A Level Computer Science Quiz 2019 Part 2

15 Questions

Quiz Description

Yes, you (student) can have a good grade in any subject of your choice. The encounters by most students during an exam are on the topics treated at the advanced level. The options of having a good grade are endless as long a student studies hard and takes his/her studies seriously.

Computer science is a subject that most students have taken interest in but are often discouraged to study and understand it. This is mostly due to it having a bulky syllabus at the advanced level. To this effect, they always feel discouraged to give all their best.

In an initiative to help students, gcequiz.com has designed a quiz to assist students prepare for their upcoming June sessions exam. This quiz comprises 15 questions which are selectively chosen from the June 2019 session of the CGCE. Some of the topics you as a student should revise before attempting this quiz include.

Remember to keep an open mind

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

Good luck!!!

1:

Which of the following is NOT an advantage of Dynamic RAMs?


Correct
  • 1:
    High density
  • 2:
    Low cost
  • 3:
    High speed
  • 4:
    No need of memory refresh
2:

In the memory hierarchy the fastest memory is:


Correct
  • 1:
    RAM
  • 2:
    Cache
  • 3:
    CPU registers
  • 4:
    Virtual Memory
3:

In a token ring network:


Correct
  • 1:
    Each node has to ‘grab’ the token at a designated time and send or receive a message
  • 2:
    Messages can be passed round the ring in either direction
  • 3:
    Message tokens can simultaneously be passed around the ring
  • 4:
    The message is passed to the correct recipient by a central computer
4:

The highest data rate is provided by which of the following media?


Correct
  • 1:
    Coaxial cable
  • 2:
    Optical fibre
  • 3:
    Microwave
  • 4:
    Satellites
5:

A multi-programming computer is one which:


Correct
  • 1:
    Has several processors working in parallel
  • 2:
    Having multiple users working at the same time
  • 3:
    Is capable of running two or more programs apparently simultaneously
  • 4:
    Multiple programs are made to run at the same time
6:

One job of the scheduler is to:


Correct
  • 1:
    Ensure hardware resources are kept free for when they are needed
  • 2:
    Provide acceptable response time to interactive users
  • 3:
    Ensures that one process dies not accidentally access another’s memory locations
  • 4:
    Select a scheduling algorithm to achieve maximum throughput
7:

A real time operating system is most likely to be used for which of the following task?


Correct
  • 1:
    Controlling access to a shared resource in a network
  • 2:
    Ensuring that system clock works correctly on a server
  • 3:
    Managing the access to system files in a laptop computer
  • 4:
    Controlling the fuel injection system of an automobile engine
8:

A top-to-bottom relationship among the items in a database is established by a:


Correct
  • 1:
    Hierarchical schema
  • 2:
    Network schema
  • 3:
    Relational schema
  • 4:
    Object schema
9:

The level of data abstraction which describes how the data is actually stored in a database system is:


Correct
  • 1:
    Conceptual level
  • 2:
    Physical level
  • 3:
    File level
  • 4:
    None of these
10:

A data model is:


Correct
  • 1:
    Used to describe structure of a database
  • 2:
    Set of basic operations on the database
  • 3:
    Both (A) and (B)
  • 4:
    None of the above
11:

Managers who are potential users of an MIS:


Correct
  • 1:
    Describe desired information needs
  • 2:
    Identify desired information needs
  • 3:
    Evaluate alternate equipment configuration
  • 4:
    Identify optimum equipment configuration
12:

Program-data independence in the context of a DBMS means that changes to:


Correct
  • 1:
    The content of data files do not necessitate changes to the program
  • 2:
    The program does not affect the contents of the files
  • 3:
    The program does not affect the structure of the data files
  • 4:
    The structure of the data files do not affect the program
13:

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
14:

An attribute in the context of a relational database may be defined as:


Correct
  • 1:
    Something about which data is held
  • 2:
    A column of a table
  • 3:
    A role in a table
  • 4:
    A key field of a table
15:

A process may be at any time running, ready or suspended. Which of the following statements is true?


Correct
  • 1:
    A process will join the queue of suspended jobs if, while it is running, the time slice expires
  • 2:
    A process is ready if it is waiting for an I/O device to become free
  • 3:
    A process is running if it is in memory, waiting for the process to become free
  • 4:
    A process is suspended if it is waiting for an I/O device to become free

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A Level Computer Science Quiz 2019 Part 2