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Worksheets

CSI106

Total questions: 60

Worksheet time: 30mins

Name
Class
Date
1.

Different sets of bit patterns have been designed to represent text symbols. Each set is called a___ ?

a)

bit patterns

b)

 binary

c)

C. code

d)

 binary text file

2.

The queue operation: "queue (queueName)" is used to___

a)

Delete queue

b)

Check status of queue

c)

Create an empty queue

d)

Insert queue

3.

The device manager will be tracking every device constantly to ensure that the device is___

a)

Ready

b)

Finished

c)

Functioning property

d)

A.  Running

4.

In ___ cryptography, everyone has access to everyone's public key.

a)

Symmetric-key

b)

Asymmetric-key

c)

Secret-key

d)

Private-key

5.

In the system development process, structure charts are tools used in the ___ phase.

a)

Analysis

b)

Design

c)

Implementation

d)

 Testing

6.

___ is a computer program that does perform a legitimate task but which also contains code to carry out malicious attacks such as deleting or corrupting files

a)

DoS

b)

 Trojan horses

c)

Worms

d)

Viruses

7.

What is the analysis process in the implementation phase that will use a program as an active agent that manipulates active object?

a)

Procedure-oriented analysis

b)

Structured analysis

c)

Classical analysis

d)

A. Object-oriented analysis

8.

A stack is a ___ structure.

a)

FIFO

b)

LIFO

c)

DIFO

d)

SIFO

9.

Which of the following is the user programmed semiconductor memory?

a)

SRAM

b)

DRAM

c)

EPROM

d)

All of the others

e)

None of the others

10.

___is usually privately owned, limited in size and connects some hosts in a single office, building, or campus.

a)

LAN

b)

WAN

c)

 Internet

d)

 Network

11.

___is a method in which each statement in the software is executed at least once.

a)

Basis path testing

b)

Condition testing

c)

. Loop testing

d)

Boundary testing

12.

Each row in a relation is called ___

a)

An attribute

b)

A tuple

c)

 union

d)

A.  An attitude

13.

Which type of computers use the 8 bit code called EBCDIC?

a)

Minicomputers

b)

Microcomputers

c)

Mainframe computers

d)

Supercomputers

e)

None of the others

14.

A ___ causes an action to be performed by the program. It translates directly into one or more executable computer instructions.

a)

Expression

b)

Operator

c)

Variables

d)

Input/output

15.

The ___ is a computer subsystem that performs operations on data.

a)

CPU

b)

Memory

c)

 I/O hardware

d)

Bus subsystem

16.

We use a ___ search for an unordered list.

a)

Sequential

b)

Binary

c)

Bubble

d)

Insertion

17.

A ___  is a nonactive set of instructions stored on disk (or tape). It may or may not become a

a)

Program

b)

 Job

c)

Process

d)

Task

18.

A computer language that is written in binary codes only is___

a)

machine language

b)

C.

c)

C#

d)

 pascal

e)

None of the others

19.

In a three-level DBMS architecture, the ___ level determines where data is actually stored in devices

a)

External

b)

Conceptual

c)

Internal

d)

Physical

20.

Use a simple right shift operation on the bit pattern 1001 1000.

a)

1001 1001

b)

1001 1000

c)

0100 1101

d)

0100 1100

21.

In a computer, the ___ subsystem performs calculations and logical operations.

a)

ALU

b)

Input/output

c)

Memory

d)

Control unit

22.

Which of following that describe to protect data that information needs to be protected from t change?

a)

Confidentiality

b)

 Integrity

c)

Availability

d)

Masquerading

23.

___who create algorithms to break existing internet networks so as to solve the loopholes in them

a)

Black Hat Hacker

b)

Grey Hat Hacker

c)

Red Hat Hacker

d)

Blue Hat Hacker

24.

In physical layer, an ___ has infinitely many levels of intensity over a period of time

a)

Analog signals

b)

Electromagnetic signals

c)

 Digital signals

d)

Electronic signals

25.

In ___ cryptography symbols are permuted or substituted; in asymmetric-key cryptography numbers are manipulated

a)

Symmetric-key

b)

Asymmetric-key

c)

Public-key

d)

Private-key

26.

Of the various database models, the ___ model is the most prevalent today

a)

Hierarchical

b)

 Networ

c)

Relational

d)

 Linked list

27.

___ is a basic algorithm that adds a list of numbers

a)

Summation

b)

 Product

c)

Smallest

d)

Largest

28.

In the modulo division hashing assume we have kev = 614 file sizo = 307 The result of address is___

a)

001

b)

002

c)

003

d)

004

29.

The ___ is a pointer that identifies the next element in the linked list.

a)

Link

b)

Node

c)

Array

d)

Data

30.

When the ciphertext is received the receiver must transform the ciphertext back into the plaintext-this is___

a)

Plain text

b)

Cipher text

c)

 Encryption

d)

Decryption

31.

In ___ sort, the smallest item from the unsorted list is swapped with the item at the beginning of the unsorted list

a)

Selection

b)

 Bubble

c)

Insertion

d)

 Every

32.

At the transport layer, TCP groups a number of bytes together into a packet called a___

a)

Frame

b)

Bit pattern

c)

Segment

d)

Packet

33.

The ability of a computer system to remain operational despite various failures is

a)

Relation

b)

 Schema

c)

Resilience

d)

Versatility

e)

None of the others

34.

Images are stored in computers using ___ techniques?

a)

Raster graphics and bit map

b)

Vector graphics and bit map

c)

True-color and raster graphics

d)

Index-color and vector graphics

e)

Bit map

35.

A ___ controller is a high-speed serial interface that transfers data in packets

a)

 SCSI

b)

USB

c)

FireWire

d)

USB and FireWire

36.

Which of the following representations is erroneous?

erroneous: sai (adj)

a)

(10211)2

b)

(342)8

c)

(EEE)16

d)

145

37.

When a sequential file is updated, the ___ file contains a list of all errors occurring during the update process.

a)

New master

b)

Old master

c)

Transaction

d)

Error report

38.

Defining the users, requirements, and methods is part of the ___ phase.

a)

Analysis

b)

 Design

c)

Implementation

d)

A. Testing

39.

A ___ is a storage device that can undergo multiple writes and erasures.

a)

CD-ROM

b)

CD-R

c)

CD-RW

d)

A. CD-RR

40.

The first microprocessors produced by Intel Corpn. and Texas Instruments were used primarily to control small___

a)

Microwave ovens

b)

A. Washing machines

c)

Calculators

d)

Personal computers

e)

Robotics

41.

A number which is stored and processed but not in the standard exponential form is called

a)

Floating point number

b)

Fixed point number

c)

Octal number

d)

Decimal number

e)

A. None of the others

42.

In an inorder traversal of a binary tree, the root is processed___

a)

First

b)

Second

c)

Last

d)

Two times

43.

___ refers to the ability to move data and/or a system from one platform to another and to reuse code.

a)

Maintainability

b)

Operability

c)

 Correctability

d)

Transferability

44.

A data structure can be___

a)

Only an array

b)

Only a record

c)

Only a linked list

d)

An array, a record, or a linked list

45.

An error in computer data is called

a)

Chip

b)

Bug

c)

Bit

d)

Byte

e)

None of the others

46.

Use a simple right shift operation on the bit pattern 1001 1000.

a)

1001 1001

b)

1001 1000

c)

0100 1101

d)

0100 1100

47.

If personal information about each employee in a company is stored in a file we can use retrieve each record at the end of the month to print the paychecks

a)

Hashed file

b)

Sequential file

c)

 EOF

d)

Index file

48.

Each element in a record is called ___

a)

A variable

b)

An index

c)

A field

d)

A node

49.

What is language of procedural paradigm that is high level language and also has some low-level instructions?

a)

COBOL

b)

C

c)

Pascal

d)

Ada

50.

An IPv4 address is a ___ to the Internet address that uniquely and universally defines the connection of a host or a router

a)

32-bit

b)

64-bit

c)

128-bit

d)

None of others

51.

When converting a decimal fraction to base b, we repeatedly ___ b,

a)

Divide by

b)

Multiply by

c)

Add to

d)

Subtract from

52.

___ is a declarative language used on relational databases

a)

PDQ

b)

SQL

c)

 LES

d)

PBJ

53.

In a positional number system with base b, we can always find the number of digits of an integer. So how many digits can we find in the decimal number 20 in octal system?

a)

1

b)

 2

c)

3

d)

4

e)

None of the others

54.

The 2's complement number of 110010 is

a)

001101

b)

110011

c)

 010011

d)

001110

e)

None of the others

55.

___ is an English-language-like representation of code.

a)

A UML diagram

b)

A program

c)

Pseudocode

d)

An algorithm

56.

In the storing audio, if the signal is changing rapidly, we need more samples. It has been shown that a 40000 samples per second is good enough to reproduce an audio signal, of

a)

Quantization

b)

Sampling rate

c)

Encoding

d)

Bit depth

57.

The union database operation is taking two relations and creating a new relation. What is a result of this operation?

a)

Neither the first relation nor the second

b)

Both of the first relation and the second.

c)

The first relation but not the second.

d)

The second but not the first

58.

___ is a protocol for accessing and transferring documents on the WWW

a)

FTP

b)

SMTP

c)

TELNET

d)

HTTP (HyperText Transfer Protocol)

59.

In ___ the program is divided into pages and it does not require that the entire program be in memory for execution

a)

Partitioning

b)

Paging

c)

Demand paging

d)

Demand segmentation

60.

A group includes ___ bits in the binary system are represented as one digit in the hexadecimal system.

a)

1

b)

2

c)

3

d)

4

e)

None of the others