Chapter 18 Study Guide 553

19.During a tape backup job, a recycled tape that should have been empty was full and the backup was aborted. What is the most likely cause of the problem?

A.The tape drive needs to be cleaned

B.The retention settings of the tape are incorrect and set too long

C.The software is backing up the wrong servers

D.There was too much data to back up to one tape

20.The Web server on a Linux system keeps crashing five minutes after it starts. What is the first step in trying to troubleshoot the problem?

A.Reboot the system

B.Check the httpd.conf file for errors

C.Examine the Web server application logs

D.Stop and restart the httpd daemon

Scenarios

1.A Linux administrator is having trouble connecting to a server at a remote office. The IP address of the server is 10.1.2.100. What utilities can she use to try and troubleshoot the network connectivity problem?

2.A user is trying to send a print job to a printer with no success. What are the steps that he should take to troubleshoot the problem?

Lab Exercises

Lab 18-1 Application and process management

The objective for this hands-on lab is to gain experience in checking system applications and processes and being able to stop and start them. You should be able to use any default Linux installation for this exercise.

1.Logged in as root, test the telnet services. Examine the /etc/inetd.conf file, and look for the line that configures telnet.

cat /etc/inetd.conf | grep telnet

If the section is commented out with a pound (#) sign before the section, then telnet is disabled. If it isn’t commented out, then edit the file and add the pound sign to the beginning of the telnet line.

2.Restart the inetd daemon to make sure that your changes are enabled: killall -HUP inetd