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