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MCSA/MCSE Self-Paced Training Kit (Exam 70-270): Installing ...

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Objective 3.4 Implement, Manage, and Troubleshoot I/O Devices<br />

23-23<br />

3. You are listening to an audio CD on your desktop computer at work when you realize<br />

that the music might be disturbing your colleagues who are holding a small meeting in<br />

the cubicle next to yours. You turn off the speakers, put on your stereo headphones,<br />

and insert the plug into the jack on the front of the CD-ROM drive, but you hear no<br />

sound. You adjust the volume control on the front of the CD-ROM drive, but still hear<br />

no sound. You turn the speakers back on and can hear the music again.<br />

Why is there no music through your headphones? Choose the correct answer.<br />

A. The CD-ROM drive is defective and must be replaced.<br />

B. Digital audio playback is enabled for your CD-ROM drive.<br />

C. One or more of the volume levels in the Volume Control program is muted or<br />

turned all the way down.<br />

D. The Hardware Sound Acceleration Level is set to No acceleration on the Sound tab<br />

of the DirectX Diagnostics tool.<br />

4. You recently purchased an external USB hard disk. You plug the power cord in and<br />

connect the device to the USB hub that is already connected to your keyboard and<br />

Pocket PC. You insert the installation CD-ROM that came with the device, follow the<br />

prompts to install the device drivers, and reboot the computer when told to do so. You<br />

log back on to the desktop and open Windows Explorer. You do not see the new hard<br />

disk under My Computer where the other local disks are visible. You open Device<br />

Manager, but cannot locate the new hard disk there, either.<br />

Which of the following are appropriate troubleshooting steps? Choose three correct<br />

answers.<br />

A. Install the device into another computer.<br />

B. Disconnect the Pocket PC and mouse.<br />

C. Disconnect the new disk drive from the hub and plug it directly into a USB port on<br />

the computer.<br />

D. Look for USB-related messages in the System event logs using Event Viewer.<br />

E. Verify that USB support is enabled in your computer’s BIOS.<br />

F. Verify that you have not accidentally disabled USB support in Device Manager.<br />

5. Which of the following are ways to install a modem in Windows XP Professional?<br />

Choose three correct answers.<br />

A. Use the Phone And Modem Options program in Control Panel.<br />

B. Use the Add Hardware program in Control Panel.<br />

C. Use the Printer And Faxes program in Control Panel.

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