A client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting?

  • SSH
  • FTP
  • Telnet
  • DNS
Explanation & Hint:

The client is requesting DNS (Domain Name System) service. Port 53 is the standard port used for DNS queries. DNS is used to translate domain names (like www.example.com) into IP addresses that can be used by the network to route requests to the correct server.

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