Hardware Reference
In-Depth Information
Answers to Review Questions
1.
B. A bad power supply would cause both lack of onscreen display and no fan. A bad monitor
would not cause the fans not to spin. A broken fan would not cause the screen to be blank.
The wrong type of network adapter would not cause either of those symptoms.
2.
A. A POST card is a circuit board you insert into an open slot on the motherboard. It
displays a two-digit code to tell you where the system is in the booting process. This is
useful when nothing is displayed onscreen.
3.
C. A black-screen error usually comes from the BIOS, such as a message indicating that the
hard disk is not bootable.
4.
D. A blue-screen STOP error indicates a serious unrecoverable error in Windows. The system
must be rebooted to continue.
5.
B. The Recovery Environment is accessed from the Windows Setup CD for Windows Vista
and higher. The Recovery Console is a command-line interface for system recovery used in
Windows XP.
6.
C. Press F8 to display the Advanced Options menu. The key you press to enter BIOS Setup
depends on the BIOS, but the key you press to access Windows' Advanced Options menu
does not vary.
7.
B.
System Restore replaces the current system confi guration fi les, including Registry fi les,
with a recent backup of them.
8.
C. Run MSCONFIG to access the System Confi guration Utility.
9.
D. Applications set to load at startup appear on the Startup tab.
10.
B. The question-mark icon appears at startup if the Mac can't fi nd a hard disk or can't fi nd
a system folder on the hard disk.
11.
D. Safe Mode loads a minimal set of drivers, so it can sometimes start a computer that will
not start normally. To access it, press F8 while booting, and select it from the Advanced
Options menu.
12.
C. Dramatic slowdown of the computer's operation usually means either RAM or the CPU
is being heavily used.
13.
C. Overheating is the most common cause of complete system lockup, including unresponsive
input devices (keyboard and mouse).
14.
B. Compatibility Mode enables you to select an earlier version of Windows for the system
to emulate when communicating with a certain application.
15.
A. An administrator account can install new applications; a standard user may not be able
to do so. A guest account cannot install applications.
