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SSCP · Question #876

Which of the following protocols' primary function is to send messages between network devices regarding the health of the network?

The correct answer is D. Internet Control Message protocol (ICMP). ICMP is designed specifically to communicate network health and diagnostic information between devices. It is used by tools like ping (tests reachability) and traceroute (maps packet paths), and delivers error messages such as 'Destination Unreachable' or 'Time Exceeded.' ARP…

Submitted by ricky.ec· Apr 18, 2026Network and Communications Security

Question

Which of the following protocols' primary function is to send messages between network devices regarding the health of the network?

Options

  • AReverse Address Resolution Protocol (RARP).
  • BAddress Resolution Protocol (ARP).
  • CInternet Protocol (IP).
  • DInternet Control Message protocol (ICMP).

How the community answered

(36 responses)
  • A
    3% (1)
  • B
    6% (2)
  • C
    3% (1)
  • D
    89% (32)

Explanation

ICMP is designed specifically to communicate network health and diagnostic information between devices. It is used by tools like ping (tests reachability) and traceroute (maps packet paths), and delivers error messages such as 'Destination Unreachable' or 'Time Exceeded.' ARP (B) resolves IP-to-MAC addresses, RARP (A) resolves MAC-to-IP addresses, and IP (C) is the core addressing and routing protocol - none of which are primarily focused on network health messaging.

Topics

#Network protocols#ICMP#Network health

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