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:

Face Value

The dollar amount written on a note; it is the same as the amount borrowed, or the principal. With regard to corporate and government bonds, the amount that will be paid to the holder when a bond is redeemed at maturity.

Common Stock

The usual type of stock issued by a corporation, often with different rights compared to preferred stock.

Callable Bond

A type of bond that gives the issuer the right to pay off the debt before its maturity date under certain conditions, often at a defined call price.

Interest Rate

The percentage of a sum of money charged for its use, typically expressed as an annual percentage.