A+ Practice Quiz: 220-1001 Quiz 28

1. Which of the following is true when the DHCP setting is disabled in a wireless network?

• Wireless clients must use the correct encryption key with its packets.
• Wireless clients must use the correct wireless access point identifier (SSID) to connect to the network.
• Wireless clients must use a static IP address within the correct IP address range to connect to the network.
• Wireless clients with specific MAC addresses are denied access to the network.

2. Which data transmission rate is defined by the IEEE 802.11b wireless standard?

• 150 Mbps
• 54 Mbps
• 10 Mbps
• 11 Mbps

3. Which tool would you use to measure electrical properties such as voltage, amps, and resistance?

• IC extractor
• Mini electronic combination wrench set
• Cable tester
• Multimeter

4. You suspect that the power supply in your desktop PC is failing. You want to use a multimeter to test the power supply. Which multimeter setting should you use?

• Watts
• AC volts
• Ohms
• DC volts

5. Your system crashes at various times: sometimes on startup, sometimes when running a software application, sometime when a certain group of applications is running. You suspect a malfunctioning CPU, but none of the common issues seem to be present.

You have not configured overclocking. There is no overheating. The CPU is seated correctly and locked into its socket. What can you do to definitively determine if the CPU is causing the system crashes?

• Replace the suspect CPU with a known good CPU of the same make and model.
• Downgrade to a CPU that has fewer cores and is less demanding on your system resources.
• Throttle the processor to reduce the operating frequency and minimize power consumption.
• Switch to a comparable CPU from a different manufacturer.

6. Which of the following processor features used is MOST likely to dynamically reduce power consumption based on current operating conditions?

• Overclocking
• Throttling
• Hyper-threading
• Caching

7. Joe is working on a design team that uses a computer-aided design (CAD) system. Joe has been complaining that it takes too long to perform tasks such as panning, rotating, and zooming.

You have been asked to look at Joe's computer and to make any changes required to increase Joe's productivity. Which of the following changes would BEST meet Joe's needs?

• Add a second high-capacity hard drive to Joe's computer.
• Increase the memory for the onboard video embedded in the motherboard.
• Add a very high-end video board.
• Configure Joe's workstation with dual monitors.

8. You need to provide DHCP and file share services to a physical network. These services should be deployed using virtualization. Which type of virtualization should you implement?

• Virtual desktops
• Virtual servers
• Network as a Service (NaaS)
• Virtual networks

9. Which of the following is a benefit of good documentation?

• It reduces hardware maintenance.
• It eliminates the need to troubleshoot problems.
• It saves time and money in troubleshooting problems.
• It reduces hardware replacement requirements.

10. A user reports that her monitor has stopped working. While troubleshooting the issue, you discover a bad video card in the system. You replace the card and connect the monitor cable to the card.

Which of the following actions should you perform NEXT in your troubleshooting strategy?

• Test the solution.
• Explain what you did to fix the problem.
• Document the solution.
• Implement preventative measures.