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Question

Internet control message protocol (ICMP) message are encapsulated in ...............

A
Packets
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B
IP datagrams
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C
User datagram
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D
None of the above
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Solution

The correct option is A IP datagrams

Internet control message protocol (ICMP) message are encapsulated in IP datagrams.

Although the IP layer provides a best-effort unreliable delivery system, each router provides an Internet Control Message Protocol (ICMP) error message to the original sender whose IP address is encapsulated in the IP datagram. The ICMP message allows the router to send error or control messages to the sending host.

The format of data that can be recognized by IP is called an IP datagram. It consists of two components, namely, the header and data, which need to be transmitted. The fields in the datagram, except the data, have specific roles to perform in the transmission of data.

The Internet Control Message Protocol (ICMP) is a supporting protocol in the Internet protocol suite. It is used by network devices, including routers, to send error messages and operational information indicating, for example, that a requested service is not available or that a host or router could not be reached.

It depends on Internet Control Message Protocol(ICMP) to provide an error control. It is used for reporting errors and management queries. It is a supporting protocol and used by networks devices like routers for sending the error messages and operations information.


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