Match List-I of firewalls with List-II of their usage. Select the correct answer from the given options.
Match List-I of firewalls with List-II of their usage. Select the correct answer from the given options.
A. Stateful inspection Firewall — I. Telnet
B. Packet filter Firewalls — II. Operating Systems
C. Proxy server Firewalls — III. Mail servers
D. Application level Firewalls — IV. Inbound network traffic
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Correct answer: (A) A-IV, B-II, C-III, D-I
Explanation
As keyed: stateful inspection firewalls track inbound network traffic, packet filters are built into operating systems/routers, proxy servers front services such as mail servers, and application-level gateways handle services like Telnet.