CompTIA A+ 220-801 Practice Exam Question 20

CompTIA A+ 220-801 Practice Exam Question 20
Which interface should you use to launch the command IPCONFIG?

A. Command Prompt
B. Control Panel
C. MMC
D. Task Manager

Answers: A, C, and E
ExplanationsFirst make sure that the iPad has a connection to the Internet. Then check that the e-mail settings were entered properly, including port numbers, server names, username/password, and any security settings. Bluetooth can be off while e-mail is being used. GPS tracks where a mobile device is located, and it too can be turned off when accessing e-mail.

CompTIA A+ 220-801 Practice Exam Question 19

CompTIA A+ 220-801 Practice Exam Question 19
To learn more about the DIR command, what would you enter at the command line? (Select the two best answers.)

A. DIR HELP
B. HELP DIR
C. DIR /?
D. DIR ?

Answers: A
Explanations
Use an uninterruptible power supply (UPS) to provide clean power and eliminate the voltage fluctuations—with the stipulation that the printer is not a laser printer! If it’s a laser printer, connect it to its own line conditioner. That is because of the load the laser printer puts on the device it plugs into. The question did not specify that this was a laser printer, and most friends of mine have inkjets. It’s not outside the realm of possibility, but it will be less likely, and that’s what you have to assume when taking the exam. As for the incorrect answers: a multimeter is what you would have used to figure out that the AC outlet was providing dirty power. A surge protector will not condition the voltage that is coming from the AC outlet; it will only protect against surges and spikes. A gas generator is a ridiculous option that would actually work in this scenario. However, it is not wise to keep a gas generator in the house; plus it will cost the friend more in money and maintenance as compared to a UPS.

CompTIA A+ 220-801 Practice Exam Question 18

CompTIA A+ 220-801 Practice Exam Question 18
Which of the following commands creates a new directory in the Windows Command Prompt?

A. CD
B. MD
C. RD
D. SD

Answers: B and D
ExplanationsThe share-level permissions must first be set to enable access to the user. Then the NTFS file-level “user” permissions must also be set; these take precedence over share-level, unless the share-level access is set to deny. Certificates are normally used in Internet or VPN sessions. Local user access is somewhat vague but doesn’t apply here because when a user connects to a shared resource, that person does so over the network to a remote computer.

CompTIA A+ 220-801 Practice Exam Question 17

CompTIA A+ 220-801 Practice Exam Question 17
Which user account permissions are needed to install device drivers on Windows Vista?

A. User
B. Guest
C. Administrator
D. Power user

Answers: A
ExplanationsThe TV tuner is used to enable the Live TV option in Windows 7 Media Center. This is usually the toughest part to configure on an HTPC. This is due to cable company regulations. However, TV tuners are also becoming more popular when used with over-the-air signals including HD, as long as you are within close proximity to a metropolitan area. A modem is used to make dial-up connections to the Internet.Video cards display video signal to a monitor or TV; often, HTPCs will have a video card with an HDMI output. The network adapter (also known as a network card or NIC) is used to connect to the LAN.

CompTIA A+ 220-801 Practice Exam Question 16

CompTIA A+ 220-801 Practice Exam Question 16
Where is the Windows Update feature located in Windows?

A. Start > All Programs > Accessories
B. Start > All Programs
C. Start > All Programs > Control Panel
D. Start > All Programs > Administrative Tools

Answers: D
Explanationstracert (short for trace route) can show the entire path between you and a final destination, displaying every router (or hop) in between. A similar command that gives slightly less information is pathping. ipconfig displays basic information about your network connection. ping tests your network connection against other hosts. nslookup enables you to look up name servers and run several commands when connected in the NSLOOKUP shell, thereby allowing you to configure and modify a name server.

CompTIA A+ 220-801 Practice Exam Question 15

CompTIA A+ 220-801 Practice Exam Question 15
Where would you go to start, stop, or restart services?

A. Computer Management
B. Task Manager
C. Performance Monitor
D. MMC

Answers: B
Explanations
The PC air intakes are probably clogged with cement dust. This will stop fresh, cool air from entering the PC and cause the CPU to overheat. That’s why the system won’t reboot immediately because the CPU needs some time to cool down. You should install a filter in front of the PC air intake and instruct the customer to clean the filter often. While you are working on the computer, you should clean out the inside of the system and vacuum out the exhaust of the power supply (without opening the power supply of course). If the PC had a virus, that might cause it to lock up or shut down, but you would be able to reboot the computer right away. Plus, there would probably be other indicators of a virus. The CPU heat sink could be an issue and could cause the same results, but it is less likely. Companies often buy computers from popular manufacturers such as Dell and HP; these computer manufacturers spend a lot of time designing their heat sink/fan combinations to work with the CPU. If the power supply was underrated, it would cause intermittent shutdowns, but not lockups. Nothing in the scenario would lead you to believe that the computer uses so many powerful components as to make the power supply underrated.

CompTIA A+ 220-801 Practice Exam Question 14

CompTIA A+ 220-801 Practice Exam Question 14
Which tool enables you to find out how much memory a particular application is using?

A. Msconfig
B. Task Manager
C. Chkdsk
D. System Information

Answers: C
Explanations
Adding the port number and name of service to the Windows Firewall Exceptions list is the correct answer. But I’m going to pontificate more as I usually do. Uninstalling and reinstalling the SP will not help this particular situation. By default, any Windows OS after and including Windows XP SP2 enables the Windows Firewall automatically and won’t allow inbound connections from the server to the network application. Therefore, you need to make an “exception.” You can access this in Windows XP by going to Local Area Connection Properties > Advanced tab. In Windows 7/Vista, use the Windows Firewall with Advanced Security: Start > All Programs > Administrative Tools. If you decide to add a port, you need to know the port number of the application. For example, RealVNC is normally port 5900 for incoming connections.