The binary number 100101, can be written in denary as
Одговорити
(B)
37
3
The first stage in computer data processing procedure is
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(A)
collection of data
4
One advantage of electronic data processing is that it
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(D)
handles complex data
5
The type of computer that has the ability of counting in discrete form is referred to as
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(B)
digital computer
6
One reason for using Computer Aided Design in manufacturing is that
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(D)
3D designs are easily produced with it.
7
Which one of the following statements is true about Voice Over IP? it
Одговорити
(A)
converts voice and video data into a digital signal and transfers it over the Internet.
8
Which one of the following sets of devices can be used to store data during processing?
Одговорити
(A)
Cache, RAM and Register
9
The process of inspecting, transforming and modeling data to get useful information is known as
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(D)
analysis
10
One disadvantage of using computer for information processing is
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(B)
increased running cost in the long run
11
The diagram in Figure 1 illustrates process called
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(B)
information transmission
12
The transmitter in communication is the component that
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(D)
launches signal into the air
13
Which of the following resources is not usually shared in a network?
Одговорити
(A)
VGA projector
14
Factors to be considered when creating a backup system in a computer network include
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(C)
media to use, amount of data and frequency of backup.
15
The URL www.exams.edu.ng represents the website of
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(A)
an examination body
16
The Post Ofice Protocol (POP) is used to
Одговорити
(B)
retrieve email from a mail server
17
A user working on a computer that is running on Windows 7 issued the com- mand "Ctrl + Alt + Del" while typing a document.
What interface is expected to be displayed on the screen?
Одговорити
(C)
Windows Security
18
Header and Footer are added to a document in MS Word by just clicking on the
Одговорити
(C)
Insert menu
19
A typist positioned the insertion point at the beginning of a line of text in a word processor and then pressed down the Shift key and clicked at the opposite end of the text. What would be the result of this action? The text will be
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(D)
highlighted on the screen.
20
The Microsoft Excel menu bar icon shown in Figure 2 is used to
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(D)
organize data for easy analysis
21
To add a new column to the right of the IGR column on the interface in the figure above, the user would.
Одговорити
(D)
right click on column D and the click on user
22
The function of the foreign key in a database is to
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(B)
provide a link between data in two tables
23
How many primary keys exist in the figure above?
Одговорити
(A)
3
24
Which of the following lists contains the primary keys in the figure above?
Одговорити
(B)
Customerld, Orderld, Productld.
25
Web design packages include the following, except
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(C)
Front page
26
The part labelled IV in the image above is used to
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(C)
draw lines and curves
27
One precautionary measure taken when cleaning a monitor is
Одговорити
(C)
unplugging the power supply cable
28
Which one of the following practices is considered ethical?
Одговорити
(D)
Signing into school e-library to read e-books
29
Proper network implementation and good ICT policies are types of
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(D)
preventive measures
30
Preventive maintenance measures in the computer room include the following options except
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(C)
the use of rugs
31
A database administrator is responsible for the following tasks except
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(D)
maintaining connection between local network and the network and the internet
32
Measures taken to avoid eye strain include the following except
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(D)
relaxing the body regularly.
33
A computer virus replicates itself into other programs or certain areas on the disk during the
Одговорити
(C)
propagation phase
34
A malware that copies and replicates itself using computer network and security flaws is
