A Level Computer Science Quiz 2020 Part 2

15 Questions

Quiz Description

Exams can be stressful for some students; they often ask you to cram a whole semester’s worth of information into a couple of hour’s week.

Computer science is a subject studied right from the primary up to the second cycle. It has been given so many definitions and one of them being “the systematic study of feasibility, structure, expression, and mechanization of algorithms that underline the acquisition, representation, processing, storage and communication of information”.

Students always fall into the trap of spending 99% of their study time mindlessly writing out notes and 1% of their time doing the active work that is required of them.

Rather than students being passive with their preparation for exams, a quiz has been created made up of 15 based on the Advanced level syllabus. Each question contains four answers and of which only 1 is correct among them.

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

Good luck!!!

1:

Cloud computing handles resources, data and information in certain ways:


Correct
  • 1:
    It provides them as services over the internet
  • 2:
    It allows them to be transmitted to assorted machines across the internet
  • 3:
    Allows them to be used over the internet, where they are found
  • 4:
    Allows them to be used more efficiently than on stand-alone devices
2:

Certain programs facilitate the construction of other programs, and can be used over and over again rather than constructed. They are:


Correct
  • 1:
    Application programs
  • 2:
    Systems programs
  • 3:
    Library programs
  • 4:
    Utility programs
3:

A____ is used such that correct programs in a source programming language are possibly made more efficient while they are made ready for machine execution


Correct
  • 1:
    An assembler
  • 2:
    An optimizer
  • 3:
    A translator
  • 4:
    A compiler
4:

Bisi’s computer help Desk uses many software platforms. She has to quickly respond to frequently asked questions from her clients, so she must probably use:


Correct
  • 1:
    A Graphical User Interface (GUI)
  • 2:
    A Command Line Interface (CLI)
  • 3:
    A Linux Interface
  • 4:
    An MS Windows Interface
5:

Jobs, P1, P2 and P3 need 6, 4 and 2 units of execution time respectively. They arrive at times 1, 4 and 6 as shown below. Which job is completed last if a shortest job First scheduling policy is used?


<p> Jobs, P1, P2 and P3 need 6, 4 and 2 units of execution time respectively. They arrive at times 1, 4 and 6 as shown below. Which job is completed last if a shortest job First scheduling policy is used? </p>
Correct
  • 1:
    P1
  • 2:
    P2
  • 3:
    P3
  • 4:
    P2 and P3
6:

Which of the following is false for segmented paged memory allocation?


Correct
  • 1:
    Pages of a program can be in any order in memory
  • 2:
    Segments are overlaid onto the physical address space
  • 3:
    A page need not occupy a whole segment of memory
  • 4:
    The address in a program requires an offset from its page address only
7:

What input device might a multi-choice questionnaire writer use to input completed forms into a computer


Correct
  • 1:
    Magnetic Ink Character Recognition (MICR)
  • 2:
    Optical Mark Recognition (OMR)
  • 3:
    Optical Character Recognition (OCR)
  • 4:
    Hand-held computers
8:

The number -17 translated into an 8-bits two’s complement binary integer is:


Correct
  • 1:
    11101111
  • 2:
    11101101
  • 3:
    10010011
  • 4:
    11101100
9:

The positive binary number 10101111 translated into hexadecimal is:


Correct
  • 1:
    AE
  • 2:
    AF
  • 3:
    EF
  • 4:
    FA
10:

Two Components of the Von Neumann Architecture are:


Correct
  • 1:
    Memory and Processor
  • 2:
    Hard disk and RAM
  • 3:
    Processor and CPU
  • 4:
    ALU and Processor
11:

Location 600 contains 601, 601 contains 607 and 607 contains 613. What are the contents of register R after the following instruction? (The parentheses indicate indirect addressing)

LOAD R, (600)


Correct
  • 1:
    600
  • 2:
    607
  • 3:
    601
  • 4:
    613
12:

A table in third normal form is one which:


Correct
  • 1:
    Has only one primary key
  • 2:
    Is linked to another table by means of a foreign key
  • 3:
    Have no repeating fields
  • 4:
    Contains no non-key dependencies
13:

In mesh topology, relationship between one device and another is:


Correct
  • 1:
    Server to peer
  • 2:
    Peer to Server
  • 3:
    Client – Server
  • 4:
    Peer to peer
14:

The performance of data communications network depends on:


Correct
  • 1:
    Number of users connected
  • 2:
    The hardware and software
  • 3:
    The transmission
  • 4:
    All of the above
15:

Which OSI layer has routers?


Correct
  • 1:
    Network layer
  • 2:
    Transport layer
  • 3:
    Session layer
  • 4:
    Presentation layer

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A Level Computer Science Quiz 2020 Part 2
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