Ordinary level 2023 south west regional mock computer science 1
Ordinary level 2023 south west regional mock computer science 1
AU ot the toiiowing are search engines except?
A. Google
B. Bing
C. Yahoo
D. Internet Explorer
2. Which language translator translates source code
to machine code one line at a time?
A, Compiler
B. Interpreter
C. Assembler
D, Decoder
3. A nibble is equivalent to:
A. 2 bytes
B. 8 bits
C. 2 bits
1). Half a byte
4. A good algorithm should be “unambiguous’’.
This means
A. It should be able to tell when
made
B. It should be consistent in what it does
C. It should have the same interpretation by
everyone
D. It should have a starting and an ending
instruction.
A printer prints normally on one computer but
fails to be recognized when connected to a
second running computer. What should the user
look out for?
A. The power supply to the second computer
B. The content that is to be printed
C. Verify if the driver of the printer is
installed on the second computer
D. The ink in the printer is insufficient
6. When is a software said to be portable?
A. If it is small in size
B. 1f it works on different platforms
C. If it can be stored on diskettes
I). If it can be carried from place to place
7. The communication mode that supports two-way
traffic but operates only in one direction at a time
is said to be:
an error ts
12. How many cells are in the range A1:C4?
A. 10
B. 15
C. 2
D. 12
13. What is the binary equivalence of the
hexadecimal number A3
A. 10101101
B. 10100011
C. 10110011
D. 10110101
14. Given the Boolean expression A. B + A B. How
many logic gates are required to construct the
circuit for this Boolean expression?
A. 3
B. 2
C. 4
D. 5
15. How are data accessed on a magnetic tape drive?
A. Random access
B. Direct access
C. Sequential access
P. associate access
16. Which of the following is a peripheral device?
A. CPU
B. External Hard Drive
C. Cache
D. RAM
^ “I i
17. Arrange the following in descending order of
access speed: 1. RAM, 2. Hard disk, 3. Registers,
and 4. Cache
A. 1 – 2 – 4 – 3
B. 4-3- 2 – 1
C. 1-3- 2 – 4
I). 3-4- 1 -2
A, Simplex
B, Asynchronous
C. Half-duplex
D. Full-duplex
8. The process of converi’ng signals front a
computer to a form that can oe trans mitted over a
telephone line is called.
A. Modulation
B. Demodulation
C. Multiplexing
D. Demultiplexing
