A systems administrator needs to append output of ls -lha /opt command to the contents of a test. txt file. Which of the following commands will accomplish this?
A Linux administrator needs to remotely update the contents of the www.comptia.org/contacts URL. Which of the following commands would allow the administrator to download the current contents of the URL before updating?
Which of the following BEST describes containers running on a Linux system?
A networked has been crashing intermittently. A Linux administrator would like to write a shell script that will attempt to ping the server and email an alert if the server fails to respond. The script will later be scheduled via cron job. Which of the following scripts would BEST accomplish this task?
A Linux administrator is testing connectivity to a remote host on a shared terminal. The administrator wants to allow other users to access the terminal while the command is executing. Which of the following commands should the administrator use?
A Linux administrator needs to switch from text mode to GUI. Which of the following runlevels will start the GUI by default?
A junior systems administrator is configuring localization option environment variables. The administrator is given a checklist of tasks with the following requirements: - View current settings of the LC_ALL environment variable only. - Modify the LANG environment variable to US English Unicode. Given this scenario, which of the following should be performed to meet these requirements? (Choose two.)
An administrator needs to change the IP address on a server remotely. After updating the configuration files, a network restart is needed. However, the administrator fears that when the network connection drops, the network restart script will be killed before the new IP address has been set. Which of the following commands would prevent the script from being killed?
A Linux administrator is testing a new web application on a local laptop and consistently shows the following 403 errors in the laptop's logs: The web server starts properly, but an error is generated in the audit log. Which of the following settings should be enabled to prevent this audit message?
Which of the following BEST describes the purpose of the X11 system?