defence exam ITBP (Telecommunication) Sub Inspector Mock Test 2024 Computer Networks Concept of Layering Transport Layer
Which of the following statements about ICMP (Internet Control Message Protocol) might be true?
1
It reports all errors which occur during transmission
2
A redirect message is used when a router notices that a packet seems to have been routed wrongly
3
It informs routers when an incorrect path has been taken
4
The "destination unreachable" type message is used when a router cannot locate the destination