A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a switch to manage it. Which access method should be chosen?

  • AUX
  • Telnet
  • SSH
  • Console
Explanation & Hint:

The network administrator should choose SSH (Secure Shell) to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a switch. SSH provides a secure channel over an unsecured network by using encryption, which ensures confidentiality and integrity of data.

The other methods listed have the following characteristics:

  • AUX (Auxiliary port): This is used for remote management similar to the console port but usually over a modem. It does not inherently provide encryption for security.
  • Telnet: This is an older protocol that provides no encryption, making it insecure for transmitting sensitive information because the session contents, including user ID and password, can be intercepted.
  • Console: The console port is for direct physical connection to the device and does not provide encryption because it’s designed for a direct serial connection rather than remote access.

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