Jawaban IT Essentials Chapter 3 exam( Version 4.1 )

1 Which port is typically used for external wireless NICs?
 *USB


2 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


3 Refer to the exhibit. Which type of port is shown?
 *USB


4 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
 *PCI


5 Which type of drive is installed in a 5.25-inch bay?
 *optical drive


6 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


7 Which internal component of a computer uses a 3-pin power connector?
 *fan


8 Which solution should be used to clean a CPU and a heat sink?
 *isopropyl alcohol


9 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


10 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


11 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.


12 When building a computer, which two components are normally installed in 3.5-inch drive bays? (Choose two.)
 *hard drive
 *optical drive


13 How many pins are in a SATA data cable connector?
 *7


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


15 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.


16 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.


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


18 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.


19 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.


20 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.


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