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NEW QUESTION 1
Which command copies the contents of the directory /etc/, including all sub-directories, to /root/?
- A. copy /etc /root
- B. cp -r /etc/* /root
- C. cp -v /etc/* /root
- D. rcp /etc/* /root
- E. cp -R /etc/*.* /root
Answer: B
NEW QUESTION 2
What is true about the dmesg command? (Choose two correct answers.)
- A. It traces the execution of a command and shows each step the program carries out.
- B. It sends messages to the command lines of all current user sessions.
- C. It displays the content of the Linux kernel’s ring buffer.
- D. It immediately outputs all new messages written to the system journal.
- E. It might not display older information because it was overwritten by newer information.
Answer: CE
NEW QUESTION 3
What is true about the owner of a file?
- A. Each file is owned by exactly one user and one group.
- B. The owner of a file always has full permissions when accessing the file.
- C. The user owning a file must be a member of the file’s group.
- D. When a user is deleted, all files owned by the user disappear.
- E. The owner of a file cannot be changed once it is assigned to an owner.
Answer: A
NEW QUESTION 4
The file script.sh in the current directory contains the following content:
#!/bin/bash echo $MYVAR
The following commands are used to execute this script: MYVAR=value
./script.sh
The result is an empty line instead of the content of the variable MYVAR. How should MYVAR be set in order to make script.sh display the content of MYVAR?
- A. !MYVAR=value
- B. env MYVAR=value
- C. MYVAR=value
- D. $MYVAR=value
- E. export MYVAR=value
Answer: E
NEW QUESTION 5
What is the preferred source for the installation of new applications in a Linux based operating system?
- A. The vendor's version management system
- B. A CD-ROM disk
- C. The distribution's package repository
- D. The vendor's website
- E. A retail store
Answer: C
NEW QUESTION 6
Which package management tool is used in Red Hat-based Linux Systems?
- A. portage
- B. rpm
- C. apt-get
- D. dpkg
- E. packagectl
Answer: B
NEW QUESTION 7
What information is stored in /etc/passwd? (Choose three correct answers.)
- A. The user’s storage space limit
- B. The numerical user ID
- C. The username
- D. The encrypted password
- E. The user\s default shell
Answer: BCD
NEW QUESTION 8
What is the UID of the user root?
- A. 1
- B. -1
- C. 255
- D. 65536
Answer: E
NEW QUESTION 9
Which of the following commands puts the lines of the file data.csv into alphabetical order?
- A. a..z data.csv
- B. sort data.csv
- C. abc data.csv
- D. wc -s data.csv
- E. grep --sort data.csv
Answer: B
NEW QUESTION 10
Which of the following commands sorts the output of the command export-logs?
- A. export-logs < sort
- B. export-logs > sort
- C. export-logs & sort
- D. export-logs | sort
- E. export-logs <> sort
Answer: D
NEW QUESTION 11
What is true about the su command?
- A. It is the default shell of the root account.
- B. It can only be used by the user root.
- C. It runs a shell or command as another user.
- D. It changes the name of the main administrator account.
- E. It locks the root account in specific time frames.
Answer: C
NEW QUESTION 12
Which one of the following statements concerning Linux passwords is true?
- A. All passwords can be decrypted using the system administrator's master password.
- B. Passwords may never start with a non-letter.
- C. Users cannot change their password once it has been set.
- D. Passwords are only stored in hashed form.
- E. Passwords may be at most six characters long.
Answer: D
NEW QUESTION 13
Reverse DNS assigns hostnames to IP addresses. How is the name of the IP address 198.51.100.165 stored on a DNS server?
- A. In the A record for 165.100.51.198.ipv4.arpA.
- B. In the PTR record for 165.100.51.198.in-addr.arpA.
- C. In the RNAME record for 198-51-100-165.rev.arpA.
- D. In the ARPA record for 165.100.51.198.rev.
- E. In the REV record for arpA.in-addr.198.51.100.165.
Answer: B
NEW QUESTION 14
What is the return value of a shell script after successful execution?
- A. 1
- B. -1
- C. -255
- D. 255
Answer: B
NEW QUESTION 15
What is a Linux distribution?
- A. The Linux file system as seen from the root account after mounting all file systems.
- B. A bundling of the Linux kernel, system utilities and other software.
- C. The set of rules which governs the distribution of Linux kernel source code.
- D. An operating system based on Linux but incompatible to the regular Linux kernel.
- E. A set of changes to Linux which enable Linux to run on another processor architecture.
Answer: B
NEW QUESTION 16
Most commands on Linux can display information on their usage. How can this information typically be displayed?
- A. By running the command with the option /? or /??.
- B. By running the command with the option ?! or ?=!.
- C. By running the command with the option /doc or /documentation.
- D. By running the command with the option -h or --help.
- E. By running the command with the option -m or --manpage.
Answer: E
NEW QUESTION 17
Which of the following directories contains information, documentation and example configuration files for installed software packages?
- A. /usr/share/doc/
- B. /etc/defaults/
- C. /var/info/
- D. /doc/
- E. /usr/examples/
Answer: A
NEW QUESTION 18
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