CompTIA Linux+ Certification XK0-004 Study Guide

 

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Share some Linux+ XK0-004 exam questions and answers below.
Which of the following can be used to boot a DVD from a remote device to initialize a Linux system setup on bare metal hardware as if it is a local DVD? 
A. UEFI 
B. PXE 
C. NFS 
D. GRUB 
Answer: A

Which of the following is the BEST reason for not storing database files in the /var directory? 
A. The /var filesystem is not fast enough for database files. 
B. The number of files in /var is limited by the available inodes. 
C. Files in /var do not have strict file permissions. 
D. If log files fill up /var, it might corrupt the database. 
Answer: D

A Linux administrator needs to remotely update the contents of the www.comptia.org/contacts URL. 
Which of the following commands would allow the administrator to download the current contents of the URL before updating? 
A. curl www.comptia.org/contacts 
B. dig www.comptia.org/contacts 
C. apt-get www.comptia.org/contacts 
D. yum list www.comptia.org/contacts 
Answer: A

A systems administrator needs to append output of ls –lha /opt command to the contents of a test.txt file. 
Which of the following commands will accomplish this? 
A. ls –lha /opt > test.txt 
B. ls –lha /opt < test.txt 
C. ls –lha /opt >> test.txt 
D. ls –lha /opt << test.txt 
Answer: C

An administrator receives a warning about a file system filling up, and then identifies a large file located at /tmp/largelogfile. The administrator deletes the file, but no space is recovered on the file system. 
Which of the following commands would BEST assists the administrator in identifying the problem? 
A. lsof | grep largelogfile 
B. pkill /tmp/largelogfile 
C. pgrep largelogfile 
D. ps –ef | grep largelogfile 
Answer: A

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