Which of the following statements about ICMP (Internet Control Message Protocol) might be true?

Question

Question

This question was previously asked in

MP Vyapam Group 4 (Assistant Grade-3/Stenographer) Official Paper (Held On: 15 July, 2023 Shift 1)

It reports all errors which occur during transmission
A redirect message is used when a router notices that a packet seems to have been routed wrongly
It informs routers when an incorrect path has been taken
The "destination unreachable" type message is used when a router cannot locate the destination

Answer 1

The correct answer is Option 2

Key Points

ICMP is mainly used for error reporting and diagnostic purposes.
It is an integral part of the Internet Protocol Suite, used by network devices to send error messages and operational information.
ICMP messages are typically used for network diagnostics, such as the "ping" command.
One of the key messages in ICMP is the redirect message, which informs a host that there is a better route available for a particular destination.

Additional Information

ICMP does not report all errors during transmission. It primarily deals with issues like unreachable destinations, routing issues, and network diagnostics.
ICMP "destination unreachable" messages are used when a packet cannot be delivered to its destination.
Routers use ICMP to inform hosts of network issues, but it does not handle path correction directly; that is typically the role of routing protocols.

This solution provides the correct information about ICMP and clarifies why option 2 is accurate.