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 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 to when selecting this projector?

      A. Frame rate

      B. Native resolution

      C. Aspect ratio

      D. Lumens

      93 Which home and office printing technology typically employs a reservoir of ink, contained in a cartridge, as its medium to form images on paper?

      A. Laser

      B. Thermal

      C. Inkjet

      D. Impact

      94 You have been asked to purchase new RAM for three workstations. The workstations call for DDR3–1600 chips. What throughput will these modules support?

      A. 1600MBps

      B. 3200Mbps

      C. 6400Mbps

      D. 12800Mbps

      95 Historically, which display type has been preferred to watch fast-motion programs such as sporting events?

      A. Plasma

      B. Fluorescent

      C. LED

      D. LCD

      96 A technician needs to purchase new RAM for a motherboard. The motherboard specifications call for 400MHz DDR2 RAM. Which RAM modules should the technician use?

      A. PC3200

      B. PC6400

      C. PC2–3200

      D. PC2–6400

      97 Identify the connector type shown here in the center.

Photograph showing the square shaped instrument which is black in color and has a open plug point in the middle of it and a marking as SD/MMC at the right corner can be seen.

      A. eSATA

      B. Thunderbolt

      C. PCIe

      D. FireWire

      98 On your network, users want to print easily from their iPads and iPhones. Which service supports this?

      A. Bonjour

      B. AirPrint

      C. TCP printing

      D. Virtual printing

      99 You have a new computer that needs to communicate with other computers on a wireless network. What type of expansion card do you need to install?

      A. WAP

      B. NIC

      C. KVM

      D. WPA

      100 The WUXGA video standard, running at a resolution of 1920×1200, operates at what aspect ratio?

      A. 4:3

      B. 5:4

      C. 16:9

      D. 16:10

      101 When printing, which component is responsible for converting the data being printed into the format that the printer can understand?

      A. PDL

      B. Print driver

      C. Print feeder

      D. Print spooler

      102 Which of the following statements best describes the function of a typical power supply fan?

      A. It cools the power supply by blowing in air from outside the case.

      B. It cools the power supply by blowing hot air out the back of the power supply.

      C. It cools the computer by blowing in air from outside the case, through the power supply, and into the computer.

      D. It cools the computer by pulling hot air from inside the case, through the power supply, and blowing it out the back of the power supply.

      103 A technician needs to install a new hard drive for her client. Access speed is far more important to this client than disk space. What type of hard drive is best suited for this client?

      A. SSD

      B. HDD

      C. SD

      D. BD-R

      104 Serial and Parallel ATA port communication to other components on a motherboard is managed by what?

      A. Northbridge

      B. Southbridge

      C. Frontside bus

      D. Backside bus

      105 What is the maximum data rate for a USB 2.0 connection?

      A. 12Mbps

      B. 480Mbps

      C. 1Gbps

      D. 5Gbps

      106 A technician has been asked to install and configure a RAID 5 array in a working computer that contains one hard drive. How many additional hard drives, at a minimum, does he need to bring with him to the job?

      A. 1

      B. 2

      C. 3

      D. 4

      СКАЧАТЬ

<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.

<p>93</p>

C. Inkjet printers typically use a reservoir of ink (also known as an ink cartridge), a pump, and a nozzle to print images.

<p>94</p>

D. The number designation of 1600 in DDR3–1600 indicates an FSB speed of 1600MHz. To find the throughput, multiply the FSB speed by 8.

<p>95</p>

A. The refresh rate for plasma displays has always been in the 600Hz range, which is 10 times the standard refresh rate of 60Hz, thus ensuring fluid video motion. The result is a display that produces the state of the art in video motion fluidity.

<p>96</p>

C. DDR2, using a 100MHz actual clock, transfers data in four operations per cycle (effective 400MHz FSB) and 8 bytes per operation, for a total of 3200MBps. DDR2 calls these modules PC2–3200.

<p>97</p>

D. The connector pictured is a four-pin FireWire (IEEE1394) port on a laptop.

<p>98</p>

B. iPads and iPhones can automatically detect AirPrint-enabled printers on their local network and print to them without requiring the installation of a driver.

<p>99</p>

B. To communicate with other computers on a network, you need a network interface card (NIC). A wireless access point (WAP) is a wireless hub that many wireless devices communicate with, and WPA is a wireless security standard. A KVM switch allows you to have multiple systems attached to the same keyboard, video, and mouse. Other types of expansion cards (that could use the same slot as a NIC) include video cards, sound cards, storage cards, TV tuner cards, and riser cards.

<p>100</p>

D. A 1920×1200 resolution is a 16:10 aspect ratio. If you take the second number (1200) and multiply it by 1.6, you get 1920.

<p>101</p>

B. The printer driver uses a page-description language (PDL) to convert the data being printed into the format that the printer can understand. The driver also ensures that the printer is ready to print.

<p>102</p>

D. The power supply fan is used to cool the power supply. In addition, this fan draws air from inside the case into vents in the power supply. This pulls hot air through the power supply so that it can be blown out of the case.

<p>103</p>

A. A solid-state drive (SSD) is the best choice for a hard drive, when access speed is the most important characteristic. A conventional magnetic hard disk drive (HDD) is slower. Secure Digital (SD) is a memory card format, not a hard drive type. BD-R is a Blu-ray Disc format.

<p>104</p>

B. The Northbridge is responsible for managing high-speed peripheral communications. The Southbridge manages slower onboard peripherals such as PS/2, parallel, serial, and Serial ATA and Parallel ATA.

<p>105</p>

B. USB 1.0 supports 12Mbps, USB 2.0 supports 480Mbps, and USB 3.0 supports 5Gbps.

<p>106</p>

B. RAID 5 arrays require a minimum of three hard drives. Since the computer already has one, he therefore needs two more.