- 1 IT EssClass Test 2 1 What is the unit used to measure CPU speed? Bits. Bytes. Hertz. Voltage. 2 What is the purpose of a heat sink on a processor? To cool the processor. To ground the processor. To set the speed of the processor. To set the voltage of the processor. 3 The form factor describes the size and shape of a CPU. the size and shape of a RAM. the size and shape of a harddisk. the size and shape of a motherboard. 4 What step should a technician perform first when servicing computer equipment? Turn the power off and remove the power source. Open the case to check for any loose connections. Use a wet cloth to clean the exterior of the equipment. Open the case and disassemble all the removable components. 5 What tool can a technician use to help protect against ESD when installing a video card onto the motherboard? Safety glasses Compressed air Polyester clothing Antistatic wrist strap 6 How much voltage does the yellow wire of a PC power supply provide to the PC components? +5V -5V +12V -12V
- 2 7 What is the black wire of a PC power supply used for? Used to power ISA bus and early PROMS. Used to complete circuit with other voltage. Used to power drive motor, fans, cooling devices and system bus slots. Used to power newer CPUs, some type of system memory and AGP video card. 8 The purpose of the computer power supply is to eliminate spikes in the electricity. eliminate brownouts in the electricity. convert direct-current (DC) power into alternating-current (AC) power. convert alternating-current (AC) power into direct-current (DC) power. 9 DDR is one type of RAM used in computer. What does DDR stand for? Digital Data Rate. Device Data Rate. Double Data Rate. Desktop Data Rate. 10 Which type of memory module will retain its contents even when the computer is powered down? EDO ROM RDRAM SDRAM 11 The purpose of the RAM is to backup data. to provide security for a computer. to increase the bandwidth of a network. to provide a temporary storage for data and programs that are being accessed by the CPU. 12 What type of RAM should a technician use for RIMM memory modules? EDO DDR2 SDRAM RDRAM
- 3 13 Which component is classified as a storage device? CPU. Hard disk. Video adapter card. Sound adapter card. 14 What does SATA stand for? Secure Active Technology Attachment. Serial Advanced Technology Attachment. Segment Analog Technology Attachment. Standard Access Technology Attachment. 15 What is meant by hot swappable devices? Devices that can increase the network bandwidth. Devices that can connect to a wireless access point. Devices that does not need a driver to interface with the computer OS. Devices that can be connected and disconnected from a computer while the computer power is still on. 16 A technician needs an optical media which can be recorded, erased and rerecorded. Which one of the following optical media should he select? CD-R CD-RW DVD+R DVD-ROM 17 CRT is one type of computer monitor. What does CRT stand for? Cathode-ray tube. Computer radio tube. Chip resistance tube. Capacitor resolution tube. 18 What is meant by refresh rate of a monitor? It is the distance between pixels on the screen. It is how often the image is rebuilt per second. It is the total number of colours that can be displayed on the screen. It is the measurement of the difference in intensity of light between the brightest point and the darkest point.
- 4 19 What is the aspect ratio of a monitor with viewing area that is 16 inches wide by 12 inches high? 3:4 4:3 6:11 11:6 20 A technician can use the AGP slot of the motherboard to install video adapter card. sound adapter card. modem adapter card. network interface card. 21 What does CMOS stand for? Card Master Oxide Semiconductor. Cable Media Oxide Semiconductor. Complementary Metal Oxide Semiconductor. Computer Maintenance Oxide Semiconductor. 22 What does BIOS stand for? Best input output server. Bus input output session. Boot input output service. Basic input output system. 23 What is the purpose of Power On Self Test (POST)? To measure the voltage of the computer. To reduce the power usage of the computer. To record the total power used by the computer. To check whether the hardware in the computer is operating correctly. 24 A technician wants to configure the BIOS of a computer which has been installed with Windows XP. At which point must the required key be pressed to start the BIOS setup program? During the POST. Before power on the computer. After Windows XP has booted up. During the Windows XP load process.
- 5 25 Which one of the following devices is an input device? Keyboard Monitor Projector Speaker 26 Which one of the following devices is an output device? Mouse Printer Touch Screen Biometric authentication device 27 Which phase of the laser printing process involves applying toner to the latent image on the drum? Cleaning Developing Fusing Writing 28 Which of the following is one advantage of a network printer as compared to a local printer? Network printer has higher resolutions. Network printer can print more colours. Network printer can be shared by many users. Network printer is easier to install and takes less time to configure. 29 Which path will allow a technician to add a printer in Windows XP? Start All Programs System Tools Add a printer Start Accessories Communication Add a printer Start Control Panel Printers and Faxes Add a printer Start Accessibilities Administrative Tools Add a printer 30 What can a technician do to reduce memory overloading errors when large print jobs are sent to the printer? Reinstall the print driver. Add more RAM to the printer. Change to a networking operating system. Change to a newer version of the firmware.