Chapt 1 Flashcards
Which computer component contains all the circuitry necessary for other components or devices to communicate with one another?
Motherboard CPU RAM Expansion bus
Motherboard
You are told by a technician over the phone that you need to bring replacement DDR4 SDRAM memory. What type of packaging is used for DDR4 SDRAM memory?
224-pin DIMM 240-pin DIMM 288-pin DIMM 296-pin DIMM
288-pin DIMM
You need to replace memory in a desktop PC and go to purchase RAM. When you are at the store, you need to find the appropriate type of memory. What memory chips would you find on a stick of PC3-16000?
DDR-2000 DDR3-2000 DDR3-1600 PC3-2000
DDR3-2000
A client wants you to build a new PC for her, with a smaller case and lower power requirements. When selecting a motherboard, which form factor should you choose for a smaller size and lower power consumption?
ATX, AT, DTX, ITX
ITX
A motherboard failed on a desktop PC with an Intel Core i5-10600K processor. When you are looking for a replacement motherboard, which CPU socket does it need to have?
LGA 1366 LGA 1150 LGA 1200 LGA 1700
LGA 1200
You have just replaced a processor in a computer and now need to add a cooling mechanism. What should you use to attach the cooling system to the processor?
Heat sink Thermal paste Fan Superglue
thermal paste is used to attach heat sinks and fans to processors. A heat sink usually gets attached to the processor using thermal paste, and then the fan is attached to the heat sink. Superglue would make it adhere, but it does not transfer heat properly—it would likely melt and cause a mess and processor failure.
A technician asks you how to get a computer’s processor to run faster than it currently does. What are they trying to achieve?
Hyper-Threading Overclocking Virtualization Multicore support
Overclocking is when someone sets the speed of the processor to run faster than it was rated for. While overclocking can make a computer faster, it can also cause the processor to overheat, and it voids the warranty. Hyper‐threading allows for a processor core to handle multiple processes simultaneously. Virtualization is when you create multiple virtual machines on a computer. Multicore means that the processor has more than one core—it’s not a configurable option.
You are assembling a new computer and are looking at new cooling systems. Which of the following cooling systems requires the use of a pump?
Liquid Thermal paste Heat sink Heat sink plus fan
Liquid cooling systems require a reservoir of liquid and a pump to circulate the liquid. It’s possible that the system could malfunction, causing a mess inside the computer. Thermal paste is used to adhere a heat sink to a processor. Heat sinks and fans do not use pumps.
Which of the following types of processors will likely generally be preferred for mobile devices?
x64 x86 ARM LGA
ARM processors generate less heat than do x64/x86 CISC processors and are therefore better options for mobile devices. LGA is a type of CPU socket.
You press the front power button on a computer and the system boots. Later, you press it briefly and the system hibernates. When you press it again, the system resumes. You press and hold the button and the system shuts down. What is this feature called?
Programmable power Soft power Relay power Hot power
Soft power is the feature whereby the front power button acts as a relay to initiate various system power changes, depending on the duration that the button is held. Programmable power, relay power, and hot power are not valid power options.
You are training new technicians to install RAM and pointing out differences between packages. Which of the following are the numbers of pins that can be found on DIMM modules used in desktop motherboards? (Choose two.)
180, 184, 200, 204, 232, 240
184 and 240. DIMMs used in desktop motherboard applications have one of four possible pin counts. SDR SDRAM is implemented on 168‐pin modules. DDR SDRAM is implemented on 184‐pin modules. DDR2 and DDR3 are implemented on 240‐pin modules with different keying, and DDR4 and DDR5 DIMMs have 288 pins but different keying. Older dual‐channel DIMM modules have 232 pins. Modules with 200 and 204 pins are used in the SODIMM line, and there are no modules with 180 pins.
You are installing a new computer, and the user wants to use virtualization. Which hardware components need to support virtual technology for this to work properly? (Choose two.)
RAM Motherboard CPU BIOS
CPU and BIOS. For virtualization to work, both the CPU and BIOS need to support it. The operating system does as well. Virtualization support may need to be manually enabled in the BIOS. RAM does not need to support virtualization, and neither does the motherboard (except for the BIOS).
You find out that a disgruntled ex-employee’s computer has a boot password that must be entered before the operating system is ever loaded. There is also a password preventing your access to the BIOS utility. Which of the following motherboard components can most likely be used to return the computer to a state that will allow you to boot the system without knowing the password?
Cable header Power reset connector Toggle switch Jumper
jumper. Most motherboards have a jumper or similar momentary closure mechanism that will allow you to clear the CMOS memory of any user settings and cause the BIOS to use factory defaults, including no user or supervisor passwords.
Your Core i5 fan has a 4-pin connector, but your motherboard only has a single 3-pin header with the CPU_FAN label. Which of the following will be the easiest solution to get the necessary cooling for your CPU?
Plug the 4-pin connector into the 3-pin header. Buy a 4-pin to 3-pin adapter. Leave the plug disconnected and use only the heat sink. Add an extra chassis fan.
Plug the 4-pin connector into the 3-pin header.
The easiest solution that works to cool your CPU is to connect the four‐pin connector into the three‐pin header. The missing pin allows you to control the speed of the fan. Without it, the fan will run at top speed, which is fine, albeit a little noisier. There is no four‐pin to three‐pin power adapter. The heat sink alone should not be relied upon for proper cooling of modern CPUs, and an extra chassis fan isn’t designed to specifically help cool the CPU.
You are installing a new video card into a PCIe slot. What is the combined total throughput of a PCIe 2.0 x16 slot?
500 MBps, 1 GBps, 4 GBps, 8GBps, 16 GBps, 32 GBps, 64 GBps
16GBps. The PCIe 1.1 specification provided 250 Mbps of throughput per lane per direction. With the 2.x versions of PCIe, this rate was doubled to 500 Mbps. As a result, each v2.0 lane is capable of a combined 1 Gbps. An x16 slot consists of 16 lanes, for a total bidirectional throughput of 16 Gbps.
Which of the following allows you to perform the most complete restart of the computer without removing power?
Start ➢ Restart Start ➢ Hibernate Reset button Power button
The reset button causes the computer to return to nearly the same point it is in when you power it on, but without the need for power cycling. Using Restart in the Start menu does not reboot as deeply as the reset button. Hibernation is a power state that completely removes power after saving the contents of RAM to the hard drive; pressing the power button is required to resume the session in the same manner as starting the computer after a complete shutdown. The power button cannot be used as a method of restarting the system.
You have just found out that a new UEFI upgrade exists for your computer, and you obtain a copy on a flash drive to install it. Which of the following is most helpful when flashing the UEFI on a desktop computer system?
DVD-ROM Uninterruptable power supply Internet connection Windows administrator password
Uninterruptable power supply. None of the options are required, but a UPS is by far the most helpful among the answers in that loss of power during this procedure can range from annoying to devastating.
The 32 GB of DDR4 memory has failed in a client’s desktop computer. The client requests that you upgrade the system for better performance when replacing the RAM. Which of the following is the best option?
Install two new 32 GB DDR4 RAM modules. Install two new 128 GB DDR4 RAM modules. Install two new 32 GB DDR5 RAM modules. Install two new 128 GB DDR5 RAM modules.
Install two new 32 GB DDR4 RAM modules.
The only viable option listed is to install two new 32 GB DDR4 RAM modules. Check the motherboard documentation first to make sure the system will support that much memory, though. DDR4 does not come in modules larger than 64 GB. DDR5 is not compatible with DDR4 motherboards.
You are replacing an HP laptop’s motherboard. Which type of motherboard should you use?
ATX AT One for the specific model mini-ITX
one for the specific model.
Laptop motherboards are usually custom‐built for the specific case. A replacement board should be obtained that is the exact same size as the one that failed.
You need to install a new video card into a desktop computer. What type of expansion slot is preferred today for high-performance graphics adapters?
AGP, PCIe, PCI, SATA
PCIe.
PCIe is the newest and fastest slot for video cards. AGP and PCI are legacy technologies. SATA is for hard drives.
the functional components of a chipset are known as ____ and _______
Northbridge and southbridge
ATX (Advanced Technology eXtended) and ITX (Information Technology eXtended) are examples of what?
motherboard form factors
_________ is an essential software implemented in hardware
firmware
what are the two socket types that require little to no force during CPU installation?
ZIF (Zero Insertion Force) and LGA (Land Grid Array)
a card with expansion slots on it that installs into a motherboard is known as a(n) _________ card.
riser
the e in eSATA stands for _______
external
DDR SDRAM (double data rate synchronous dynamic random access memory) is implemented on a(n) _________-pin module
184
