CompTIA A+ Practice Tests. Docter Quentin
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Название: CompTIA A+ Practice Tests

Автор: Docter Quentin

Издательство: John Wiley & Sons Limited

Жанр: Зарубежная образовательная литература

Серия:

isbn: 9781119372677

isbn:

СКАЧАТЬ The RAM will work if only one module is installed, but only at half of its rated speed.

      D. The RAM will work if only one module is installed.

      31 A single lane of PCIe 4.0 operates at what data rate?

      A. 250MBps

      B. 500MBps

      C. 1GBps

      D. 2GBps

      32 A technician needs to replace a failed power supply in a desktop computer. When choosing a replacement power supply, which two specifications are most important to consider? (Choose two.)

      A. Wattage

      B. Dual rail

      C. Dual voltage options

      D. Number of connectors

      33 What is an advantage of using double-sided memory over single-sided memory?

      A. It allows the memory to operate twice as fast.

      B. It allows the CPU to access twice as much RAM at one time.

      C. It’s required for use in dual-channel motherboards.

      D. It allows for twice as much memory to be used in the same amount of space.

      34 You need to replace the magnetic hard drive in your manager’s laptop. She wants a high-speed, high-capacity drive. What are the most common issues associated with her request? (Choose two.)

      A. Increased battery usage

      B. Increased heat production

      C. Decreased component lifespan

      D. Decreased space for other peripherals

      35 What are the two speeds at which PCI expansion buses can operate in desktop computers? (Choose two.)

      A. 33MHz

      B. 66MHz

      C. 133MHz

      D. 266MHz

      36 A designer from the corporate office is visiting your field office. He tries to print from his MacBook Pro to a networked printer, but it does not work. Local users in the office are able to print to the device using their Windows 8 computers. What would most likely solve the problem?

      A. Select the Enable Mac Printing option in the print server configuration settings.

      B. Select the Enable Bonjour option in the print server configuration settings.

      C. Install a Mac printer driver on the print server.

      D. Stop and restart the print spooler service.

      37 The users on your network in the Human Resources department often have sensitive materials shown on their computer screens. What is their best option to dramatically limit the viewing angle of their monitors?

      A. Lower the brightness setting.

      B. Lower the contrast setting.

      C. Install an antiglare filter.

      D. Install a privacy filter.

      38 Identify the peripheral connector shown here.

Photograph shows a square shaped cord with its one end showing cable and other is opened, which is narrow and protruding with combination of metal and white color fiber materials inside it.

      A. USB Type A

      B. USB Type B

      C. USB Standard mini-B

      D. Thunderbolt

      39 You have an OLED monitor that you just plugged into a desktop computer. One of your co-workers changes the resolution from 1920×1080 to 1920×1200, but then the image looks highly distorted. What is the most likely cause of this?

      A. The video driver does not support 1920×1200 resolution.

      B. The monitor has a native resolution of 1920×1080.

      C. The video adapter has a native resolution of 1920×1080.

      D. The monitor is plugged into the wrong monitor interface to support the new resolution.

      40 Which of the following are advantages of using a CPU liquid cooling system over an air-based system? (Choose two.)

      A. Easier to install and maintain

      B. More efficient

      C. Quieter

      D. Safer for internal components

      41 You need to perform preventive maintenance on an impact printer. What are two areas you should examine that you would not need to on most inkjet printers? (Choose two.)

      A. Ink cartridges

      B. Output tray

      C. Print head

      D. Tractor feed mechanism

      42 Which expansion bus technology uses lanes, which are switched point-to-point signal paths between two components?

      A. PCI

      B. PCI-X

      C. PCIe

      D. miniPCI

      43 You are installing new computers in a machine shop. The computers on the shop floor don’t need to run local applications or have their own hard drives, but they do need to connect to the shop’s server. What type of custom configuration should you recommend?

      A. Thin client

      B. Thick client

      C. Virtualization workstation

      D. CAD/CAM workstation

      44 Which PC component reboots the computer from a cold startup point without removing power from the components?

      A. Power button

      B. Suspend button

      C. СКАЧАТЬ

<p>31</p>

D. There are four major versions of PCIe currently specified: 1.x, 2.x, 3.0, and 4.0. For the four versions, a single omnidirectional lane operates at a data rate of 250MBps, 500MBps, approximately 1GBps, and roughly 2GBps, respectively.

<p>32</p>

A, D. When installing or replacing a power supply, always make sure that it has enough wattage to power the components in the computer. In addition, it should have enough connectors to connect to all the components that require their own power. Dual rail and dual voltage are optional features.

<p>33</p>

D. Double-sided memory has chips on both sides of the RAM module instead of just on one side. It allows for doubling the amount of RAM on the module, so you get twice as much memory on one stick.

<p>34</p>

A, B. Faster hard drives transfer more data than slower hard drives, but there is no specific correlation between hard drive speed and its lifespan. The downsides to faster hard drives can be increased battery usage and heat production.

<p>35</p>

A, B. PCI expansion buses operate at 33MHz or 66MHz (version 2.1) over a 32-bit (4-byte) channel, resulting in data rates of 133MBps and 266MBps, respectively, with 133MBps being the most common, server architectures excluded.

<p>36</p>

C. Print servers need to have the appropriate drivers for all operating systems that will be clients. It’s possible that this print server does not have the Mac driver installed.

<p>37</p>

D. A privacy filter is a panel that fits over the front of a display and, through a polarization affect, intentionally limits the viewing angle of the monitor.

<p>38</p>

B. The connector shown is USB Type B. It will plug into the USB peripheral device and is commonly used by printers.

<p>39</p>

B. Most digital monitors have a native resolution, which is a single, fixed resolution that they support. Attempting to change the resolution may result in distorted images, or the image may not display at all.

<p>40</p>

B, C. Liquid cooling systems are generally quieter than air-based systems that use fans, and they are more efficient at cooling the processor. However, they are more complex to install, and if the liquid were to leak out, that could cause damage to internal components.

<p>41</p>

C, D. Impact printers create images by impacting the paper, which can wear down the print head. Always check that. Also, impact printers most often use tractor feed mechanisms to load the paper, and they can wear down as well.

<p>42</p>

C. PCIe uses lanes. Each lane between any two intercommunicating devices comprises a separate pair of wires for both directions of traffic, which dramatically increases speed.

<p>43</p>

A. A thin client is any machine that divests itself of all or most local storage and varying levels of RAM and processing power without necessarily giving up all ability to process instructions and data.

<p>44</p>

C. The reset button, usually located on the front or top panel, allows a user to reboot the computer from a cold startup point without removing power from the components. This can be particularly helpful for dealing with software lockups.