Computer Knowledge Set 7

Computer Knowledge Set 7

1.     The PC(personal computer) and the Apple Macintosh are examples of two different

A.    Platforms

B.     Applications

C.     Programs

D.    Storage devices

Ans: A

2.     Apple Macintosh(Macs) and PCs use different _________to process data and different operating systems.

A.    languages

B.     methods

C.     CPUs

D.    Storage devices

Ans: C

3.     Smaller and less expensive PC-based servers are replacing _______in many businesses

A.    Supercomputers

B.     Clients

C.     Laptops

D.    Mainframes

Ans: D

4.     _________are specially designed computers that perform complex calculations extremely rapidly.

A.    Servers

B.     Supercomputers

C.     Laptops

D.    Mainframes

Ans:B

5.     The difference between people with access to computers and the internet and those without this access is known as

A.    Digital divide

B.     Internet divide

C.     Web divide

D.    Broadband divide

Ans:A

6.     A byte can hold one _______of data.

A.    Bit

B.     Binary digit

C.     Character

D.    Kilobyte

Ans: C

7.     A(n) _________system is a small,wireless handheld computer that scans an item’s tag and pulls up the current price(and any special offers) as you shop.

A.    PSS

B.     POS

C.     Inventory

D.    Data mining

Ans: A

8.     The ability to read and recover deleted or damaged files from a criminal’s computer is an example of a law enforcement speciality called:

A.    Robotics

B.     Computer forensics

C.     Simulation

D.    Animation

Ans: B

9.     ______tags,when placed on an animal,can be used to record and track in a database all of the animal’s movements.

A.    POS

B.     RFID

C.     PPS

D.    GPS

Ans:B

10.            Surgeons can perform delicate operations by manipulating devices through computers instead of manually.This technology is known as 

A.    Robotics

B.     Computer forensics

C.     Simulation

D.    Forecasting

Ans:A

11.             __________is the science that attempts to produce machines that display the same type of intelligence that humans do .

A.    Nanoscience

B.     Nanotechnology

C.     Simulation

D.    Artificial intelligence(AI)

Ans:D

12.            A remote batch-processing operation in which data is solely input to a central computer would require

A.    Telegraph line

B.     Simplex lines

C.     Mixed bad channel

D.    All of the above

Ans:B

13.            A band is always equivalent to

A.    A byte

B.     A bit

C.     100 bits

D.    None of the above

Ans:D

14.            The loss in signal power as light travels down the fiber is called

A.    Attenuation

B.     Propagation

C.     Scattering

D.    Interruption

Ans:A

15.            Communication circuits that transmits data in both directions but not at the same time are operating in

A.    A simplex mode

B.     A half duplex mode

C.     A full duplex mode

D.    An asynchronous mode

Ans.B

16.            An example of a medium speed, switched communications service is

A.    Series 1000

B.     Data phone 50

C.     DDD

D.    All of the above

Ans.C

17.            In communication satellite, multiple repeaters are known as

A.    Detector

B.     Modulator

C.     Stations

D.    Transponders

Ans.D

18.            While transmitting odd-parity coded symbols, the no. Of zeros in each symbol is

A.    Odd

B.     Even

C.     A and B both

D.    Unknown

Ans:D

19.            Data communications monitors available on the software marked include

A.    ENVIRON/1

B.     TOTAL

C.     BPL

D.    Telenet

Ans:A

20.            An example of an analog communication method is

A.    Laser beam

B.     Microwave

C.     Voice grade telephone line

D.    All of the above

Ans.D