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Question

Difficulty: EasyRemote Access and Out-of-Band Management

A network technician needs to establish an encrypted command-line management session with a core switch across the local subnet. Which protocol should the technician use to ensure administrative credentials are encrypted during transmission?

  1. SSHAnswer
  2. B
    Telnet
  3. C
    TFTP
  4. D
    HTTP

Answer

SSH (Secure Shell)
SSH provides a secure, encrypted transport layer for remote command-line interface (CLI) administration of network devices.

Step-by-Step Solution

1
Identify the operational requirement.
The requirement calls for interactive command-line access with encrypted network communications.
Managing network hardware via unencrypted sessions creates critical security vulnerabilities.
2
Evaluate remote access protocols against security criteria.
SSH provides encrypted shell sessions over TCP port 22, fulfilling the security requirement.
Protocols such as Telnet or HTTP transmit credentials in plaintext, whereas SSH uses cryptography to secure remote administration.

Key Concept

Secure Remote Access with SSH
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Topics

Remote Access and Out-of-Band Management

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