CompTIA A+ Practice Tests. Docter Quentin

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.

      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

      107 You need to increase network security. A consultant suggests that you install a peripheral device to scan user fingerprints as a requirement to log in. What type of device will you install?

      A. Scanner

      B. Digitizer

      C. Biometric device

      D. Touch pad

      108 Which CPU architecture term describes a CPU with multiple physical processor dies in the same package?

      A. Multicore

      B. 64-bit

      C. Integrated GPU

      D. Hyperthreading

      109 Which of the following optical disc standards provides the highest capacity?

      A. DVD-R SS, SL

      B. DVD-R DS, SL

      C. DVD-R SS, DL

      D. DVD+R SS, DL

      110 Your company recently shipped five desktop computers from Germany to the United States. After switching the power cord to an American-style plug, you try to power one on and it doesn’t work. You try the others and none of them power on either. What is the most likely cause?

      A. All of the computers were damaged during shipping.

      B. German power supplies work only with German power cords.

      C. The power supplies won’t work because they expect 50Hz frequency from the wall outlet and the United States standard is 60Hz.

      D. The power supply voltage switch needs to be moved.

      111 What are the dimensions of a mobile-ITX motherboard?

      A. 9.6″ × 9.6″

      B. 6.7″ × 6.7″

      C.

93

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

94

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.

95

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.

96

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.

97

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

98

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.

99

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.

100

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.

101

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.

102

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.

103

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.

104

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.

105

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

106

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

107

C. Any device that measures one or more physical or behavioral features of an organism is considered a biometric device. Biometric devices include fingerprint scanners, retinal and iris scanners, voice recognition devices, facial recognition devices, and others.

108

A. A processor that exhibits a multicore architecture has multiple completely separate processor dies in the same package. The operating system and applications see multiple processors in the same way that they see multiple processors in separate sockets.

109

B. All are digital video disc (DVD) technologies. A single-sided, single-layer (SS, SL) DVD provides about 4.7GB of storage. A dual-sided (DS) disc will double that capacity to 9.4GB. Adding a second layer, or dual-layer (DL), adds more capacity, but the technology does not double the capacity of a single layer. A single-sided, dual-layer (SS, DL) disc has capacity of about 8.5GB.

110

D. Many power supplies have a two-position slider switch called a dual voltage switch. It can be set for 110–120V or 220–240V, depending on what local power specifications are.

111

D. MicroATX motherboards are a 9.6″ square, and mini-ITX motherboards are a 6.7″ square. Pico-ITX motherboards are 3.9″ × 2.8″, and mobile-ITX motherboards are 2.4″ square.