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COMPUTER SCIENCE

Total questions: 40

Worksheet time: 13mins

Name
Class
Date
1.

Which of the following languages is more suited to a structured program?

a)

PL/1

b)

FORTRAN

c)

BASIC

d)

PASCAL

2.

Which of the following computer language is used for artificial intelligence?

a)

FORTRAN

b)

PROLOG

c)

C

d)

COBOL

3.

Which of the following is the 1's complement of 10?

a)

01

b)

110

c)

11

d)

10

4.

The section of the CPU that selects, interprets and sees to the execution of program instructions

a)

Memory

b)

Register unit

c)

Control unit

d)

ALU

5.

The symbols used in an assembly language are

a)

Codes

b)

Mnemonics

c)

Assembler

d)

All of the above

6.

Which is a non-standard version of a computing language?

a)

PROLOG

b)

APL

c)

Army

d)

PL/1

7.

A datum that indicates some important state in the content of input or output is

a)

Sequence

b)

Sentinel

c)

SIO

d)

Sibling

8.

The 2's complement of a binary no. is obtained by adding.....to its 1's complement.

a)

0

b)

1

c)

10

d)

12

9.

The average time necessary for the correct sector of a disk to arrive at the read write head is _____

a)

Down time

b)

Seek time

c)

Rotational delay

d)

Access time

10.

A number that is used to control the form of another number is known as

a)

Map

b)

Mask

c)

Mamtossa

d)

Marker

11.

A general purpose single-user microcomputer designed to be operated by one person at a time is

a)

Special-purpose computer

b)

KIPS

c)

M

d)

PC

12.

ASCII stands for

a)

American standard code for information interchange

b)

All purpose scientific code for information interchange

c)

American security code for information interchange

d)

American Scientific code for information interchange

13.

Which device of computer operation dispenses with the use of the keyboard?

a)

Joystick

b)

Light pen

c)

Mouse

d)

Touch

14.

The microcomputer, Intel MCS-80 is based on the widely used Intel

a)

8080 microprocessor

b)

8085 microprocessor

c)

8086 microprocessor

d)

8082 microprocessor

15.

A program that is employed in the development, repair or enhancement of other programs is known as

a)

System software

b)

Software tool

c)

Applications program

d)

Utility program

16.

Which is a machine-oriented high-level language for the GEC 4080 series machines

a)

LOGO

b)

SNOBOL

c)

Babbage

d)

ALGOL

17.

Any storage device added to a computer beyond the immediately usable main storage is known as

a)

Floppy disk

b)

Hard disk

c)

Backing store

d)

Punched card

18.

Which output device is used for translating information from a computer into pictorial form on paper

a)

Mouse

b)

Plotter

c)

Touch panel

d)

Card punch

19.

The list of coded instructions is called

a)

Computer program

b)

Algorithm

c)

Flowchart

d)

Utility programs

20.

The tracks on a disk which can be accessed without repositioning the R/W heads is

a)

Surface

b)

Cylinder

c)

Cluster

d)

All of the above

21.

Frames from one LAN can be transmitted to another LAN via the device

a)

Router

b)

Bridge

c)

Repeater

d)

Modem

22.

The probability that a single bit will be in error on a typical public telephone line using 4800

bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error

rate for a communication line using 9-bit frames is approximately equal

a)

0.003

b)

0.009

c)

0.991

d)

0.999

23.

The Internet Control Message Protocol

a)

allows gateways to send error a control messages to other gateways or hosts

b)

provides communication between the Internet Protocol Software on one machine and

the Internet Protocol Software on another

c)

reports error conditions to the original source, the source must relate errors to

individual application programs and take action to correct the problem

d)

All of the above

24.

The term 'duplex' refers to the ability of the data receiving stations to echo back a confirming

message to the sender. In full duplex data transmission, both the sender and the receiver?

a)

cannot talk at once

b)

can receive and send data simultaneously

c)

can send or receive data one at a time

d)

can do one way data transmission only

25.

Avalanche photodiode receivers can detect hits of transmitted data by receiving

a)

100 photons

b)

200 photons

c)

300 photons

d)

400 photons

26.

The synchronous modems are more costly than the asynchronous modems because

a)

they produce large volume of data

b)

they contain clock recovery circuits

c)

they transmit the data with stop and start bits.

d)

they operate with a larger bandwidth

27.

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

would require a:

a)

telegraph line

b)

simplex lines

c)

mixedband channel

d)

All the above

28.

If you get both local and remote echoes, every character you type will appear on the screen

a)

Once

b)

Twice

c)

three times

d)

never

29.

What can greatly reduce TCP/IP configuration problems?

a)

WINS Server

b)

WINS Proxy

c)

DHCP Server

d)

PDC

30.

With an IP address of 100, you currently have 80 subnets. What subnet mask should you use

to maximize the number of available hosts?

a)

192

b)

224

c)

240

d)

252

31.

Which kind of planning consists of successive representations of different levels of a plan?

a)

hierarchical planning

b)

non-hierarchical planning

c)

All of the above

d)

project planning

32.

DEC advertises that it helped to create "the world's first expert system routinely used in an industrial

environment," called XCON or:

a)

PDP-11

b)

Rl C. VAX

c)

MAGNOM

d)

None of the above

33.

Weak AI is

a)

the embodiment of human intellectual capabilities within a computer

b)

a set of computer programs that produce output that would be considered to reflect

intelligence if it were generated by humans.

c)

study of mental faculties through the use of mental models implemented on a computer.

d)

All of the above

34.

In LISP, the function assigns the symbol x to y is

a)

(setq y x)

b)

(set y = 'x')

c)

(setq y = 'x')

d)

(setq y 'x')

35.

Nils Nilsson headed a team at SRI that created a mobile robot named:

a)

Robitics

b)

Dedalus

c)

Shakey

d)

Vax

36.

What is the name of the computer program that contains the distilled knowledge of an expert?

a)

Data base management system

b)

Management information System

c)

Expert system

d)

Artificial intelligence

37.

What of the following is considered to be a pivotal event in the history of AI.

a)

1949, Donald O, The organization of Behaviour,

b)

1950, Computing Machinery and Intelligence.

c)

1956, Dartmouth University Conference Organized by John McCarthy

d)

1961, Computer and Computer Sense.

38.

Which type of actuator generates a good deal of power but tends to be messy?

a)

Electric

b)

Hydraulic

c)

Pneumatic

d)

(B) and (c) above

39.

Visual clues that are helpful in computer vision include:

a)

colour and motion

b)

depth and texture

c)

height and weight

d)

a and b above

40.

A network with named nodes and labeled arcs that can be used to represent certain natural

language grammars to facilitate parsing.

a)

Tree Network

b)

Star Network

c)

Transition Network

d)

Complete Network