RHEL Linux - Red Hat System Administration Practice Exam

These questions are part of the practice quiz. Start practicing

• What does the letter 'd' in the service "atd" signify?
• What is the purpose of the SELinux feature in RHEL?
• What is the use of the 'grep' command?
• OpenSSH is the software implementation of what?
• Which command can be used to create a compressed archive in RHEL?
• The useradd command is primarily used to what?
• Which directory in the File System Hierarchy contains configuration files specific to the system?
• Which of the following is not a mode in Vim?
• To create a remote interactive shell as the current user, which command should you use?
• Which command would you use to change the ownership of a file to a new user?
• What does the command 'rm -rf' do?
• What option would you use with the rm command to remove directories and their contents recursively?
• When using the tar utility, which option (switch) is needed to list the contents of an archive?
• A list of well-known and registered ports can be found in the _____ file.
• Which one of these is not a common protocol?
• What is the purpose of the 'systemctl mask' command?
• Messages related to startup are logged in _____
• To search for the string "recursive" while in a man page, what should you do?
• -v or verbosity would be useful with the tar command if you wanted to see:
• What command is used to start a service immediately without enabling it at boot?
• What does the command 'chmod 755' accomplish?
• An IPv4 address is a _______ number, normally expressed in decimal as four octets ranging in value from 0 to 255, separated by dots.
• To protect longer character strings in the BASH shell, use:
• One of the oldest and most common commands for creating and working with backup archives is the ______ command.
• Which of the following is true about the output -rw-rw-r-- bart simpson file1?
• Which command is used to remove a group in Linux?
• Which program provides a dynamic view of the system's processes, displaying a summary header followed by a process or thread list?
• What type of ownership does the output -rw-rw-r-- imply for the file?
• Which command should you use to delete an empty directory?
• '[root@serverX~]$ tar cjf /root/logbackup.tar.bz12 /var/log' What will this command do?
• Which directory typically contains service configuration files in RHEL Linux?
• Which command will allow the atd service to start at boot if it is not already configured that way?
• Which command allows subscribers to search and display knowledge base and other Red Hat Customer Portal content?
• Users can authenticate ssh logins without a password by using
• When first opened, Vim starts in which mode?
• Which command would you use to change the ownership of a file in Linux?
• What is defined as one of multiple logical consoles that can support independent login sessions?
• What is the default permission set when a file is created in Linux?
• What is the full-featured text editor for the GNOME desktop environment?
• Which command allows a user to navigate up to the parent of the current location?
• In a pipeline, which command will copy its standard input to its standard output and redirect its standard output to files named as arguments?
• Which command is used to view network interfaces and their properties?
• Which command is used to view system resource usage on a Linux system?
• What command is commonly used to check current running processes in Linux?
• If you want to create a system group using the groupadd command, which option should be used?
• The ______ command shows an overview of the current time-related system settings, including current time, time zone, and NTP synchronization settings of the system
• If you want to close a remote connection, other than shutting down the remote system you can use the command _____
• In terms of file permissions, which permissions override others?
• RedHat Insights currently provides predictive analytics and recommendations for which RedHat Products?
• Which feature allows a user to quickly complete commands or file names once they have typed enough at the prompt to make it unique?
• Which command is used to view the logs for a service managed by systemd?
• What is the default shell for most Linux distributions?
• What is the purpose of the command 'chown' in Linux?
• What command can be used to change the password policies for a user?
• The _____ command transfers files from a remote host to the local system or from the local system to a remote host.
• Which Linux command allows you to view the contents of a text file in a paginated manner?
• What is another name for Zombie processes?
• What does the 'S' state indicate in the context of a Linux process?
• What will the command journalctl -p err do?
• If two files or directories are similar between two systems and you only wish to copy the differences between the systems, which command is the best to use in this situation?
• What process or system-specific contents are cleared during reboot?
• To list all environment variables in a Linux shell session, which command would you use?
• The ____ command is used by the superuser, root, to create additional users on the system.
• Which option should be used with the groupadd command to create a system group?
• What command is used to update the system packages in RHEL?
• What command is used to perform a keyword search of man pages?
• yum install cowsay will do which of the following?
• In regards to RPM naming, what does the term architecture refer to?
• By default, how much space can the journal occupy on the file system?
• Which configuration file controls the default behavior of user account settings in Linux?
• Choose the best answer: Which of these is not a severity level in a Red Hat bug report?
• What command is used to change file permissions from the command line?
• In RHEL, which command is used to check system memory usage?
• If you wanted to check the status of the ssh daemon, which command would you use?
• Which log file is related to periodically executed tasks?
• A _____ is an organized structure of data-holding files and directories residing on a storage device, such as a physical disk or partition
• What is the command to display disk usage in a human-readable format?
• Which of the following commands is used to display disk usage in RHEL?
• RedHat Insights categorizes the risks that an issue presents to your system. Which of these is not one of the categories?
• Which file is used to configure the system's hostname in RHEL?
• Which file provides system configuration information during boot-up?
• Which command can be used to restore a deleted file?
• The GID range used when a new group is added is determined by which file?
• What command allows a user to be permitted to run a command as root, or as another user?
• Which command allows you to switch to another user in a Linux environment?
• What is the effect of setting the sticky bit on a directory?
• The command 'su' without a target user indicates that you want to:
• Which command will add the execute permission for everyone to a file named file5?
• What does the /dev/sda1 refer to in a Linux file system?
• Which of the following commands is used to change file permissions in Linux?
• Which command is used to display the current working directory in Linux?
• Which process state indicates that the process has stopped?
• Which file contains user account information in Linux?
• If you want to display only journal messages from the systemd process, which command is correct?
• Where can the maximum size and free space for the journal be configured?
• The mkdir command creates new directories with which of the following default permissions?
• What is the permission level assigned to a user who creates a directory using the default settings?
• What result does chmod 770 produce on a file?
• What service is primarily responsible for managing system logs in Red Hat Linux?
• Which UID is always assigned to the superuser account, root?
• Which wildcard pattern can be used to match any string of zero or more characters?
• Which special permission allows a user to run an executable file (command) as the user of the file?
• Which command is equivalent to: chown :powerrangers mighty_morphin_file1?
• Which command can be used to remove a user from /etc/passwd while leaving their home directory intact?
• Which command creates a new directory in the current path?
• Which directory contains dynamic configuration data, such as FTP and websites?
• Each log message is categorized by a ___________
• Which command is used to manage user accounts in RHEL Linux?
• What does the command 'sudo -l' do?
• Linux implements which calculation as a representation of expected service wait times for CPU, disk, and network I/O?
• ______ has a huge number of options that can be provided to describe exactly what kind of file should be found
• One way to have regular users become sudoers is to edit the settings in which file?