Comprehensive and Detailed Explanation (paraphrased, aligned to N10-009):
SSH provides secure, scriptable remote access used by automation/orchestration tools (e.g., leveraging CLI, NETCONF over SSH, or Ansible modules) to push configurations at scale.
A. RDP is primarily for Windows GUI sessions and is not commonly used for network device automation.
B. Telnet can be scripted but is insecure (plaintext); modern best practice is to use SSH.
D. GUI access is typically manual and not ideal for scalable, repeatable automation.
References (CompTIA Network+ N10-009):
Domain: Network Operations — Configuration management, automation/orchestration, secure management protocols (SSH vs. Telnet), change at scale.
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