Which of the following is used for modulation and demodulation ?
Respondre
(C)
Modem
2
When records are given a new value, it is called
Respondre
(A)
updation
3
The type of computers that are designed to perform complex calculations extremely rapidly are called ?
Respondre
(A)
supercomputer
4
A set of moral principles that regulate the use of computers is called
Respondre
(B)
computer ethics
5
The logic gate in the figure above is
Respondre
(C)
XOR gate
6
A computer code that spreads without the user interaction and can cause network performance problem is
Respondre
(B)
a computer worm
7
The following are input devices except.
Respondre
(B)
monitor
8
What category of application package does microsoft excel belong to ?
Respondre
(D)
Spreadsheet packages
9
A type of application software that combines the abilities of several general purpose applications in one program is ?
Respondre
(B)
Integrated Packages
10
What is the function of the escape key ?
Respondre
(C)
to interrupt or cancel the current process or running program
11
A set of programs that direct computers to perform specific information processing activities for end users is
Respondre
(C)
Application software
12
What protocol is used between Email servers?
Respondre
(A)
SMTP
13
The following are the methods of file security except
Respondre
(A)
hacking
14
The first step in a CPU instruction cycle is
Respondre
(C)
Fetch
15
Which of the following is not an example of graphics packages
Respondre
(B)
Quattro pro
16
The process of finding and correcting errors in the program code is called ?
Respondre
(B)
Debugging
17
Which of the following components of the computer is referred to as the administrative section ?
Respondre
(A)
CPU
18
Which of the following is not a third generation language?
Respondre
(C)
Assembly language
19
Which of these commands will reboot the computer ?
Respondre
(A)
Ctrl + Alt + Del
20
The type of database in which the data are connected in different files by using common data elements or a key field is ?
Respondre
(A)
Relational database
21
Anti-virus software is an example of ?
Respondre
(A)
Utility programs
22
What is the shortcut for creating a new document ?
Respondre
(A)
Ctrl + N
23
Which of these criteria is not important while classifying files ?
Respondre
(D)
Storage medium
24
Which of the following is a valid variable name in Python?
Respondre
(B)
my_variable
25
How many bits are in one nibble ?
Respondre
(B)
4
26
The only possible number base for 235\(_x\) among the following is ?
Respondre
(D)
6
27
At what stage in system development life cycle are all data documented in the form of detailed data flow diagrams(DFDs)
Respondre
(C)
System analysis
28
Translators are type of ?
Respondre
(A)
System software
29
What is the difference between an assembler and a compiler ?
Respondre
(B)
an assembler converts assembly level language code into machine language code while a compiler converts high level programming language code to a machine language code.
30
Which of these storage devices can act as a buffer between the CPU and the main memory ?
Respondre
(C)
Cache Memory
31
Evaluate \(1011_2 + 122_4\), leaving your answer in base 10.
Respondre
(A)
37
32
What part of the central processing unit coordinates other units and manages the computer resources ?
Respondre
(D)
Control unit
33
What does R stands for in the CRUD acronym ?
Respondre
(C)
Read
34
Which of these is not true about peer-to-peer network ?
Respondre
(B)
it has a strong security system
35
The Output will be a HIGH for any case when one or more inputs are one for a(an)
Respondre
(A)
OR gate
36
What type of booting does the computer go through when starting up from a powered down ?
Respondre
(A)
Cold booting
37
What type of booting does the computer go through when starting up from a powered down ?
Respondre
(A)
Cold booting
38
The connection between two or more computers to share resources or allow electronic communication is called ?
Respondre
(D)
Network
39
Which of the following is the standard keyboard layout ?
Respondre
(B)
QWERTY
40
Analog, digital and hybrid computers are classification of computers based on
Respondre
(A)
the type of data-handling techniques
41
Which of the following is not an application software
Respondre
(C)
Linux
42
Which of the following is NOT a high-level programming language?
Respondre
(A)
Assembly language
43
what is the first computing machine invented ?
Respondre
(D)
Abacus
44
The default file extension for PowerPoint version 2007 and newer is ?
Respondre
(D)
.pptx
45
Which of the following can be used to select the entire document ?
Respondre
(B)
Ctrl + A
46
Which of the following does not replicate itself in an infected computer?
Respondre
(C)
trojan horse
47
The last cycle of data processing where data and information are preserved for future is called
Respondre
(C)
storage
48
A device that sends and receives printed pages or images over telephone lines by digitizing the material with an internal optical scanner and transmitting the information as electronic signals is a
Respondre
(D)
fax machine
49
The first computer made available for commercial use was
Respondre
(A)
UNIVAC
50
An action performed in the GUI operating systems to hide a window but keep the program running in the background is ?
Respondre
(C)
minimize
51
What is the shortcut for performing warm booting ?
Respondre
(D)
by pressing the Ctrl + Alt + Del keys simultaneously
52
EDVAC was produced using which of these concepts ?
Respondre
(B)
stored program
53
When the computer reboots itself without triggering the hardware based reset, it is called ?
Respondre
(D)
soft reboot
54
Who invented the Napier Bones
Respondre
(A)
John Napier
55
What is the difference between internal and external modem
Respondre
(B)
internal modems are PCI or ISA expansion cards while external modems are traditionally plug into a serial port on the computer.
56
The two types of operating system are
Respondre
(A)
command line and graphical user interface
57
Which of these application packages can be used to create a spreadsheet ?
Respondre
(B)
Microsoft excel
58
In technical feasibility, the priority is ?
Respondre
(C)
whether the problem can be solved using existing technology and resources available
59
What generation of computer is characterized by the use of vacuum tubes for circuitry and magnetic drums for main memory?
Respondre
(C)
first generation
60
Large computers are classified as
Respondre
(D)
mainframe computers
61
Which of the following allows devices on one network to communicate with devices on another network ?
Respondre
(B)
gateway
62
The diagrammatic representation of an algorithm is
Respondre
(D)
flowchart
63
The process where a programmer converts a program specifications into computer instructions is called ?
Respondre
(B)
Coding
64
Which of these programming languages is the most suitable for a business data processing?
Respondre
(C)
COBOL
65
The term used to describe when new information replaces old information or data is
Respondre
(D)
overwrite
66
___ is the type of computer that is designed to operate on two states, 0 and 1.
Respondre
(C)
Digital computer
67
Which of the following is an example of graphics software ?
Respondre
(B)
Adobe Illustrator
68
which communication channel allows the sending of information in one direction only?
Respondre
(A)
simplex mode
69
Which of the following monitors has only two colours
Respondre
(D)
monochrome monitor
70
Computers manipulate data in many ways, and this manipulation is called ?
Respondre
(C)
processing
71
The computer that combines the functions of both analog and digital computers is called ?
Respondre
(C)
Hybrid computer
72
In BASIC, REM shows a statement to be
Respondre
(C)
comment
73
Computers that are small and low cost are referred to as ?
Respondre
(D)
micro computers
74
If the control unit controls other units of the CPU, which unit stores instructions,data and intermediate results.
Respondre
(A)
Memory unit
75
The closest computer language to human is ?
Respondre
(A)
High level language
76
Translating the problem statement into a series of sequential steps describing what the program must do is known as
Respondre
(B)
creating the algorithm
77
One of the following is not a good way to prevent virus.
Respondre
(C)
carelessly exposing your vital and personal information
78
The first stage of data processing activities is ?
Respondre
(B)
Collection
79
Using Boolean identities, reduce the given Boolean expression:
A(A+1) + A(B+0) + C.1
Respondre
(D)
A + C
80
In computer architecture, the type of bus that connects the major components of a computer system is
