What is the purpose of the TTL (Time-to-Live) field in an IP packet? MCQ with Answer and Explanation

What is the purpose of the TTL (Time-to-Live) field in an IP packet?
A. To prioritize packets
B. To indicate packet length
C. To prevent packets from looping indefinitely
D. To encrypt the packet
Answer: Option C
Solution (By JKSSB Mock Tests)
TTL limits the lifespan of a packet; each hop decrements it, and when it reaches 0, the packet is discarded.

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Which device connects a network to the Internet and often includes firewall functionality?
A. Bridge
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Correct Answer: Option C


Explanation:
A router often connects a local network to the internet and may include security features like firewalls.

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Correct Answer: Option A


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