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What are two ways Telnet and SSH function? (Choose two.)

A.

SSH is a protocol that provides a secure remote access connection to network devices.

Answers
A.

SSH is a protocol that provides a secure remote access connection to network devices.

B.

Telnet is a protocol that provides a secure remote access connection to network devices.

Answers
B.

Telnet is a protocol that provides a secure remote access connection to network devices.

C.

SSH uses the well-known TCP port 23 for its communication.

Answers
C.

SSH uses the well-known TCP port 23 for its communication.

D.

Telnet is preferred over SSH for security reasons.

Answers
D.

Telnet is preferred over SSH for security reasons.

E.

A Telnet network management connection is dropped when a router reboots.

Answers
E.

A Telnet network management connection is dropped when a router reboots.

Suggested answer: A, E

Explanation:

* A. SSH...secure remote access: This is correct. SSH (Secure Shell) is designed specifically for secure remote access. It utilizes strong encryption to protect data transmissions, including login credentials and commands.

* B. Telnet...secure remote access: This is incorrect. Telnet is inherently insecure as it transmits all data, including sensitive passwords, in cleartext.

* C. SSH uses...TCP port 23: This is incorrect. SSH uses TCP port 22 by default, while Telnet uses TCP port 23.

* D. Telnet preferred...security reasons: This is incorrect. SSH is vastly preferred over Telnet due to its strong security features.

* E. Telnet connection...router reboots: This is correct. Telnet connections are not persistent, so a router reboot disrupts them. This re-enforces their lack of suitability for critical management tasks.

Key Points:

* Security: SSH is the recommended protocol for remote access to network devices due to its strong encryption and authentication mechanisms.

* Persistence: Telnet connections are temporary and get disrupted on events like router reboots.


asked 07/10/2024
Asif Khan
42 questions
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