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LINUX SECURITY PRACTICE & EXAM
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LINUX SECURITY PRACTICE & EXAM
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LINUX SECURITY PRACTICE & EXAMA service in the server is generating errors after changes were made in its configuration
file. You were asked to identify the issue in the configuration file and resolve it. Which of
the following directories would contain the file?
A. /home
B. /etc
C. /bin
D. /tmp - Answers -B. /etc
A new Linux user saved an important file in the system, but can't remember where. He
tries to locate the file using the "locate" command, but it doesn't appear. Which of the
following may be the cause of its "disappearance"?
A. The database used by the locate command is not up-to-date.
B. The file was saved to the /tmp directory and deleted immediately.
C. The simple user account he worked with did not have the ability to locate the file.
D. The terminal needs to be restarted to locate the file. - Answers -A. The database
used by the locate command is not up-to-date.
A Linux user downloaded a new binary to the OS, but can't run it right away. What
should she do to allow execution of the binary from any location in the system?
A. That can't be done. The binary can be executed only from within its own location.
B. She needs to have high-level privileges to execute the binary.
C. The binary files should be placed in a directory located in the PATH.
D. Nothing needs to be done. When it is downloaded, it is automatically set to be
executed from anywhere. - Answers -C. The binary files should be placed in a directory
located in the PATH.
As a junior system administrator, you were tasked with installing package updates on an
Ubuntu server. Which command would you run?
A. sudo apt-get update
B. yum upgrade
C. apt upgrade
D. dnf -y update - Answers -C. apt upgrade
Which command will output only the first five lines of the text.txt file?
A. less text.txt
B. tail -n 5 text.txt
C. head text.txt
D. head -n 5 text.txt - Answers -D. head -n 5 text.txt
Which directory does cd / navigate to?
A. Root directory
B. Parent of the current directory
C. Previous directory
, D. Home directory - Answers -A. Root directory
Which of the following files stores hashed passwords in Linux?
A. /etc/shadow
B. /tmp/password
C. /etc/passwd
D. /etc/hosts - Answers -A. /etc/shadow
Which of the following protocols are unsecure? (Select two)
A. SSH
B. SCP
C. FTP
D. Telnet - Answers -C. FTP
D. Telnet
What is the su command used for?
A. To run commands as a simple user
B. To run applications
C. To switch users
D. To create a super-user
D. To shut down the system - Answers -C. To switch users
What is /tmp the name of?
A. Hidden file
B. Configuration file
C. Directory
D. Read-only file - Answers -C. Directory
What type of users can access the /etc/shadow file?
A. Any user
B. Only superusers - Answers -B. Only superusers
Which open-source software is used in Linux to provide SMB based services?
A. Top
B. MD5sum
C. Samba
D. Named - Answers -C. Samba
By default, Apache serves HTTP content on which port?
A. 8443
B. 8080
C. 65537
D. 443
E. 80 - Answers -E. 80
Which file is edited in Linux to configure the automation of tasks?
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