानी का दोबारा उपयोग करना — ये छोटे-छोटे उपाय मिलकर बड़ा परिवर्तन ला सकते हैं।
गद्यांश के अनुसार भूजल-स्तर गिरने का कारण नहीं बताया गया है —
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Correct answer: (C) वनों की कटाई
Explanation
गद्यांश में केवल जनसंख्या, शहरीकरण और उद्योगों का उल्लेख है; वनों की कटाई का नहीं।
निर्देश: निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर प्रश्न का उत्तर दीजिए।
जल ही जीवन है — यह कथन जितना पुराना है, उतना ही सत्य भी। पृथ्वी का लगभग तीन-चौथाई भाग जल से ढका है, किंतु इसमें से पीने योग्य मीठा जल बहुत थोड़ा है। बढ़ती जनसंख्या, अनियंत्रित शहरीकरण और उद्योगों के कारण भूजल का स्तर निरंतर नीचे जा रहा है। अनेक नगरों में गर्मियों के आते ही पानी के लिए लंबी कतारें लग जाती हैं। हमारे पूर्वज कुएँ, बावड़ियाँ और तालाब बनाकर वर्षा-जल को सहेजते थे; आज हम उस परंपरा को भूलते जा रहे हैं। यदि हर घर की छत से बहने वाले वर्षा-जल को एकत्र कर भूमि में उतारा जाए, तो भूजल फिर से भर सकता है। जल संरक्षण केवल सरकार का दायित्व नहीं है; यह प्रत्येक नागरिक का कर्तव्य है। नल खुला न छोड़ना, टपकती टोंटियों की मरम्मत कराना और पानी का दोबारा उपयोग करना — ये छोटे-छोटे उपाय मिलकर बड़ा परिवर्तन ला सकते हैं।
'निरंतर' शब्द का पर्यायवाची है —
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Correct answer: (A) लगातार
Explanation
निरंतर = बिना रुके, लगातार।
निर्देश: निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर प्रश्न का उत्तर दीजिए।
जल ही जीवन है — यह कथन जितना पुराना है, उतना ही सत्य भी। पृथ्वी का लगभग तीन-चौथाई भाग जल से ढका है, किंतु इसमें से पीने योग्य मीठा जल बहुत थोड़ा है। बढ़ती जनसंख्या, अनियंत्रित शहरीकरण और उद्योगों के कारण भूजल का स्तर निरंतर नीचे जा रहा है। अनेक नगरों में गर्मियों के आते ही पानी के लिए लंबी कतारें लग जाती हैं। हमारे पूर्वज कुएँ, बावड़ियाँ और तालाब बनाकर वर्षा-जल को सहेजते थे; आज हम उस परंपरा को भूलते जा रहे हैं। यदि हर घर की छत से बहने वाले वर्षा-जल को एकत्र कर भूमि में उतारा जाए, तो भूजल फिर से भर सकता है। जल संरक्षण केवल सरकार का दायित्व नहीं है; यह प्रत्येक नागरिक का कर्तव्य है। नल खुला न छोड़ना, टपकती टोंटियों की मरम्मत कराना और पानी का दोबारा उपयोग करना — ये छोटे-छोटे उपाय मिलकर बड़ा परिवर्तन ला सकते हैं।
'कर्तव्य' शब्द का विलोम है —
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Correct answer: (D) अधिकार
Explanation
कर्तव्य ↔ अधिकार। दायित्व और फ़र्ज़ इसके पर्यायवाची हैं।
निर्देश: निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर प्रश्न का उत्तर दीजिए।
जल ही जीवन है — यह कथन जितना पुराना है, उतना ही सत्य भी। पृथ्वी का लगभग तीन-चौथाई भाग जल से ढका है, किंतु इसमें से पीने योग्य मीठा जल बहुत थोड़ा है। बढ़ती जनसंख्या, अनियंत्रित शहरीकरण और उद्योगों के कारण भूजल का स्तर निरंतर नीचे जा रहा है। अनेक नगरों में गर्मियों के आते ही पानी के लिए लंबी कतारें लग जाती हैं। हमारे पूर्वज कुएँ, बावड़ियाँ और तालाब बनाकर वर्षा-जल को सहेजते थे; आज हम उस परंपरा को भूलते जा रहे हैं। यदि हर घर की छत से बहने वाले वर्षा-जल को एकत्र कर भूमि में उतारा जाए, तो भूजल फिर से भर सकता है। जल संरक्षण केवल सरकार का दायित्व नहीं है; यह प्रत्येक नागरिक का कर्तव्य है। नल खुला न छोड़ना, टपकती टोंटियों की मरम्मत कराना और पानी का दोबारा उपयोग करना — ये छोटे-छोटे उपाय मिलकर बड़ा परिवर्तन ला सकते हैं।
गद्यांश के अनुसार असत्य कथन है —
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Correct answer: (C) पीने योग्य मीठा जल प्रचुर मात्रा में है।
Explanation
गद्यांश के अनुसार पीने योग्य मीठा जल 'बहुत थोड़ा' है।
English Language & Comprehension 20 questions
Neither the teacher nor the students ______ aware of the change in the timetable.
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Correct answer: (C) were
Explanation
Neither…nor mein verb paas wale subject (students, plural) ke hisaab se lagta hai → were.
She is ______ honest woman.
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Correct answer: (A) an
Explanation
'Honest' mein h silent hai, awaaz vowel (o) se shuru hoti hai → an.
You will submit the form today, ______?
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Correct answer: (D) won't you
Explanation
Positive statement (will) → negative tag: won't you. PGT 2024 mein question tags ke kai sawaal aaye.
______ the heavy rain, the match continued.
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Correct answer: (D) In spite of
Explanation
'the heavy rain' noun phrase hai. Noun ke saath 'In spite of'; Even though/Although ke baad poora clause aata hai.
He has been working in this company ______ 2019.
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Correct answer: (B) since
Explanation
Point of time (2019) ke saath present perfect continuous mein 'since'. Period (5 years) ke saath 'for'.
Select the meaning of the idiom: To break the ice
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Correct answer: (C) To overcome initial shyness or reserve
Explanation
Break the ice = jhijhak todna. Ye idiom PYQs mein 3 baar aa chuka hai.
Select the meaning of the idiom: A blessing in disguise
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Correct answer: (B) Something good that is not recognised at first
Explanation
Nuksaan jaisa dikhne wala faayda. PYQs mein 3 baar aaya hai.
Rearrange P, Q, R, S to form a meaningful paragraph after the given first sentence.
The Himalayas are often called the water tower of Asia.
P: These rivers support the lives of nearly two billion people.
Q: As the climate warms, the glaciers are melting faster than ever.
R: Their glaciers feed some of the largest rivers on the continent.
S: This threatens the long-term water security of the entire region.
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Correct answer: (A) RPQS
Explanation
R (glaciers rivers ko paani dete hain) → P (ye rivers 2 arab logon ko) → Q (glaciers pighal rahe hain) → S (isse paani ka khatra). 'These rivers' batata hai ki P, R ke baad aayega.
Rearrange P, Q, R, S to form a meaningful paragraph.
P: Once he reached the station, he realised he had left his ticket at home.
Q: Ravi woke up late on the day of his interview.
R: He rushed out of the house without checking his bag.
S: Luckily, he was able to show the e-ticket on his phone.
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Correct answer: (A) QRPS
Explanation
Kahani ka time order: late utha (Q) → jaldi mein nikla (R) → station pe ticket yaad aaya (P) → e-ticket dikhaya (S).
Select the correctly spelt word.
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Correct answer: (C) Consensus
Explanation
con-SEN-sus. PYQs mein 3 baar aaya hai.
One who hates mankind
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Correct answer: (C) Misanthrope
Explanation
mis = nafrat, anthrop = insaan. Philanthropist ulta hai, Misogynist = auraton se nafrat.
Select the synonym of: UNTENABLE
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Correct answer: (C) Illogical
Explanation
Untenable = jiska bachav na ho sake. PYQs mein 2 baar 'Illogical' answer aaya hai.
Select the antonym of: EPHEMERAL
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Correct answer: (D) Enduring
Explanation
Ephemeral = kshanik. Baaki teen options iske synonym hain, isliye odd-one-out Enduring.
Improve the bracketed part: No sooner [had he left the room when] the phone rang.
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Correct answer: (A) had he left the room than
Explanation
Fixed pair: No sooner had… than.
Find the part with an error: One of my friends (A) / have gone to Delhi (B) / for higher studies. (C) / No error (D)
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Correct answer: (B) have gone to Delhi (B)
Explanation
'One of + plural noun' ke saath singular verb → has gone.
Read the passage carefully and answer the question that follows.
Smartphones in Village Classrooms
In many Indian villages, the arrival of affordable smartphones has quietly changed the way children learn. A decade ago, a student who missed a lesson had little chance of catching up; today, recorded lectures and educational apps allow her to revisit a topic as many times as she needs. Teachers, too, have begun to use short videos to explain difficult ideas, making abstract concepts in science and mathematics easier to grasp. However, the change is not without problems. Poor internet connectivity, the high cost of data and the lack of devices in poorer households mean that many children are still left behind. Experts also warn that screens cannot replace the guidance of a good teacher, who notices when a child is confused and adjusts the lesson accordingly. The real promise of technology, they argue, lies not in replacing classrooms but in strengthening them. If governments invest in reliable connectivity and train teachers to use digital tools wisely, the gap between rural and urban education could narrow significantly in the coming years.
What is the central idea of the passage?
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Correct answer: (C) Technology can strengthen rural education if it is used wisely
Explanation
Passage ka aakhri hissa kehta hai ki technology classrooms ko replace nahi, strengthen karti hai. Yahi central idea hai.
Read the passage carefully and answer the question that follows.
Smartphones in Village Classrooms
In many Indian villages, the arrival of affordable smartphones has quietly changed the way children learn. A decade ago, a student who missed a lesson had little chance of catching up; today, recorded lectures and educational apps allow her to revisit a topic as many times as she needs. Teachers, too, have begun to use short videos to explain difficult ideas, making abstract concepts in science and mathematics easier to grasp. However, the change is not without problems. Poor internet connectivity, the high cost of data and the lack of devices in poorer households mean that many children are still left behind. Experts also warn that screens cannot replace the guidance of a good teacher, who notices when a child is confused and adjusts the lesson accordingly. The real promise of technology, they argue, lies not in replacing classrooms but in strengthening them. If governments invest in reliable connectivity and train teachers to use digital tools wisely, the gap between rural and urban education could narrow significantly in the coming years.
Which of the following is NOT mentioned as a problem in the passage?
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Correct answer: (B) Shortage of textbooks
Explanation
Teen problems passage mein likhi hain: connectivity, data cost, devices. Textbooks ka zikr nahi hai.
Read the passage carefully and answer the question that follows.
Smartphones in Village Classrooms
In many Indian villages, the arrival of affordable smartphones has quietly changed the way children learn. A decade ago, a student who missed a lesson had little chance of catching up; today, recorded lectures and educational apps allow her to revisit a topic as many times as she needs. Teachers, too, have begun to use short videos to explain difficult ideas, making abstract concepts in science and mathematics easier to grasp. However, the change is not without problems. Poor internet connectivity, the high cost of data and the lack of devices in poorer households mean that many children are still left behind. Experts also warn that screens cannot replace the guidance of a good teacher, who notices when a child is confused and adjusts the lesson accordingly. The real promise of technology, they argue, lies not in replacing classrooms but in strengthening them. If governments invest in reliable connectivity and train teachers to use digital tools wisely, the gap between rural and urban education could narrow significantly in the coming years.
The word 'grasp' as used in the passage means:
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Correct answer: (A) understand
Explanation
'Easier to grasp' = samajhne mein aasaan. Yahan grasp ka matlab understand hai, pakadna nahi.
Read the passage carefully and answer the question that follows.
Smartphones in Village Classrooms
In many Indian villages, the arrival of affordable smartphones has quietly changed the way children learn. A decade ago, a student who missed a lesson had little chance of catching up; today, recorded lectures and educational apps allow her to revisit a topic as many times as she needs. Teachers, too, have begun to use short videos to explain difficult ideas, making abstract concepts in science and mathematics easier to grasp. However, the change is not without problems. Poor internet connectivity, the high cost of data and the lack of devices in poorer households mean that many children are still left behind. Experts also warn that screens cannot replace the guidance of a good teacher, who notices when a child is confused and adjusts the lesson accordingly. The real promise of technology, they argue, lies not in replacing classrooms but in strengthening them. If governments invest in reliable connectivity and train teachers to use digital tools wisely, the gap between rural and urban education could narrow significantly in the coming years.
Choose the word most OPPOSITE in meaning to 'narrow' as used in the passage.
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Correct answer: (D) widen
Explanation
'The gap could narrow' = fark kam hoga. Ulta = widen (badhna).
Read the passage carefully and answer the question that follows.
Smartphones in Village Classrooms
In many Indian villages, the arrival of affordable smartphones has quietly changed the way children learn. A decade ago, a student who missed a lesson had little chance of catching up; today, recorded lectures and educational apps allow her to revisit a topic as many times as she needs. Teachers, too, have begun to use short videos to explain difficult ideas, making abstract concepts in science and mathematics easier to grasp. However, the change is not without problems. Poor internet connectivity, the high cost of data and the lack of devices in poorer households mean that many children are still left behind. Experts also warn that screens cannot replace the guidance of a good teacher, who notices when a child is confused and adjusts the lesson accordingly. The real promise of technology, they argue, lies not in replacing classrooms but in strengthening them. If governments invest in reliable connectivity and train teachers to use digital tools wisely, the gap between rural and urban education could narrow significantly in the coming years.
According to the passage, what can a good teacher do that a screen cannot?
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Correct answer: (D) Notice when a child is confused and adjust the lesson
Explanation
Passage mein seedha likha hai: teacher notices when a child is confused and adjusts the lesson.
Computer Science 90 questions
What is the 2's complement of the 8-bit binary number 01011000?
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Correct answer: (C) 10101000
Explanation
Invert (10100111) and add 1 = 10101000.
(3A7)₁₆ is equal to which octal number?
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Correct answer: (B) (1647)₈
Explanation
3A7 = 0011 1010 0111; regroup in 3s: 001 110 100 111 = 1647.
A memory unit is of size 256K × 16. How many address lines and data lines does it need?
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Correct answer: (A) 18 address lines, 16 data lines
Explanation
256K = 2^18, so 18 address lines; word size 16 bits, so 16 data lines.
Cache hit ratio is 0.95, cache access time 5 ns and main memory access time 100 ns.
Using hierarchical (look-through) access, the average access time is:
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Correct answer: (D) 10 ns
Explanation
0.95 × 5 + 0.05 × (5 + 100) = 4.75 + 5.25 = 10 ns.
Which register holds the address of the next instruction to be executed?
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Correct answer: (D) Program Counter
Explanation
PC holds the address of the next instruction; IR holds the current one.
Which type of ROM is erased by exposing it to ultraviolet light?
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Correct answer: (C) EPROM
Explanation
EPROM is erased by UV light (all bits become 1); EEPROM is erased electrically.
The Gray code of binary 1101 is:
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Correct answer: (A) 1011
Explanation
MSB stays 1; then XOR adjacent bits: 1^1=0, 1^0=1, 0^1=1 → 1011.
In a 5-stage pipeline with no hazards, how many clock cycles are needed to execute 20 instructions?
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Correct answer: (D) 24
Explanation
k + (n − 1) = 5 + 19 = 24 cycles.
Which of the following is a non-volatile memory?
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Correct answer: (D) Flash memory
Explanation
Flash retains data without power; SRAM, DRAM and cache are volatile.
The minimum number of 2-input NAND gates required to implement an XOR gate is:
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Correct answer: (B) 4
Explanation
XOR needs 4 NAND gates (5 NOR gates).
The Boolean expression A + A'B simplifies to:
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Correct answer: (C) A + B
Explanation
Redundancy law: A + A'B = A + B.
How many select lines does a 16 : 1 multiplexer have?
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Correct answer: (B) 4
Explanation
2^m = 16 → m = 4.
In a JK flip-flop, when J = 1 and K = 1 and a clock pulse is applied, the output:
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Correct answer: (A) Toggles
Explanation
J = K = 1 is the toggle condition.
The minimum number of flip-flops needed to build a MOD-12 counter is:
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Correct answer: (A) 4
Explanation
2^3 = 8 < 12 ≤ 16 = 2^4, so 4 flip-flops.
F(A, B, C) = Σm(0, 1, 2, 3) simplifies to:
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Correct answer: (C) A'
Explanation
Minterms 0–3 all have A = 0, so F = A'.
Using FIFO page replacement with 3 frames (initially empty), how many page faults occur for the reference string 1, 2, 3, 4, 1, 2, 5, 1, 2, 3, 4, 5?
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Correct answer: (C) 9
Explanation
FIFO with 3 frames gives 9 faults (with 4 frames it gives 10 – Belady's anomaly).
Four processes arrive at time 0 with burst times P1 = 6, P2 = 8, P3 = 7, P4 = 3. What is the average waiting time under non-preemptive SJF?
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Correct answer: (C) 7
Explanation
Order P4, P1, P3, P2 → waits 0, 3, 9, 16 → 28/4 = 7.
Which of the following is NOT one of the necessary conditions for deadlock?
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Correct answer: (D) Preemption
Explanation
The condition is 'No preemption'; preemption itself prevents deadlock.
Belady's anomaly is observed in which page replacement algorithm?
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Correct answer: (B) FIFO
Explanation
Only FIFO can show more faults with more frames.
How many times will "Hi" be printed by the following program?
fork();
fork();
fork();
printf("Hi\n");
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Correct answer: (C) 8
Explanation
n fork() calls create 2^n processes; 2^3 = 8.
Thrashing in an operating system occurs when:
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Correct answer: (A) Processes spend more time paging than executing
Explanation
Very high page-fault activity keeps the system busy swapping pages.
Which scheduler controls the degree of multiprogramming?
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Correct answer: (B) Long-term scheduler
Explanation
The long-term (job) scheduler decides how many processes enter memory.
A system uses 32-bit logical addresses and a page size of 4 KB. How many pages can the logical address space have?
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Correct answer: (B) 2^20
Explanation
2^32 / 2^12 = 2^20 pages.
In a flowchart, the diamond-shaped symbol represents:
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Correct answer: (A) Decision
Explanation
Diamond = decision; rectangle = process; parallelogram = I/O; oval = terminal.
Which translator converts the entire high-level program into machine code at once before execution?
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Correct answer: (B) Compiler
Explanation
A compiler translates the whole program; an interpreter works line by line.
The property of an algorithm that it must terminate after a finite number of steps is called:
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Correct answer: (A) Finiteness
Explanation
Finiteness = must stop after finite steps.
What is the output?
int a = 5, b;
b = a++ * 2;
printf("%d %d", a, b);
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Correct answer: (B) 6 10
Explanation
a++ uses 5 then increments: b = 10, a = 6.
What is the output?
int i;
for (i = 0; i < 10; i += 3);
printf("%d", i);
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Correct answer: (D) 12
Explanation
The semicolon ends the loop; i goes 0, 3, 6, 9, 12 and the loop exits at 12.
What is the output?
int n = 2;
switch (n) {
case 1: printf("A");
case 2: printf("B");
case 3: printf("C"); break;
default: printf("D");
}
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Correct answer: (D) BC
Explanation
Execution starts at case 2 and falls through to case 3 until break.
What is the output?
char s[] = "DSSSB";
printf("%d", (int)sizeof(s));
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Correct answer: (A) 6
Explanation
5 characters + 1 null terminator = 6 bytes.
What is the output?
int a[] = {10, 20, 30, 40};
int *p = a;
p += 2;
printf("%d", *p);
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Correct answer: (A) 30
Explanation
p moves two elements ahead to a[2] = 30.
What is the output?
int f(int n) {
if (n <= 1) return 1;
return n * f(n - 1);
}
printf("%d", f(5));
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Correct answer: (B) 120
Explanation
f computes factorial: 5! = 120.
In Java, which keyword is used by a class to inherit another class?
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Correct answer: (D) extends
Explanation
A class extends a class and implements an interface.
Method overloading in Java is an example of:
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Correct answer: (B) Compile-time polymorphism
Explanation
Overloading is resolved at compile time; overriding at run time.
In C++, what is the default access specifier for members of a class?
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Correct answer: (A) private
Explanation
class members are private by default; struct members are public.
What is the output of the Java code?
String s1 = "abc";
String s2 = new String("abc");
System.out.println(s1 == s2);
System.out.println(s1.equals(s2));
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Correct answer: (B) false then true
Explanation
== compares references (different objects); equals() compares content.
What is the output?
void f() {
static int c = 0;
c++;
printf("%d ", c);
}
/* f() is called three times */
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Correct answer: (D) 1 2 3
Explanation
A static local keeps its value between calls.
In Java, which of the following cannot be instantiated directly?
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Correct answer: (B) Abstract class
Explanation
Objects of an abstract class cannot be created with new.
Which statement about constructors in C++ is TRUE?
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Correct answer: (D) They have the same name as the class and no return type
Explanation
Constructors share the class name, have no return type and run automatically.
What is printed by the Java statement?
System.out.println(7 / 2 + 'A');
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Correct answer: (B) 68
Explanation
7 / 2 = 3 (int) and 'A' = 65; 3 + 65 = 68.
What is the output?
printf("%d", 5 > 3 && 2 > 4 || 1);
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Correct answer: (A) 1
Explanation
(1 && 0) || 1 = 0 || 1 = 1.
What is the output of print(len([1, [2, 3], 4]))?
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Correct answer: (C) 3
Explanation
The nested list counts as one element: 3 elements.
What is the output of print(10 // 3, 10 % 3)?
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Correct answer: (A) 3 1
Explanation
// is floor division (3) and % is remainder (1).
In pandas, what does df.shape return for a DataFrame df?
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Correct answer: (B) A tuple (rows, columns)
Explanation
shape gives (number of rows, number of columns).
The postfix form of the infix expression A + B * C − D is:
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Correct answer: (B) ABC*+D−
Explanation
B*C first, then A + (B*C), then − D: ABC*+D−.
The worst-case time complexity of binary search on n sorted elements is:
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Correct answer: (D) O(log n)
Explanation
Each step halves the search space.
The maximum number of nodes in a binary tree of height 3 (root at height 0) is:
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Correct answer: (C) 15
Explanation
2^(h+1) − 1 = 2^4 − 1 = 15.
Inorder traversal of a Binary Search Tree gives the keys in:
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Correct answer: (C) Ascending (sorted) order
Explanation
Left, root, right visits BST keys in sorted order.
Elements 1, 2, 3 are pushed onto an empty stack. Then: pop, push 4, pop, pop. What is the sequence of popped elements?
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Correct answer: (C) 3, 4, 2
Explanation
Pop 3; push 4; pop 4; pop 2.
Which sorting algorithm has a worst-case time complexity of O(n log n)?
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Correct answer: (B) Merge sort
Explanation
Merge sort is O(n log n) in all cases; quick sort is O(n^2) in the worst case.
A queue follows which principle?
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Correct answer: (C) FIFO
Explanation
First In First Out.
Space required to store a graph with V vertices as an adjacency matrix is:
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Correct answer: (A) O(V^2)
Explanation
A V × V matrix is needed.
A minimal super key is called a:
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Correct answer: (D) Candidate key
Explanation
A candidate key is a super key with no redundant attribute.
Which normal form removes partial dependency?
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Correct answer: (B) 2NF
Explanation
2NF removes partial dependency of non-key attributes on part of a key.
Which SQL command removes a table along with its structure?
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Correct answer: (B) DROP
Explanation
DROP deletes data and structure; TRUNCATE keeps the structure.
Which of the following is a DDL command?
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Correct answer: (C) ALTER
Explanation
DDL: CREATE, ALTER, DROP, TRUNCATE.
Relation R(A, B, C) has FDs A → B and B → C. The candidate key of R is:
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Correct answer: (B) A
Explanation
A+ = {A, B, C}, so A is the key.
Which SQL clause is used to filter groups formed by GROUP BY?
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Correct answer: (B) HAVING
Explanation
WHERE filters rows; HAVING filters groups.
In ACID properties, 'A' stands for:
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Correct answer: (D) Atomicity
Explanation
Atomicity: a transaction runs completely or not at all.
In an ER diagram, a weak entity set is represented by:
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Correct answer: (D) Double rectangle
Explanation
Weak entity = double rectangle; its identifying relationship = double diamond.
Routing is performed at which layer of the OSI model?
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Correct answer: (D) Network layer
Explanation
Layer 3 (network) decides paths using logical addresses.
How many usable host addresses are available in a /26 subnet?
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Correct answer: (D) 62
Explanation
2^(32−26) − 2 = 64 − 2 = 62.
HTTPS uses which default port?
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Correct answer: (A) 443
Explanation
HTTP = 80, HTTPS = 443.
Which protocol finds the MAC address corresponding to an IP address?
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Correct answer: (A) ARP
Explanation
ARP maps IP to MAC; RARP does the reverse.
The IP address 172.16.5.4 belongs to which class?
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Correct answer: (B) Class B
Explanation
First octet 128–191 is Class B.
Which transport protocol is connection-oriented and reliable?
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Correct answer: (C) TCP
Explanation
TCP uses a handshake, acknowledgements and retransmission.
A switch operates at which OSI layer?
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Correct answer: (C) Data link layer
Explanation
A switch forwards frames using MAC addresses.
Which of the following is an asymmetric-key algorithm?
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Correct answer: (D) RSA
Explanation
RSA uses a public/private key pair; the others are symmetric.
In which topology are all devices connected to a central hub or switch?
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Correct answer: (C) Star
Explanation
Star topology uses a central device.
An IPv6 address is how many bits long?
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Correct answer: (A) 128
Explanation
IPv4 = 32 bits, IPv6 = 128 bits.
DNS uses which port number?
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Correct answer: (A) 53
Explanation
DNS = 53; SMTP = 25; POP3 = 110; DHCP = 67/68.
Which HTML tag creates the largest heading?
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Correct answer: (B) <h1>
Explanation
h1 is the largest, h6 the smallest.
Which CSS property changes the text colour?
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Correct answer: (C) color
Explanation
The CSS property is simply color.
In JavaScript, typeof null returns:
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Correct answer: (D) "object"
Explanation
A long-standing JavaScript quirk: typeof null is "object".
Which attribute value opens a link in a new tab?
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Correct answer: (D) target="_blank"
Explanation
target="_blank" opens a new browsing context.
Which statement about XML is TRUE?
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Correct answer: (A) Tags are user-defined
Explanation
XML lets you define your own tags; it is case-sensitive and stores data.
In the CSS box model, the correct order from inside to outside is:
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Correct answer: (C) Content, padding, border, margin
Explanation
Content is wrapped by padding, then border, then margin.
Which HTTP method sends form data in the request body?
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Correct answer: (D) POST
Explanation
GET appends data to the URL; POST sends it in the body.
Which SDLC model explicitly includes risk analysis in every cycle?
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Correct answer: (C) Spiral model
Explanation
Boehm's spiral model is risk-driven.
Boundary value analysis is a technique of:
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Correct answer: (A) Black-box testing
Explanation
BVA and equivalence partitioning are black-box techniques.
Which type of cohesion is considered the best?
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Correct answer: (C) Functional cohesion
Explanation
Functional is best; coincidental is worst.
Which type of coupling is considered the best (lowest)?
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Correct answer: (A) Data coupling
Explanation
Data coupling is the loosest; content coupling is the worst.
The COCOMO model is mainly used to estimate:
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Correct answer: (A) Effort and cost
Explanation
COCOMO estimates effort, cost and schedule from size (KLOC).
The highest maturity level in the CMM is:
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Correct answer: (B) Optimizing
Explanation
Levels: Initial, Repeatable, Defined, Managed, Optimizing.
Which Agile framework organises work into fixed-length sprints?
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Correct answer: (B) Scrum
Explanation
Scrum uses sprints, a product backlog and daily stand-ups.
Bresenham's line drawing algorithm is efficient mainly because it uses:
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Correct answer: (B) Only integer arithmetic
Explanation
It avoids floating-point calculations.
The RGB colour model is a:
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Correct answer: (C) Additive model
Explanation
RGB adds light (used for screens); CMYK is subtractive (printing).
What frame-buffer size is needed for a 1024 × 768 display with 24-bit colour?
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Correct answer: (B) 2.25 MB
Explanation
1024 × 768 × 3 bytes = 2,359,296 bytes = 2.25 MB.
Which type of machine learning trains a model on labelled data?
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Correct answer: (D) Supervised learning
Explanation
Supervised learning uses input–output (labelled) pairs.
Under the IT Act 2000, identity theft is punishable under which section?
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Correct answer: (C) Section 66C
Explanation
66C – identity theft; 66D – cheating by personation; 67 – obscene material.
Teaching Methodology 10 questions
NEP 2020 replaces the 10+2 school structure with:
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Correct answer: (A) 5+3+3+4
Explanation
Foundational, Preparatory, Middle and Secondary stages.
The highest level in Bloom's revised taxonomy (cognitive domain) is:
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Correct answer: (C) Creating
Explanation
Remember, Understand, Apply, Analyse, Evaluate, Create.
Vygotsky's Zone of Proximal Development refers to:
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Correct answer: (B) The gap between what a learner can do alone and with guidance
Explanation
ZPD is the range of tasks possible with a more knowledgeable other's help.
Formative assessment is primarily used to:
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Correct answer: (D) Improve learning during instruction
Explanation
Formative = assessment for learning, during the process.
According to Piaget, children of about 7–11 years are in which stage?
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Correct answer: (D) Concrete operational
Explanation
Concrete operational stage: logical thinking about concrete objects.
In a constructivist classroom, the teacher mainly acts as a:
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Correct answer: (B) Facilitator
Explanation
Learners construct knowledge; the teacher facilitates.
A computer science teacher uses pair programming (driver–navigator). This mainly promotes:
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Correct answer: (D) Collaborative learning
Explanation
Two learners co-create code, discussing and reviewing each other's work.
The Rights of Persons with Disabilities Act, 2016 recognises how many types of disabilities?
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Correct answer: (C) 21
Explanation
The RPwD Act 2016 lists 21 disabilities.
The theory of Multiple Intelligences was proposed by:
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Correct answer: (A) Howard Gardner
Explanation
Gardner proposed linguistic, logical-mathematical, spatial and other intelligences.
Microteaching is best described as:
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Correct answer: (C) A scaled-down teaching session with a small group and short duration
Explanation
Microteaching practises one teaching skill at a time in short cycles with feedback.
Practise it as a real test
Reading answers is not the same as solving under time pressure. Attempt DSSSB TGT Computer Science Full Mock Test 1 online with the real 120-minute timer and marking scheme to get your score and all-India rank, or browse the other tests in the DSSSB TGT Computer Science Mock Test & Previous Year Papers.