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CompTIA A+ Practice Tests. Docter Quentin

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Автор: Docter Quentin
Издательство: John Wiley & Sons Limited
Серия:
Жанр произведения: Зарубежная образовательная литература
Год издания: 0
isbn: 9781119372677
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eSATA

      75 A technician is recommending that his company use removable memory cards. Which of the following should he tell his manager?

      A. MiniSD and microSD cards work in a standard SD card slot.

      B. MiniSD cards work in a standard SD slot, but microSD cards do not.

      C. MicroSD cards work in a standard SD slot, but miniSD cards do not.

      D. Neither miniSD nor microSD cards will work in a standard SD slot.

      76 You are purchasing new laptops for your company. When thinking about the monitor quality, which type of backlight will produce better-quality pictures?

      A. LED

      B. OLED

      C. Plasma

      D. Fluorescent

      77 Which component of the motherboard chipset is responsible for managing high-speed peripheral communications?

      A. Northbridge

      B. Southbridge

      C. Eastbridge

      D. Westbridge

      78 A graphical designer in your office needs two monitors to do her work. Which of the following should you install to set up her desktop computer for this configuration?

      A. A video splitter

      B. A second video driver

      C. A second video adapter

      D. A video replicator

      79 Which of the following statements are true regarding buffered memory modules? (Choose two.)

      A. They increase the electrical load placed on the controller.

      B. They decrease the electrical load placed on the controller.

      C. When used, the memory controller communicates in series with the register.

      D. When used, the memory controller communicates in parallel with the memory chips.

      80 You have a desktop computer that is about five years old, with a single-channel memory architecture. You want to upgrade the memory. After checking the documentation, you purchase a higher-capacity RAM module that runs at the required bus speed. After you install it, the new RAM is not recognized, but the old RAM is. The computer store tests the RAM and it’s fine. What should you try next?

      A. Flash the BIOS.

      B. Purchase a second memory module of the same type, and install them as a pair.

      C. Return the memory module and purchase a lower-capacity one.

      D. Replace the motherboard.

      81 A client needs to connect to the Internet using telephone lines. What type of expansion card should you configure in his computer?

      A. USB

      B. Cellular

      C. Modem

      D. NIC

      82 Which of the following types of computer peripherals are considered input and output devices? (Choose two.)

      A. Digitizer

      B. Touch screen

      C. KVM

      D. Printer

      83 You have a motherboard designed to hold DDR3–1600 memory. What will happen if you attempt to install DDR2–667 memory into the motherboard?

      A. It won’t fit.

      B. It will operate at 667MHz.

      C. It will operate at 1133MHz.

      D. It will operate at 1600MHz.

      84 What happens during the transferring step of the laser printer printing process?

      A. The image is transferred to the imaging drum.

      B. The toner is transferred to the imaging drum.

      C. The toner is transferred to the paper.

      D. A strong, uniform negative charge is transferred to the imaging drum.

      85 The set of signal pathways on a motherboard between the CPU and RAM is called what?

      A. Northbridge

      B. Southbridge

      C. Frontside bus

      D. Backside bus

      86 One of your users needs to print several copies of a 20-page document. She wants to ensure that all the pages print in order so she doesn’t have to reorganize the documents later. Which option does she need to set properly in her printer configuration settings?

      A. Duplex

      B. Collate

      C. Page order

      D. Orientation

      87 Which of the following video resolutions is compatible with the 4:3 aspect ratio?

      A. UXGA 1600×1200

      B. ATSC 1920×1080

      C. WUXGA 1920×1200

      D. WQXGA 2560×1600

      88 You upgraded the RAM on your system and are now having boot issues. The manufacturer’s website recommends updating the BIOS. What is the easiest way to do this?

      A. Replace the BIOS chip.

      B. Replace the CMOS battery.

      C. Install a new motherboard.

      D. Flash the BIOS.

      89 A technician needs to install an optical storage device as cheaply as possible. His client needs to store approximately 500MB of data at a time. Which technology is the best solution for this situation?

      A. CD-RW

      B. DVD-RW

      C. DVD-RW DL

      D. BD-RE

      90 A technician needs to install an optical disc system with capacity to burn discs storing about 12GB of data at one time. What is the minimum technology required to get him over this threshold?

      A. DVD-R SS, DL

      B. DVD-R DS, SL

      C. DVD-R DS, DL

      D. BD-R SS, DL

      91 Identify the connector type on the cable shown here.

Photograph shows cord with cable extended at its one end and the other end has round shaped plug point with metal pin at the end of it and other is surrounded by fiber material.

      A. BNC

      B. RCA

      C. MiniDIN

      D. HD15

      92 You are buying a new video projector for the executive conference room. The administrative assistant tells you that the room often has bright sunlight, so the projector needs to be bright. What is the key specification you should pay attention

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<p>75</p>

A. MiniSD and microSD cards are smaller than standard SD memory cards. Adapters are available to allow them to work in standard SD slots.

<p>76</p>

A. There are two backlight technologies for LCD monitors: LED and fluorescent. Of the two, LED produces higher-quality images. OLED and plasma are display technologies, not backlight technologies.

<p>77</p>

A. The Northbridge is responsible for managing high-speed peripheral communications. The Southbridge manages slower onboard peripherals. There is no Eastbridge or Westbridge in a motherboard chipset.

<p>78</p>

C. To use a second monitor on a desktop computer, you need to install a second video adapter or have one video adapter with two monitor interfaces. Laptops often have an external monitor interface and are capable of providing video to the built-in screen and an external monitor at the same time.

<p>79</p>

B, C. Buffered memory modules include specialized chips that act as buffers for signals from the memory controller. By buffering these signals, the electrical load placed on the controller is reduced because the memory controller communicates in series with the register, instead of in parallel with the memory chips. The register performs the parallel communication with the chips.

<p>80</p>

A. That capacity of module might not have been in existence when the motherboard’s chipset was released. Sometimes flashing the BIOS is all that is required.

<p>81</p>

C. A modem allows computers to connect to a remote network (such as an ISP) via telephone lines. Modems were the most common Internet connection method in the 1990s but are uncommon today. NICs are expansion cards for network connections. USB and cellular are not expansion cards. Other types of expansion cards include video cards, sound cards, storage cards, TV tuner cards, and riser cards.

<p>82</p>

B, C. Touch screens, KVM switches, smart TVs, and set-top boxes are capable of both input and output. Digitizers are input devices, and printers are output devices. Multifunctional printers that have a scanner included can be classified as input and output devices, but a plain printer is output only.

<p>83</p>

A. DDR2 and DDR3 memory slots are both keyed, but the keys are in different places. Therefore, the memory will not fit into the slots on the motherboard.

<p>84</p>

C. During the transferring step, the positively charged paper pulls the negatively charged toner from the photosensitive drum at the line of contact between the roller and the paper.

<p>85</p>

C. The communications between the CPU and memory occur over what is known as the frontside bus (FSB), which is just a set of signal pathways connecting the CPU and main memory.

<p>86</p>

B. The user wants to make sure that the collate option is set properly. It will let her select whether she wants it to print pages in order (1, 2, 3.. 1, 2, 3.. and so on) or multiple copies of the same page at once (1, 1, 1.. 2, 2, 2.. and so forth). Other options you can often set up in the printer configuration settings are duplexing (printing on the front and back), orientation (portrait or landscape), and print quality (such as draft or high resolution).

<p>87</p>

A. The term aspect ratio refers to the relationship between the horizontal and vertical pixel counts that a monitor can display. For example, for a display that supports 4:3 ratios, such as 1600×1200, if you divide the first number by 4 and multiply the result by 3, the product is equal to the second number. Additionally, if you divide the first number by the second number, the result is approximately 1.3, the same as 4 ÷ 3.

<p>88</p>

D. Flashing the BIOS is the recommended way to upgrade a BIOS. It involves downloading the new BIOS and flashing software from the manufacturer and installing it on the computer. The worst-case scenario is replacing the motherboard (or in this case, the RAM, since that is what you upgraded).

<p>89</p>

A. CD-RW (re-writable compact disc) will be the least expensive of the optical solutions. In addition, CD-ROMs can store about 700MB to 900MB of data, depending on the standard used. This should be sufficient for the client.

<p>90</p>

C. A DVD-R double-sided dual-layer (DS, DL) will provide 17.1GB of storage. BD-R single-sided dual-layer (SS, DL) will also work in this case, providing 50GB of storage. (BD-R is a one-time recordable Blu-ray disc, and BD-RE is a re-recordable disc. Both have the same capacity.) A DVD-R SS, DL provides about 8.5GB of storage, and DVD-R DS, SL provides about 9.4GB of storage.

<p>91</p>

B. The connector shown is an RCA connector, which is often used for audio or video signals.

<p>92</p>

D. Lumens is the measure of brightness for a projector. For a well-lit business setting, you probably want a projector rated at 5,000–6,000 lumens.