Question

Network administrators connect to a legacy server using Telnet. They want to secure these transmissions using encryption at a lower layer of the OSI model. What could they use?

A) IPv4
B) IPv6
C) SSH
D) SFTP.

Answer 1

Network administrators can use SSH to secure the telnet transmissions at a lower layer of the OSI model.

Step-by-step explanation:

To secure the telnet transmissions at a lower layer of the OSI model, network administrators can use SSH (Secure Shell). SSH is a cryptographic network protocol that provides secure communication over an insecure network. It encrypts the data transmitted between the client and the server, ensuring the confidentiality and integrity of the communications. SSH is widely used as a secure alternative to Telnet, as it provides strong encryption and authentication mechanisms.