A Linux Administrator Recently Reprovisioned a New Corporate Web Server

question 4

Multiple Choice

A Linux administrator recently reprovisioned a new corporate web server to replace a legacy one. To minimize the impact on the company's users, the administrator modified the network and DNS settings of the new server to be the same as the legacy server. When attempting to log in to the new server remotely over SSH, the following error message is displayed: WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! Which of the following should the administrator do to resolve the issue?

• A) Restart the network services on both the remote server and the local machine.
• B) Remove the entry for the web server from the known_hosts file on the local machine. Remove the entry for the web server from the known_hosts file on the local machine.
• C) Update the /etc/hosts file on the remote server and local machine. Update the /etc/hosts file on the remote server and local machine.
• D) Add the administrator's public key to the authorized_keys on the remote server. Add the administrator's public key to the authorized_keys on the remote server.

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Definitions:

Gas Mileage

A measure of a vehicle's fuel efficiency, usually expressed in miles per gallon (mpg) or kilometers per liter (km/l).

Truck Speed

The rate at which a truck moves, usually measured in miles per hour or kilometers per hour.

Pearson Correlation Coefficient

A measure of the linear correlation between two variables X and Y, giving a value between +1 and -1, where 1 is total positive linear correlation, 0 is no linear correlation, and -1 is total negative linear correlation.

Sales

The action or business of selling products or services to customers.