A Linux Administrator Recently Changed the IP Addresses of All

question 137

Multiple Choice

A Linux administrator recently changed the IP addresses of all the web servers from 10.10.50.x to 10.10.100.x. The administrator needs to update the serverlist.txt file to reflect the change. The file contains the following: 10:WebSvr01:10.10.50.21:Main 11:WebSvr02:10.10.50.22:Acconting 12:WebSvr03:10.10.50.23:Intranet 20:NFS01:10.10.20.21:FileServer 30:SMTP01:10.10.30.31:Email Which of the following commands will change the IP addresses and update the files in place?

• A) sed 's|.50|.100|g' serverlist.txt
• B) sed -g 's|.50|.100|a' serverlist.txt
• C) sed -i 's|.50|.100|' serverlist.txt
• D) sed -i 's|.50|.100|g' serverlist.txt

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Definitions:

Real Difference

A genuine discrepancy or variance between two or more entities, factors, or phenomena.

Actions

Actions refer to the steps or measures taken by individuals or groups to achieve a certain objective.

Telecommuting

The practice of working from a remote location outside of a conventional office environment, commonly through the internet.

Internet Access

The ability to connect to the internet to send and receive data.