FC0-U51 Online Practice Questions and Answers

Correct Answer: A

Correct Answer: ABE

Correct Answer: BC

Correct Answer: B

Correct Answer: B

Correct Answer: CE

Correct Answer: C

Correct Answer: ACD

The following internal busses are used for expansion cards:

PCI Express

PCI

ISA

What is PCI Express (PCIe)?

PCI Express (PCIe), also known as 3rd Generation I/O (3GIO), is a type of computer bus. It is a new I/O bus technology that has more bandwidth than PCI and AGP slots. It uses two low voltage differential pairs, at 2.5Gb/s in each direction.

It is designed to replace PCI and AGP expansion slots.

The bus is available in several different bus widths: x1, x2, x4, x8, x12, x16, and x32. PCIe is able to transfer data in both directions at a time. PCIe hardware will work on operating systems that support PCI.

What is a PCI bus?

Peripheral Component Interconnect (PCI) is a high-performance, 32-bit or 64-bit bus designed to be used with devices that have high bandwidth requirements, such as the display subsystem.

What is an ISA bus?

Industry Standard Architecture (ISA) is an 8-bit expansion bus that provides an interface from devices on expansion cards to the computer's internal bus. A later version of ISA bus comes with a 16-bit expansion slot.

Answer option B is incorrect. SATA is used for hard disk drive and CD/DVD drives.

What is SATA?

The Serial ATA (SATA) computer bus is a storage-interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives. SATA offers several compelling advantages over the older parallel ATA

(PATA) interface, such as reduced cable-bulk and cost, faster and more efficient data transfer, full duplex, and hot swapping. It is designed to replace the older ATA (AT Attachment) standard (Parallel ATA). All SATA devices support hot

plugging and hot swapping. SATA supports Native Command Queuing (NCQ) for enhanced performance.

Reference: "http://en.wikipedia.org/wiki/Computer_hardware"

Correct Answer: AD

A docking station is a specialized case into which an entire laptop can be inserted. This allows the laptop to connect to desktop I/O devices such as full-sized keyboards, CRT monitors, etc. Docking stations are highly proprietary items that are

designed for use with specific computer models. It is useful for a user who wants to maintain only one computer system and avoid transferring information between two computers. With a docking port and a well-equipped laptop, a user can

get the environment of both a laptop and a desktop computer.

Answer option C is incorrect. A motherboard is a large circuit board found in a computer on which a

CPU is mounted.

Answer option B is incorrect. A workstation is a computer in a network from where a user works.

Correct Answer: AC

Bluetooth is a standard for very low powered and short-range radio connections. As a radio technology, it does not require a line-of-sight connection as an infrared connection does. Bluetooth is used to link Personal Digital Assistant (PDA),

mobile phones, and laptops, and provides them with Internet access via hot spots. It uses the 2.4 Ghz spectrums with a data transfer rate of about 1

Mbps. Bluetooth networks are not permanent as compared to other networks where a central communication point is needed such as a hub or a router. A Bluetooth network can be formed when two Bluetooth devices are within a range of ten

meters, enabling them to communicate directly with each other. This dynamically created network is known as a piconet. A Bluetooth-enabled device can support up to seven other Bluetooth devices in a master-slave relationship; the first

Bluetooth device is the master, and all the other devices are slaves that communicate with the master in one piconet. The maximum transmission range of Bluetooth is around 10 meters.

Answer option D is incorrect. The infrared devices require a line-of-sight connection between devices.

Answer option B is incorrect. The maximum transmission range of Bluetooth is around 10 meters.

Reference: "http://www.bluetooth.com/bluetooth/"