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