A systems administrator manually added a new library to the server. The administrator wants to rebuild the library cache for immediate use.
Which of the following commands should the systems administrator run to achieve this goal?

A Linux administrator wants to obtain a list of files and subdirectories in the /etc directory that contain the word "services". Once the files and subdirectories are discovered, they should be listed alphabetically in the / var/tmp/foundservicesfile. Which of the following shell scripts will accomplish this task?
#/bin/bash

A Linux administrator installed a new network adapter and temporarily disabled the network service from starting on boot. The partial output of chkconfig is as follows:

Which of the following commands BEST describes how the administrator should re-enable the network service?

A systems administrator needs to install software packages on a server from an Internet-based repository. The server does not have Internet connectivity.
Which of the following can be used to allow the server to connect to the Internet through the systems administrator's desktop?

An administrator needs to generate a list of services that are listening on TCP and/or UDP ports. Which of the following tools should the administrator use?