A Linux adrmmstrator wants to resolve a remote server name locally. When of the following files should the administrator modify?

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?

A server administrator notices that one of the servers cannot connect to its gateway, which has the IP
10.10.10.1.
Which of the following commands should the administrator execute to determine the default gateway of the server?

Which of the following server roles would MOST likely be found in a PXE boot environment?

A company wants to provide internal identity verification services for networked devices. Which of the following servers should be installed?