Chapter 3 - IT Essentials - PC Hardware & Software

1 Which port is typically used for external wireless NICs? Parallel PS/2 SCSI USB

2 Which action is recommended to prevent the motherboard from ing the metal base of the case? Ensure that the non-conductive side of the case is beneath the motherboard. Use standoffs to keep the motherboard above the metal base. Place a non-conductive barrier between the motherboard and the metal base. Use a self-adhesive non-conductive membrane on the underside of the motherboard.

3 A technician is assembling a new computer. Which two components are often easier to install before mounting the motherboard in the case? (Choose two.) U memory NIC sound card video card

4 Which solution should be used to clean a U and a heat sink? soap and water

rubbing alcohol a diluted ammonia solution isopropyl alcohol

5 When building a computer, which two components are normally installed in 3.5inch drive bays? (Choose two.) hard drive optical drive floppy drive flash drive video card

6 How many pins are in a SATA data cable connector? 7 34 40 80 184

7 A technician is troubleshooting a computer that has a malfunctioning floppy drive. The technician observes that the floppy drive light remains lit constantly. How should the technician attempt to repair the problem? Remove the floppy drive using Add/Remove Hardware. Replace the floppy drive. Connect the data cable making sure that the colored stripe on the cable is aligned with pin 1 on the drive and the motherboard. Change the jumper setting to master for the floppy drive.

8 What is a convenient way that a technician can tell whether a ribbon cable is for an IDE hard drive or a floppy drive? The IDE cable has a colored stripe on one edge. The floppy cable motherboard connector is normally gray. The IDE cable is gray. The floppy cable has a twist in the cable.

9 A technician is installing a new power supply in a computer. Which type of power connector should be used to connect to a floppy drive? Berg Molex 20-pin ATX connector SATA connector

10 A field technician has been asked to install a wireless 802.11g NIC in a computer, but is unsure about the expansion slots available. Which two types of wireless NICs should the technician have available? (Choose two.) PCIe AGP SCSI PCI SATA

12 Which additional 4-pin or 6-pin power connector is required by some motherboards? AUX Berg

Parallel SCSI

13 A technician is installing a new U in a ZIF socket on a motherboard. What is the primary way of securing the U in place? thermal compound antistatic fasteners load lever screws

14 Which type of drive is installed in a 5.25-inch bay? hard drive optical drive floppy drive LS120 drive

15 After a technician has assembled a new computer, it is necessary to configure the BIOS. At which point must a key be pressed to start the BIOS setup program? before the computer is powered on during the Windows load process during the POST after the POST, but before Windows starts to load

16 Refer to the exhibit. Which type of hard drive uses the power connector shown? ATA EIDE

SATA SCSI USB

17 Which internal component of a computer uses a 3-pin power connector? floppy drive hard drive sound card fan

18 What is the most reliable way for s to buy the correct RAM to upgrade a computer? Buy RAM that is the same color as the memory sockets on the motherboard. Ensure that the RAM chip is the same size as the ROM chip. Ensure that the RAM is compatible with the peripherals installed on the motherboard. Check the motherboard manual or manufacturer's website.

19 Refer to the exhibit. Which type of port is shown? FireWire graphics RJ11 RJ45 USB

20 A technician is installing a new power supply in a computer. Which type of power connector should be used to connect to a PATA hard drive? Berg mini-Molex Molex 20-pin ATX connector

21 A technician has just finished assembling a new computer. When the computer is powered up for the first time, the POST discovers a problem. How does the POST indicate the error? It issues a number of short beeps. The LED on the front of the computer case flashes a number of times. It places an error message in the BIOS. It locks the keyboard