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
User Votes:
A
50%
B
50%
C
50%
D
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E
50%
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Question 2
What are the differences between a private web browser window and a regular web browser window? (Choose three.)
A. Private web browser windows do not allow printing or storing websites.
B. Private web browser windows do not store cookies persistently.
C. Private web browser windows do not support logins into websites.
D. Private web browser windows do not keep records in the browser history.
E. Private web browser windows do not send regular stored cookies.
Answer:
BDE
User Votes:
A
50%
B
50%
C
50%
D
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E
50%
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Question 3
How is a new Linux computing instance provisioned in an laaS cloud?
A. The standard Linux installer has to be run through a remote console.
B. After buying a Linux distribution, its vendor delivers it to a cloud instance.
C. The installation has to be prepared in a local virtual machine which is then copied to the cloud.
D. The cloud hosting organization provides a set of pre-prepared images of popular Linux distributions.
E. A provider-specific configuration file describing the desired installation is uploaded to the cloud provider.
Answer:
E
User Votes:
A
50%
B
50%
C
50%
D
50%
E
50%
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Question 4
Which of the following statements is true about Free Software?
A. It is developed by volunteers only.
B. It may be modified by anyone using it.
C. It must always be available free of charge.
D. It only runs on Linux.
E. It is only distributed as a compiled binary.
Answer:
B
User Votes:
A
50%
B
50%
C
50%
D
50%
E
50%
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Question 5
Which of the following Linux Distributions is derived from Red Hat Enterprise Linux?
A. Raspbian
B. openSUSE
C. Debian
D. Ubuntu
E. CentOS
Answer:
E
User Votes:
A
50%
B
50%
C
50%
D
50%
E
50%
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Question 6
Which of the following programs are web servers? (Choose two.)
A. Apache HTTPD
B. Postfix
C. Curl
D. Dovecot
E. NGINX
Answer:
AE
User Votes:
A
50%
B
50%
C
50%
D
50%
E
50%
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Question 7
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
User Votes:
A
50%
B
50%
C
50%
D
50%
E
50%
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Question 8
Which of the following commands finds all lines in the file operating-systems.txt which contain the term linux, regardless of the case?
A. igrep linux operating-systems.txt
B. less -i linux operating-systems.txt
C. grep -i linux operating-systems.txt
D. cut linux operating-systems.txt
E. cut [Ll] [Ii] [Nn] [Uu] [Xx] operating-systems.txt
Answer:
C
User Votes:
A
50%
B
50%
C
50%
D
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E
50%
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Question 9
Which of the following commands extracts the contents of the compressed archive file1.tar.gz?
A. tar -czf file1.tar.gz
B. ztar file1.tar.gz
C. tar -xzf file1.tar.gz
D. tar --extract file1.tar.gz
E. detar file1.tar.gz
Answer:
C
User Votes:
A
50%
B
50%
C
50%
D
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E
50%
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Question 10
Which of the following statements are true regarding a typical shell script? (Choose two.)
A. It has the executable permission bit set.
B. It starts with the two character sequence #!.
C. It is located in /usr/local/scripts/.
D. It is located in /etc/bash/scripts/.
E. It is compiled into a binary file compatible with the current machine architecture.
Answer:
AE
User Votes:
A
50%
B
50%
C
50%
D
50%
E
50%
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Question 11
Which of the following commands creates the ZIP archive poems.zip containing all files in the current directory whose names end in .txt?
A. zip *.txt > poems.zip
B. zcat *.txt poems.zip
C. zip poems.zip *.txt
D. zip cfz poems.zip *.txt
E. cat *.txt | zip poems.zip
Answer:
C
User Votes:
A
50%
B
50%
C
50%
D
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E
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Question 12
What is the return value of a shell script after successful execution?
A. 1
B. 0
C. -1
D. -255
E. 255
Answer:
B
User Votes:
A
50%
B
50%
C
50%
D
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E
50%
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Question 13
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
User Votes:
A
50%
B
50%
C
50%
D
50%
E
50%
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Question 14
Which operator in a regular expression matches the preceding character either zero or one time?
A. ?
B. * C. +
D. %
E. $
Answer:
A
User Votes:
A
50%
B
50%
D
50%
E
50%
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Question 15
Which of the following examples shows the general structure of a for loop in a shell script?