# A Level Computer Science Quiz 2020 Part 1

#### Quiz Description

Computer science is the study of computers and algorithmic processes including their processes, including their principles, their hardware and software designs, their application and their impact on society. This world of technology is still advancing today because of the development in computer science.

Many students believe that to answer a multiple-choice question they need only be able to recognize and so need only do minimal revisions. A well-written multiple-choice examination, however, will require you(student) not only to have thorough knowledge of the subject, but also to be able to integrate information and to discriminate between answers.

In this effect, to help students gain this understanding, we have designed a quiz made up of 15 questions. These questions are from the recent years of the CGCE examinations. Some of the topics students will encounter in this quiz include “computer arithmetic and logic gate, software systems, etc.

To have more resourceful materials such as this quiz, you can visit our website.

Good luck!!!

Computer organization is how:

Correct
• The computer hardware logic is organized to carry out its operations
• Computer hardware is organized into functional units and subsystems
• The computer is set up so as to carry out tasks people want done
• The computer hardware is designed to provide services and facilities for use

In this classification, each instruction is executed using its own input data, independently of how other instructions get their data. We are using a(n):

Correct
• Multiple Instruction Multiple Data
• Multiple Instruction Multiple Data
• Single Instruction Single Data
• Single Instruction Multiple Data

It is used for long-term storage of information, but also as an overflow area for executing programs:

Correct
• Hard disk
• CD ROM
• CMOS
• ROM

What is the result of the following in sign-absolute notation? 01 110 100 – 01 001 100.

Correct
• 00 101 000
• 10 101 000
• 00 010 100
• 10 011 000

What is R in the following circuit diagram?

Correct
• A
• B
• C
• D

It looks for an instruction, uses circuits to interpret it, and then carries out the instruction in a process known as the:

Correct
• Program Instruction Cycle
• Machine Instruction Cycle
• Machine Execution Cycle
• Program Execution Cycle

When the processor receives a signal, it stops what it is doing in order to attend to the request. The mechanism exploited here is:

Correct
• Interrupt signal
• Spooling
• Interrupt handling
• Polling

The following is true of indirect operand addressing mode:

Correct
• The data occupies the address just after the instructions
• The data occupies two memory cells of the instruction
• One needs to read two more memory cells to get the data
• One needs to index memory cells to get the data

Which of the following is NOT true of machine instruction code?

Correct
• It has an instruction format
• Its bit pattern is for specific machines
• It has clear addressing formats
• All machines have same instructions format

Its software directly controls the hardware components in order to carry put tasks they are designed for but, essentially, it acts as a computer and is seen as such. It is:

Correct
• A monitoring system
• An embedded system
• An automated system
• A control system

We use to manipulate and disseminate information among individuals and organisations, possibly over long distances

Correct
• Management Information Systems
• Information & Communication Systems
• Geographic Information Systems
• Data Communication Systems

Joe hacked into Dam’s online bank account and withdrew and returned money Dan stole from Jane. Joe accessed the account by supplying the information Dan normally gives. Joe commit a computer crime

Correct
• Joe illegally accessed an account, whether or not he used computers
• No. Joe simply helped Jane to get what was rightfully hers
• Joe used computing skills to access an account he shouldn’t
• No. Joe supplied all the information to legally access the account

Which of the following control the aspect the public can see or inquire about you, if stored in a computer system, but allows you to verify or correct the information so stored?

Correct
• Computer Security
• Computer Privacy
• Computer Correctness
• Computer Ethics

Given today’s technology and his immediate access to resources all over the world, Ngene says he is a citizen of the world, not just a Cameroonian. We agree with him because:

Correct
• His computing skills are useful all over the world
• He accesses facilities all over the world, as would one living in those countries
• His computing skills gives him the same rights as citizens in other countries
• His computing skills gives him extra advantages over ordinary citizens of the world

Mojoko submitted many programs and their data at a Computing Centre,

Correct
• An online processing system
• A real-time processing system
• A transaction processing system
• A batch processing system