In an enterprise where several departments frequently report network connectivity issues, a network technician is using diagnostic tools to identify the problem areas. The technician decides to utilize a protocol that helps in providing 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. Which protocol is the technician utilizing?
ICMP is used for sending error messages and operational information indicating that a network is not reachable, among other issues. It is not designed to encrypt data, route packets between networks, or provide DNS resolution, which is why the other options are incorrect.
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What is ICMP and how does it work?
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Why is ICMP not used for data encryption or routing?