Advanced level 2024 South West regional mock computer science 1
Advanced level 2024 South West regional mock computer science 1
Given today’s technology and his immediate access to
resources all over the world, Teke says he is a citizen
of the world, not just a Cameroonian. We agree with
him because:
A. his computing skills are useful all over the world
B. he accesses facilities all over the world, as would
one living in those countries
C. his computing skills give him the same right as
citizens in other countries
D. his computing skills give him extra advantage over
ordinary citizens of the world
2. The register that keeps track of program instructions
during execution is a(n):
A. accumulator
B. address register
C. data register
D. program counter
3. The minimum number of bits required to address a
memory of size 2M by 32 is:
A. 5
B. 64
C. 8
D. 21
4. In this classification, each instruction is executed
using its own data independently of how other
instructions get their data. We are using a(n):
A. multiple instruction multiple data
B. multiple instruction single data
C. single instruction single data
D. single instruction multiple data
5. What is R in the following circuit diagram?
A. A•B+
B. •A+B
C. + + •B
D.
6. A word processor uses the standard ASCII character
set to encode characters. The word processor is used
to produce a document with 10,000 characters. Which
of the following is the exact size of the document on
disk?
A. 8.75KB
B. 8.54KB
C. 9.77KB
D. 10KB
7. If the capacity of a disc is 25GB, how many CDs can
be used to store this quantity given that one CD has a
capacity of 700MB?
A. 36.57
B. 36
C. 37
D. 36.71
8. Parallelism that results from overlapping the
execution of the steps of successive instructions is
known as:
A. multiprocessing
B. vector processing
C. scalar processing
D. pipeline processing
9. A RISC instruction set has 45 instructions. If each
instruction in the set is 32 bits long, what is the
minimum number of bits that can be used to represent
the Opcode for each instruction?
A. 24 bits
B. 8 bits
C. 6 bits
D. 5 bits
10. The 8-bit two’s complement representation of the
denary number -33 is:
A. 1101 1111
B. 1011 0011
C. 1101 1110
D. 1010 0001
11. The turnaround time of user’s job is the:
A. time since its submission till the time its results
are available
B. time duration for which the CPU is allotted to the
job
C. total time taken to execute the job
D. time taken for the job to move from assembly
phase to completion phase
12. If data is processed as it arrives, this type of
processing is called:
A. real time processing
B. batch processing
C. distributed processing
D. transaction processing
13. A CPU scheduling algorithm determines an order for
the execution of its scheduled processes. Given k
processes to be scheduled in one processor, how
many different possible ways can these processes be
scheduled?
A. k!
B. (k-1)!
C. k!/(k-1)!
D. k(k-1)/2
