IT Ess 2 Modul 11

1 Which of the following can be used to execute a series of Linux commands at a specified time?

which
run
*time
at
when

2 What are three key concepts when analyzing and optimizing network performance?

*bottlenecks, baselines, and best practices
baselines, base logs, and best practices
best practices, base logs, and bottlenecks
baseline, bottlenecks, and backups

3 Which output does the df command produce when executed from the Linux CLI?

*detailed information about the file system
detailed information about the top-level directory
detailed information about CPU and RAM usage
detailed information about the data stored on the disk

4 When should a baseline reading of network performance be made?

at the busiest time of day
*when the network is running normally
at the least busy time of day
when the network is not in use

5 Which setting determines if a program will run with the permissions of its assigned group or the permissions of the user's groups?

*SUID
GUID
SSID
SGID

6 Which of the following statements is true about the use of Performance Tool?

Performance Tool is only available for use on Linux computers.
*Performance Tool should be used sparingly since it uses valuable system resources.
Performance Tool can only be used to monitor network computers.
Performance Tool can only be used in conjunction with a pre-established baseline.

7 Which file can be studied by programmers to determine the potential cause of a program crash?

*Core Dump
Script Debugger
Process Tracker
Trace File
Error Pack

8 Which of the following tools can be used to analyze Linux system log files?

*Logcheck
Regscan
Filecheck
Scanfile

9 Which Linux command is used to create filesystems on a partition?

mkdev
fdisk
*mkfs
fsck

10 Which statement is true when the SUID bit is set as the root account for a program?

Root cannot execute the program.
Only root can execute the program.
*Any user can execute the program using root account permission.
Users can execute the program only if they belong to the same group as the owner of the program.
Only the owner of the program can execute the program.

11 Which Linux command is used to create partitions on a hard disk?

mkdev
*fdisk
mkfs
fsck

12 Which Linux command can be used to terminate processes that are consuming too many system resources?

at
stop
*kill
term
kip

13 What are two guidelines that an administrator should follow to maintain a healthy hard drive? (Choose two.)

limit the amount of RAM available to individual users
*defragment the hard drive regularly
allow users to use all available storage with no limits
*continually manage available disk space
do not limit the size of user home directories

14 Which Linux command can be used to terminate a group of processes that have the same name instead of terminating them with their PID numbers?

term
stop
*killall
halt

15 Linux administrators have several CLI commands available to display information on system resources. What is the output associated with using the du command?

a display of disk usage for a file system
*a display of disk usage for a directory
a display of disk usage for file information
a display of the user's remaining disk space

16 Which disk management tool is available to limit the amount of data a user can store on a network?

disk quota
disk ceiling
*disk limit
disk wall
disk container

17 Which of the following can be used to monitor system resources in Windows XP and Windows 2000?

Event Viewer
Scandisk
*Performance Tool
Task Scheduler
Checkdisk

18 What is the function of the /etc/crontab file in Linux?

*to schedule system jobs
to schedule user jobs
to validate created processes
to remove cron jobs

19 A system unexpectedly shuts down due to power failure. As a result, the file system is damaged. Which Linux command could be used to repair the file system?

*mkfs
fsck
diskcheck
filrep
ps