CompTIA A+ Practice Tests. Docter Quentin. Читать онлайн. Newlib. NEWLIB.NET
NEWLIB.NET

CompTIA A+ Practice Tests. Docter Quentin

Читать онлайн.

Автор: Docter Quentin
Издательство: John Wiley & Sons Limited
Серия:
Жанр произведения: Зарубежная образовательная литература
Год издания: 0
isbn: 9781119372677
Скачать книгу
target="_blank" rel="nofollow" href="#n148" type="note">148 Which of the following statements accurately explains what happens during the exposing step in the laser printer printing process?

      A. A laser reduces areas of the drum from a strong negative charge to a slight positive charge.

      B. A laser reduces areas of the drum from a strong negative charge to a slight negative charge.

      C. A laser increases areas of the drum from a slight negative charge to a strong negative charge.

      D. A laser increases areas of the drum from a slight positive charge to a strong positive charge.

      149 Which of the following is the defining characteristic of a passive cooling system for a CPU?

      A. It uses water.

      B. It uses heat pipes.

      C. It uses liquid nitrogen or helium.

      D. It does not require a fan or power.

      150 You have an older laptop with a CD burner in it. What is the approximate capacity of the CDs you will be able to create with this device?

      A. 350MB

      B. 700MB

      C. 1.4GB

      D. 4.7GB

      151 Which of the following system settings are configurable in the BIOS? (Choose two.)

      A. Date and time

      B. Enabling and disabling services

      C. Enabling and disabling devices

      D. System cooling fan speeds

      152 64-bit SODIMM modules come in which pin configurations? (Choose two.)

      A. 184-pin

      B. 200-pin

      C. 204-pin

      D. 240-pin

      153 Which level of cache is typically the smallest and closest to the processor die in a computer?

      A. L1

      B. L2

      C. L3

      D. L4

      154 Which computer component gets power from the connector shown here?

Photograph showing the cord with number of cable wires connected behind it and at other end it is been held together by a flat, square shaped, transparent plastic material.

      A. Motherboard

      B. Hard drive

      C. Expansion card

      D. Secondary case fan

      155 Which of the following are types of CPU sockets? (Choose two.)

      A. LGA

      B. CGA

      C. IGA

      D. PGA

      156 You just purchased several used computers from another company. They came with no documentation. When looking at the RAM, you see a sticker that says PC3–10600. What is the FSB speed of this computer?

      A. 667MHz

      B. 1066MHz

      C. 1333MHz

      D. 1600MHz

      157 Your engineering team is creating a product prototype that requires a video display. They need the display to be flexible to wrap somewhat around the prototype. What type of technology should they use?

      A. LED

      B. LCD

      C. OLED

      D. Plasma

      158 Your office has an inkjet printer, and the manager asks if it can be upgraded to print on both sides of the paper. What type of device can add this functionality?

      A. Flipping assembly

      B. Dual paper feed assembly

      C. Duplexing assembly

      D. Rear paper feed assembly

      159 Which component in a laser printer is responsible for converting AC current into usable energy for the logic circuitry and motors?

      A. LVPS

      B. HVPS

      C. DCPS

      D. ACPS

      160 What types of RAM modules are shown here, from top to bottom?

Photograph shows two rectangular circuit boards in green color with its bottom edge in gold color, each metal piece is divided into eight equal boxes with black markings inside it.

      A. DDR and DDR2

      B. DDR2 and DDR

      C. DDR2 and DDR3

      D. DDR3 and DDR2

      161 The Acme company has a laser printer in its Chicago office that has been used for three months. A technician needs to ship the printer to the Detroit office for use there. What, if any, preparations should be made for the toner cartridge?

      A. No preparations are needed for the toner cartridge before shipping.

      B. Insert a toner blocker into the toner cartridge before shipping.

      C. Seal the toner cartridge with tape before shipping.

      D. Remove the toner cartridge from the printer before shipping.

      162 You have been asked to implement an external backup solution for a small company. When considering tape backup solutions, which standard provides the best storage capacity?

      A. QIC

      B. DLT

      C. DAT

      D. LTO

      163 A client wants you to upgrade his desktop computer to have two video cards. You want to be sure that his computer can support the extra adapter. What type of open internal expansion slot should you look for?

      A. PCIe

      B. ISA

      C. VGA

      D. DVI

      164 Which step immediately follows the fusing step in the laser printer imaging process?

      A. Processing

      B. Transferring

      C. Exposing

      D. Cleaning

      165 Which of the following are services created by Apple to allow for the automatic discovery of printers on local networks? (Choose two.)

      A. Bonjour

      B. AirPrint

      C. TCP printing

      D. Virtual printing

      166 After installing a new print cartridge in an inkjet printer, what process must be run before printing to the device?

      A. Degaussing

      B.

Скачать книгу
<p>149</p>

D. Passive cooling systems come in a variety of models, and some are very effective. The defining characteristic is that they do not use a fan or require a power source.

<p>150</p>

B. Compact discs have a capacity of approximately 700MB. Other CD standards support capacities of 650MB, 800MB, and 900MB.

<p>151</p>

A, C. The BIOS configures many hardware components and settings, such as system date and time, boot sequence, enabling and disabling devices, clock speeds, virtualization support, and BIOS security.

<p>152</p>

B, C. 64-bit SODIMMs come in 144-pin SDR, 200-pin DDR and DDR2, and 204-pin DDR3 varieties. DDR DIMMs have 184 pins, and DDR2 and DDR3 DIMMS have 240 pins.

<p>153</p>

A. The typical increasing order of capacity and distance from the processor die is L1 cache, L2 cache, L3 cache, RAM, and HDD/SSD. Currently, there is no L4 cache.

<p>154</p>

A. The picture shows a 20-pin ATX connector, which provides the motherboard with power.

<p>155</p>

A, D. A pin grid array (PGA) socket has holes to receive the pins that are on the CPU. The land grid array (LGA) is a newer technology that places the delicate pins on the motherboard instead of on the CPU.

<p>156</p>

C. To calculate the FSB speed from the RAM module name, divide by 8. In this case, that makes the FSB 1333MHz (accounting for a bit of rounding).

<p>157</p>

C. Organic light-emitting diode (OLED) displays can be made to be flexible, whereas other displays cannot.

<p>158</p>

C. A duplexing assembly is used for two-sided printing. After the first page is printed, it’s fed into the duplexing assembly, turned over, and fed back into the paper feed assembly.

<p>159</p>

C. The printer’s logic circuitry and motors require low voltages, between +5VDC and +24VDC. The DC power supply (DCPS) converts house current into three voltages: +5VDC and –5VDC for the logic circuitry and +24VDC for the paper-transport motors. This component also runs the fan that cools the internal components of the printer.

<p>160</p>

D. The top module is DDR3, and the bottom one is DDR2. Both have 240 pins and a single keying notch. The DDR3 notch is off-center.

<p>161</p>

D. Never ship a printer anywhere with a toner cartridge installed! The jostling that happens during shipping could cause toner to spill out of the cartridge and all over the inside of the printer. Remove the toner cartridge first. You can put it in a sealed, airtight bag to ship if needed.

<p>162</p>

D. Linear Tape-Open is the newest and highest-capacity tape storage technology. LTO 7, released in 2015, has an uncompressed capacity of 6TB per tape. LTO 6 had an uncompressed capacity of 2.5TB. QIC tapes can often store around 1GB. DLT can store up to 800GB, and DAT can store up to 300GB.

<p>163</p>

A. Most internal video adapters today are PCIe cards. You might still find older PCI or AGP cards on the market as well. ISA is a legacy expansion slot type not used today. VGA and DVI are types of monitor connectors but not expansion slot types.

<p>164</p>

D. The order of steps is processing, charging, exposing, developing, transferring, fusing, and cleaning.

<p>165</p>

A, B. Apple created Bonjour and AirPrint.

<p>166</p>

D. Before you print to an inkjet printer, you must ensure that the device is calibrated. Calibration is the process by which a device is brought within functional specifications. For example, inkjet printers need their print heads aligned so that they print evenly and don’t print funny-looking letters and unevenly spaced lines.