Jadis has just created a new Linux server on the cloud service provider that her company uses. She attempts to SSH into it and it immediately fails. Which of the following steps might she have forgotten to do?
A) Configure DNS entries
B) Configure the MAC address in the ARP table
C) Start the RDP daemon
D) Open port 22 on the virtual firewall

Question

Quizplus · Accepted Answer

SSH (Secure Shell) uses port 22 for network communication. If Jadis did not open port 22 on the virtual firewall, her SSH connection attempts would be blocked, leading to immediate failure.

Jadis Has Just Created a New Linux Server on the Cloud