Computer-Networks
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Question 55
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A program on machine X attempts to open a UDP connection to port 5376 on a machine Y, and a TCP connection to port 8632 on machine Z. However, there are no applications listening at the corresponding ports on Y and Z. An ICMP Port Unreachable error will be generated by
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Y but not Z
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Z but not Y
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Neither Y nor Z
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Both Y and Z
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Question 55 Explanation:
When an IP packet is lost or discarded ICMP packet will be generated by receiver or the router. It doesn’t matter whether its containing TCP or UDP inside it.
Correct Answer: D
Question 55 Explanation:
When an IP packet is lost or discarded ICMP packet will be generated by receiver or the router. It doesn’t matter whether its containing TCP or UDP inside it.