Hardware (5) Flashcards
You have been asked to purchase new RAM for three workstations. The workstations call for DDR3 1600 chips. What throughput will these modules support?
3200 Mbps
6400 Mbps
12800 Mbps
12800 Mbps
The number designation of 1600 in DDR3–1600 indicates an FSB speed of 1600 MHz. To find the throughput, multiply the FSB speed by 8
Historically, which display type has been preferred to watch fast-motion programs such as sporting events?
Plasma
Fluorescent
LCD
Plasma
The refresh rate for plasma displays has always been in the 600 Hz range, which is 10 times the standard refresh rate of 60 Hz, thus ensuring fluid video motion. The result is a display that produces the state of the art in video motion fluidity
A technician needs to purchase new RAM for a motherboard. The motherboard specifications call for 400 MHz DDR2 RAM. Which RAM modules should the technician use?
PC3200
PC2-3200
PC2-6400
PC2-3200
DDR2, using a 100 MHz actual clock, transfers data in four operations per cycle (effective 400 MHz FSB) and 8 bytes per operation, for a total of 3200 MBps. DDR2 calls these modules PC2–3200
On your network, users want to print easily from their iPads and iPhones. Which service supports this?
Bonjour
AirPrint
TCP printing
AirPrint
iPads and iPhones can automatically detect AirPrint-enabled printers on their local network and print to them without requiring the installation of a driver
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?
WAP
NIC
KVM
NIC
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
The WUXGA video standard, running at a resolution of 1920x1200, operates at what aspect ratio?
5: 4
16: 9
16: 10
16:10
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
When printing, which component is responsible for converting the data being printed into the format that the printer can understand?
Printer driver
Printer feeder
Printer spooler
Printer driver
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
Which of the following statements best describes the function of a typical power supply fan?
It cools the power supply by blowing in air from outside the case
It cools the power supply by blowing hot air out the back of the power supply
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
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
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
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?
SSD
HHD
BD-R
SSD
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
Serial and Parallel ATA port communication to other components on a motherboard is managed by what?
Northbridge
Southbridge
Frontside bus
Southbridge
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
What is the maximum data rate for a USB 2.0 connection?
12 Mbps
480 Mbps
5 Gbps
480 Mbps
USB 1.0 supports 12 Mbps. In the following standards, USB 2.0 supports 480 Mbps, USB 3.0 supports 5 Gbps, and USB 3.1 Gen 2 supports 10 Gbps
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?
One
Two
Three
Two
RAID-5 arrays require a minimum of three hard drives. Since the computer already has one, he therefore needs two more
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?
Scanner
Digitizer
Biometric device
Biometric device
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
Which CPU architecture term describes a CPU with multiple physical processor dies in the same package?
Multicore
64-bit
Integrated GPU
Multicore
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
Which of the following optical disc standards provides the highest capacity?
DVD-R SS, SL
DVD-R DS, SL
DVD-R SS, DL
DVD-R DS, SL
All are digital video disc (DVD) technologies. A single-sided, single-layer (SS, SL) DVD provides about 4.7 GB of storage. A dual-sided (DS) disc will double that capacity to 9.4 GB. 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 8.5 GB