A user is trying to connect to a running EC2 instance using SSH. However, the user gets a Host key not found error. Which of the below mentioned options is a possible reason for rejection?
A) The user has provided the wrong user name for the OS login
B) The instance CPU is heavily loaded
C) The security group is not configured properly
D) The access key to connect to the instance is wrong

Question

Quizplus · Accepted Answer

The "Host key not found" error typically indicates that the SSH client does not recognize the server's host key. This can happen if the user is trying to connect with the wrong username, as the host key is associated with the specific user account on the server.

A User Is Trying to Connect to a Running EC2