A computer continuously performs a spontaneous system reboot. Which of the following may be
the cause?

Fiber optic technology is MOST commonly used for which of the following topologies?

After updating a modem software, a user can no longer connect to the Internet. The BEST way to
return the modem to an operational state would be to use the

To reduce the impact of a blackout, a technician should plug critical computer components into

When connecting a laptop to a power adapter, a technician recognizes that the power adapter is
too hot to touch. The technician should

Two machines on the same network are unable to communicate. Which of the following can be
used to determine whether the router is the problem?

Which of the following can be enabled to determine if a user has unauthorized access to a folder?

Non-critical software upgrades on a companys e-mail server will require that the server be
rebooted. Which of the following actions should be taken?

A technician is sent to a users desk to replace a video card in the users computer. Once the
process is complete, the technician verifies that the computer starts up and the user can log in.
The next day, another technician goes to the users computer to complete the same work order.
Which of the following did the first technician fail to do?

In Windows XP, which of the following files are needed to prepare an emergency bootable disk?