IT Essential chapter 2 Questions and answers

1.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?
#molex

2.Refer to the exhibit. Which type of port is shown?
#USB

3.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?
#during the POST

4.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

5.Which solution should be used to clean a CPU and a heat sink?
#isopropyl alcohol

6.isopropyl alcohol
#7

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?
#Connect the data cable making sure that the colored stripe on the cable is aligned with pin 1 on the drive and the motherboard.

8.Which type of drive is installed in a 5.25-inch bay?
#optical drive

9.Which additional 4-pin or 6-pin power connector is required by some motherboards?
#AUX

10.A technician is assembling a new computer. Which two components are often easier to install before mounting the motherboard in the case? (Choose two.)
#CPU
#Memory

11.When building a computer, which two components are normally installed in 3.5-inch drive bays? (Choose two.)
#hard drive
#floppy drive

12.Which port is typically used for external wireless NICs?
#USB

13.A technician is installing a new CPU in a ZIF socket on a motherboard. What is the primary way of securing the CPU in place?
#load lever

14.Which action is recommended to prevent the motherboard from contacting the metal base of the case?
#Use standoffs to keep the motherboard above the metal base.

15.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.)
#PCI
#PCIe

16.What is the most reliable way for users to buy the correct RAM to upgrade a computer?
#Check the motherboard manual or manufacturer's website.

17.Refer to the exhibit. Which type of hard drive uses the power connector shown?
#SATA

18.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.

19.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 floppy cable has a twist in the cable.

20.Which internal component of a computer uses a 3-pin power connector?
#fan