A Linux systems administrator needs to set permissions on an application with the following parameters: The owner of the application should be able to read, write, and execute the application.
Members of the group should be able to read and execute the application. Everyone else should not have access to the application.
Which of the following commands would BEST accomplish these tasks?
Correct Answer:D
A junior Linux administrator is installing a new application with CPU architecture requirements that have the following specifications:
x64 bit 3.0GHz speed
Minimum quad core
The administrator wants to leverage existing equipment but is unsure whether the requirements of these systems are adequate. The administrator issues the following command cat/proc/cpuinfo. The output of the command is as follows:
Which of the following is the recommended course of action the administrator should take based on this output?
Correct Answer:A
An administrator is analyzing a Linux server which was recently hacked.
Which of the following will the administrator use to find all unsuccessful login attempts?
Correct Answer:C
A Linux administrator must identify a user with high disk usage. The administrator runs the # du –s /home/* command and gets the following output:
Based on the output, User3 has the largest amount of disk space used. To clean up the file space, the administrator needs to find out more information about the specific files that are using the most disk space.
Which of the following commands will accomplish this task?
Correct Answer:C
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?
Correct Answer:A