200-301 Question 242
Single answerA network administrator needs to securely manage a switch remotely over an untrusted network. Which management access method should they use to ensure encryption of the communication session?
- A
Telnet
- B
SSH
- C
HTTP
- D
Console
Show answer and explanation
Correct answer: B
Explanation
When managing network devices remotely over untrusted networks, encryption is critical to protect sensitive data like login credentials and configurations. SSH (Secure Shell) is the preferred method because it provides a secure, encrypted communication channel, unlike Telnet and HTTP. Console access, while secure, is not a remote management method as it requires physical proximity to the device.
- A. Incorrect.
Telnet sends data, including authentication credentials, in plain text, making it insecure for remote management over untrusted networks.
- B. Correct.
SSH provides encrypted communication, ensuring security during remote management sessions over untrusted networks.
- C. Incorrect.
HTTP is used for web-based management but does not encrypt data, making it insecure for managing network devices over untrusted networks.
- D. Incorrect.
Console access is a physical connection to the device and does not involve network-based remote management.