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NEW QUESTION 109
Which of the following commands prints a list of usernames (first column) and their primary group (fourth column) from the /etc/passwd file?
fmt -f 1,4 /etc/passwd
- A. cut -d : -f 1,4 /etc/passwd
- B. sort -t : -k 1,4 /etc/passwd
- C. split -c 1,4 /etc/passwd
- D.
- E. paste -f 1,4 /etc/passwd
Answer: B
NEW QUESTION 110
When booting from the hard disk, a computer successfully loads the Linux kernel and initramfs but hangs during the subsequent startup tasks. The system is booted using a Linux based rescue CD to investigate the problem. Which of the following methods helps to identify the root cause of the problem?
- A. Using the dmesgcommand from the rescue CD's shell to view the original system's boot logs.
- B. Investigating the file /var/log on the computer's hard disk for possible errors.
- C. Rebooting again from the hard drive since the system successfully booted from the rescue CD.
- D. Investigating the file /proc/kmsg on the computer's hard disk for possible errors.
- E. Using chrootto switch to the file system on the hard disk and use dmesgto view the logs.
Answer: B
NEW QUESTION 111
You want to preview where the package file, apache-xml.i386.rpm, will install its files before installing it.
What command do you issue?
- A. rpm -qv apache-xml.i386.rpm
- B. rpm -qpl apache-xml.i386.rpm
- C. rpm -qp apache-xml.i386.rpm
- D. rpm -ql apache-xml.i386.rpm
Answer: B
NEW QUESTION 112
Which of the following commands is used to change options and positional parameters within a running Bash shell?
- A. setsh
- B. envsetup
- C. history
- D. set
- E. bashconf
Answer: D
Explanation:
Explanation/Reference:
NEW QUESTION 113
After a power outage, the XFS file system of /dev/sda3is inconsistent. How can the existing file system errors be fixed?
- A. By running xfs_repairon the file system
- B. By running xfsadmin repairon the file system
- C. By using mount -fto force a mount of the file system
- D. By running xfsckon the file system
- E. By mounting the file system with the option xfs_repair
Answer: A
NEW QUESTION 114
FILL BLANK
Which command is used to change the priority of an already running process? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
renice
NEW QUESTION 115
Which character, added to the end of a command, runs that command in the background as a child process of the current shell?
- A. +
- B. &
- C. %
- D. !
- E. #
Answer: B
NEW QUESTION 116
Creating a hard link to an ordinary file returns an error. What could be the reason for this?
- A. The source file is a shell script.
- B. The source and the target are on different filesystems.
- C. The source file is already a hard link.
- D. The source file is read-only.
- E. The source file is hidden.
Answer: B
NEW QUESTION 117
Which command is used to query information about the available packages on a Debian system?
- A. dpkg-search
- B. apt-get
- C. apt-cache
- D. apt-search
- E. dpkg
Answer: C
NEW QUESTION 118
Which of the following is the device file name for the second partition on the only SCSI drive?
- A. /dev/hda1
- B. /dev/sda2
- C. /dev/sd0a2
- D. /dev/sd1p2
Answer: B
NEW QUESTION 119
FILL BLANK
Which command displays the current disk space usage for all mounted file systems? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
df
NEW QUESTION 120
A user accidentally created the subdirectory \dirin his home directory. Which of the following commands will remote that directory?
- A. rmdir '~/\dir'
- B. rmdir ~/'dir'
- C. rmdir ~/\\dir
- D. rmdir "~/\dir"
- E. rmdir ~/\dir
Answer: E
NEW QUESTION 121
Which of the following commands redirects the output of lsto standard error?
ls >-1
- A. ls >>2
- B. ls >&2
- C. ls <<ERR
- D. ls |error
- E.
Answer: A
NEW QUESTION 122
Which of the following commands can be used to search for the executable file foo when it has been placed in a directory not included in $PATH?
- A. query
- B. which
- C. apropos
- D. whereis
- E. find
Answer: E
NEW QUESTION 123
Which world-writable directory should be placed on a separate partition in order to prevent users from being able to fill up the / filesystem? (Specify the full path to the directory.)
Answer:
Explanation:
/tmp, tmp,/var/tmp, /tmp/, /var/tmp/
NEW QUESTION 124
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