computer concepts Exam 1 Questions and Answers

A tower case conserves space since it can double as a monitor stand. Answer: True or False - Answer- False A DVI port transmits a video signal and is also called a DB-15 port. Answer: True or False - Answer- False An Ethernet port has a connector called an RJ-45 to connect to a network cable? True or False - Answer- True Functions that used to be provided by expansion cards are more often found as onboard ports today? True or False - Answer- True Hard drives have three connections for cables: one for reading data, one for writing data, and one for power. True or False - Answer- False Which type of port transmits both digital audio and digital video with a single connector? - Answer- HDMI Which of the following is an audio port that connects to an external home theater audio system, providing digital audio output? - Answer- S/PDIF Which of the following is NOT true of a motherboard? - Answer- has a heat sink on the PCIe slots Which of the following is most likely to be installed in a PC, is considered primary storage, and has Windows 7 installed on it? - Answer- hard disk drive Which component probably has a dual-voltage selector switch, and has cables that connect to the motherboard and drives? - Answer- PSU Which is the most common form factor used today for computer cases, power supplies, and motherboards? - Answer- ATX Which power supply connector is the main motherboard power connector on most motherboards today? - Answer- ... If you have a PCI Express Version 2 video card, how many pins will the power connector have if the card requires extra power? - Answer- 8 Which standard provides the best performance for hard drives? - Answer- SATA Which disk drive standard uses an 80-conductor cable? - Answer- EIDE Which unit of electricity measures electrical force and 115 is a common value? - Answer- Volt Which unit of electricity measures is used to measure the power consumption of a device? - Answer- ... Which type of electrical current is used to transmit electricity to our homes and workplaces? - Answer- alternating Which of the following is true about AC electricity? - Answer- ... What type of component holds its charge even after the power is turned off and the device is unplugged? - Answer- capacitor Which of the following is true about an FRU? - Answer- a support technician should know how to replace one Which type of fire extinguisher should you have available in the event of an electrical fire? - Answer- Class C What is a result of two objects with dissimilar electrical charges touching? - Answer- ESD What tool can help discover and report computer errors and conflicts that occur when you first turn on a computer and before the operating system is launched? - Answer- POST card Which general-purpose tool can measure characteristics of electricity in a variety of devices? - Answer- multimeter When disassembling a computer, it's okay to stack circuit boards on top of each other as long as you follow ESD protection rules. True or False - Answer- False Immediately after you unplug the computer from the power outlet, you're safe to begin working inside the case. True or False - Answer- False The motherboard sits on elevated screw holes or spacers to keep it from touching the case. True of False - Answer- True A system always needs the 4-pin auxiliary power connector, and sometimes needs the P1 connector as well. True of False - Answer- True A board with PCIe slots might have a 4-pin Molex power connector to provide additional power to some types of PCIe boards. True of False - Answer- False Which of the following is NOT a good practice when working inside a computer case? - Answer- don't touch a microchip with a magnetized screwdriver Which of the following is the second step in opening the case of a working computer? - Answer- power down the system and unplug it To what should you normally clip the ground bracelet before you work inside the computer case? - Answer- the side of the computer case What do you call a connector on a motherboard that consists of pins that stick up from the board? - Answer- header Which of the following can be described as round plastic or metal pegs that separate the motherboard from the bottom of the case? - Answer- standoff Which of the following represents the correct order in which you should install components into the case after disassembling a computer? - Answer- power supply, drives, motherboard, cards Which of the following is true about installing the motherboard and connecting power? - Answer- a 4-pin power cord supplies supplemental power to the processor Which of the following is NOT a typical connector found on the front panel header? - Answer- SATA controller Which of the following is the Intel maximum degree limit for processors? - Answer- 185 F Which material is a cooler that sits atop the CPU most likely made of? - Answer- copper What is placed between the bottom of the cooler heat sink and the top of the processor that makes an airtight connection between the fan and processor? - Answer- thermal compound Along with the processor, what other device is the highest heat producer in the system? - Answer- video card Under what circumstance is a liquid cooling system most likely used? - Answer- overclocking If your computer is in a dirty, dusty environment, what tool should you use periodically to prevent overheating? - Answer- compressed air What determines the physical size of a power supply and the placement of screw holes? - Answer- form factor Which of the following is true about fans in the computer system? - Answer- large fans tend to run quieter Which technology may require that you purchase a power supply that specifically supports that technology? - Answer- SLI