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 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 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.

CompTIA A+ 220-801 Practice Exam Question 13

CompTIA A+ 220-801 Practice Exam Question 13
What is the minimum requirement of RAM for Windows XP Professional?

A. 64 MB
B. 128 MB
C. 256 MB
D. 32 MB

Answers: B
ExplanationsThe print spooler needs to be restarted on the computer that started the print job or the computer that controls the printer. This can be done in the Services console window or in the Command Prompt with the net stop spooler and net start spooler commands, or anywhere else where services can be started and stopped such as the Task Manager. Okay, that was an easy one, but the real exam will have a couple easy ones thrown in as well. Don’t think too hard when you actually do receive an easier question.

CompTIA A+ 220-801 Practice Exam Question 9

CompTIA A+ 220-801 Practice Exam Question 9
Which file is the boot loader in Windows XP?

A. Ntdetect.com
B. Boot.ini
C. ntldr
D. Ntoskrnl.exe

Answers: C and E
Explanations: If only one computer is connected to the switch, there shouldn’t be much activity. Rapidly blinking LED lights might lead you to believe that the computer’s network card (NIC) or the port on the switch is faulty. However, it could be that the person is sending a lot of data to himself while you are testing the network, but that would be strange and rare. The server doesn’t have anything to do with this, nor does the hard disk.

CompTIA A+ 220-801 Practice Exam Question 4

CompTIA A+ 220-801 Practice Exam Question 4
Where is the Notification Area located in Windows 7?

A. In the System Properties dialog box
B. In the System32 folder
C. On the Taskbar
D. Within the Start menu

Answers: C
Explanations:HKEY_LOCAL_MACHINE is the registry hive that stores information about the programs Windows runs when it starts. The actual hives are stored in \%windir%\System32\Config. But it’s okay to call HKEY_LOCAL_MACHINE and the other HKEYs hives. Most technicians do it, and you might see them referred to that way on the exam as well. The HKEY_LOCAL_MACHINE hive is the one you will access the most often. You can configure advanced settings for TCP/IP, the GUI of the OS, and lots more from here. HKEY_CURRENT_CONFIG contains data that generated when the system boots; nothing is permanently stored. HKEY_USERS stores the information for each user profile. HKEY_CLASSES_ROOT contains information about registered applications and file associations.