Unit 1.1 Systems Architecture MCQs
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• Question 1
30 seconds
Q. Processors have a speed measured in (1-4)
Hertz
Bits
Bytes
Seconds
• Question 2
30 seconds
Q. Data and Instructions in use are stored in the: (1-4)
Processor
Embedded System
Hard Disk Drive
Main Memory
• Question 3
30 seconds
Q. Typical processor speed of 2016: (1-4)
16Hz
100MHz
4GHz
300GHz
• Question 4
30 seconds
Q. What doesn’t affect the performance of the computer (1-4)
Clock Speed
Number of Cores
Cache Size
The number of instructions in the program
• Question 5
30 seconds
Q. If the number of cores goes up from 2 to 4 – what is the exact effect on performance? (1-4)
Performance decreases
The maximum number of instructions executed per second doubles
The maximum number of instructions executed per second quadruples
The maximum number of instructions executed per second is halved
• Question 6
30 seconds
Q. If the processing speed goes up from 1GHZ to 4GHZ – what is the exact effect on the performance of the computer? (1-4)
The maximum number of instructions executed per second doubles
The maximum number of instructions executed per second quadruples
The maximum number of instructions executed per second is halved
The maximum number of instructions executed per second is quartered
• Question 7
30 seconds
Q. If the processing speed goes up from 2GHZ to 4GHZ and the number of cores goes from 2 to 4 – what is the exact effect on the performance of the computer? (5-6)
The maximum number of instructions executed per second doubles
The maximum number of instructions executed per second quadruples
The maximum number of instructions executed per second is halved
The maximum number of instructions executed per second is quartered
• Question 8
30 seconds
Q. If the processing speed goes from 1GHZ to 4GHZ and the processor is changed from an 8 core to a dual core processor – what is the exact effect on the performance of the computer? (5-6)
The number of instructions executed per second doubles
The number of instructions executed per second quadruples
The number of instructions executed per second is halved
The number of instructions executed per second stays the same
• Question 9
30 seconds
Q. Firmware in which software and hardware are integrated on a circuit board is often used in what type of system? (5-6)
Desktop System
Embedded System
Operating System
Point of Sales System
• Question 10
30 seconds
Q. Which is an example of an Embedded System: (1-4)
Laptops
Tablets
PCs
Washing Machine
• Question 11
30 seconds
Q. Processor don’t do the following (1-4)
Process Data
Execute Instructions
Execute Data
Operate in Hz
• Question 12
30 seconds
Q. The part of a processor in which instructions are executed is known as? (1-4)
Core
Centre
Execution
Instruction Centre
• Question 13
30 seconds
Q. What acts as an intermediary between the processor and the Main Memory? (6-9)
Bus
User
Cache
Clock
• Question 14
30 seconds
Q. What is held in cache? (5-6)
All of the programming instructions
Commonly used instructions and data
Instructions that have been processed
Data that hasn’t been used for a long time
• Question 15
30 seconds
Q. Moore’s Law? (7-9)
Predicted that the number of transistors on a circuit board would double ever year
Computers would be capable of thinking and learning for themselves by 2020
That the number of cores on a processor would double every year
The performance increase of computers would eventually halt in 2020
• Question 16
30 seconds
Q. Firmware refers to (5-6)
Any hardware that can’t easily break
A combination of hardware and software
A type of software that is updated to make a computer work better
Hardware used in kitchens
• Question 17
30 seconds
Q. If the processing speed goes up from 2GHZ to 4GHZ and the number of cores goes from 1 to 2 – what is the exact effect on the performance of the computer? (5-6)
Doubled
Eight Times faster
Sixteen times faster
• Question 18
30 seconds
Q. If the processing speed goes up from 2GHZ to 4GHZ and the number of cores goes from 1 to 4 – what is the exact effect on the performance of the computer? (5-6)
Doubled
Eight Times faster
Sixteen times faster
• Question 19
30 seconds
Q.  If the processing speed goes up from 1GHZ to 4GHZ and the number of cores goes from 1 to 2 – what is the exact effect on the performance of the computer? (5-6)
Doubled
Eight Times faster
Sixteen times faster
• Question 20
30 seconds
Q. If the processing speed goes up from 1GHZ to 4GHZ and the number of cores goes from 1 to 8 – what is the exact effect on the performance of the computer? (5-6)
Eight Times faster
Sixteen times faster
Thirty Two times faster
Sixty Four times faster
• Question 21
30 seconds
Q.  What component holds the address of the next instruction (7-9)
Memory Data Register
Program Counter
Accumulator
• Question 22
30 seconds
Q.  Results of calculations are held in this register: (7-9)
Memory Data Register
Program Counter
Accumulator
• Question 23
30 seconds
Q. This holds the instruction/data temporarily after it is brought to the processor from the main memory (7-9)
Memory Data Register
Program Counter
Accumulator
• Question 24
30 seconds
Q. This holds the number of the current instruction being worked on (7-9)
Memory Data Register
Program Counter
Accumulator
• Question 25
30 seconds
Q. This would perform an operation including the word “And” (5-7)
Arithmetic Logic Unit
Accumulator
Cache
Control Unit
• Question 26
30 seconds
Q. This would send a signal such as “Memory Read” (5-7)
Arithmetic Logic Unit
Accumulator
Cache
Control Unit
• Question 27
30 seconds
Q. This would perform an operation such as 5+8 (1-4)
Arithmetic Logic Unit
Accumulator
Cache
Control Unit
• Question 28
30 seconds
Q. This would reduce the number of memory/processor transfers (5-7)
Arithmetic Logic Unit
Accumulator
Cache
Control Unit
• Question 29
30 seconds
Q. This sends signals such as “I/O Read” (5-7)
Arithmetic Logic Unit
Accumulator
Cache
Control Unit
• Question 30
30 seconds
Q. This sends signals such as “Memory write” (5-7)
Arithmetic Logic Unit
Accumulator
Cache
Control Unit
• Question 31
30 seconds
Q. This doesn’t happen during the Fetch part of the cycle: (7-9)
Program Counter increments by one
Arithmetic operations are performed
• Question 32
30 seconds
Q. This doesn’t happen during the Decode / Execute part of the cycle: (7-9)
Current Instruction is held in the CIR
Results are held in the Accumulator
Status Register updated
Instructions are transferred from Main Memory
• Question 33
30 seconds
Q. What is held in ROM? (1-4)
Data currently in use
Instructions frequently used
Operating System
• Question 34
30 seconds
Q. This carries address of the next instruction that will be fetched (4-6)
Data Bus
Control Bus
System Bus
• Question 35
30 seconds
Q. What is a property of an Address Bus (4-6)
Carries Data and Instructions
Uni-Directional
Bi-Directional
Carries control Signals
• Question 36
30 seconds
Processor
Main Memory
Control Unit
Secondary Storage
• Question 37
30 seconds
Q.  What is transferred down the data bus? (4-6)
Data only
Data and Instructions
• Question 38
30 seconds
Q. What accurately describes a peripheral? (1-4)
A component of a computer system
A device that is not directly connected to the CPU
A device that is directly connected to the CPU
A device that is plugged in
• Question 39
30 seconds
Q. This is not a type of secondary storage (1-4)
Blu-Ray Drive/Disc
Flash Memory
Hard Disk Drive
RAM
• Question 40
30 seconds
Q. What is the purpose of the accumulator? (4-6)