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Computers
9th -
11thgrade
AQA GCSE Computer Science: Computer Systems (Paper 2)
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20 questions
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- Multiple ChoicePlease save your changes before editing any questions.
What is 53 in binary?
01100101
00110101
00011011
01010101
- Multiple ChoicePlease save your changes before editing any questions.
Convert A7 from hexadecimal to denary
176
26
122
167
- Multiple ChoicePlease save your changes before editing any questions.
What is 0101 + 0110 ?
1011
0111
1101
1110
- Multiple ChoicePlease save your changes before editing any questions.
One sample of a sound wave is a binary number that represents ...
... the frequency of the wave.
... the amplitude of the wave.
... a short sound for data compression.
... one cycle of the wave.
- Multiple ChoicePlease save your changes before editing any questions.
Decompress this run-length encoded sequence:
102130
123
000110
011000
010203
- Multiple ChoicePlease save your changes before editing any questions.
A = 1 B = 1 C = 0
What is the final output Y?
0
1
2
3
- Multiple ChoicePlease save your changes before editing any questions.
Select three operating system responsibilities.
Error Handling
Word Processing
File Management
Memory Management
Compiling Code
- Multiple ChoicePlease save your changes before editing any questions.
In a Von Neumann architecture ...
data and instructions are both stored in main memory.
data and instructions are stored in separate memory devices.
data is stored in main memory, instructions in secondary storage.
data is stored in secondary storage, instructions in main memory.
- Multiple ChoicePlease save your changes before editing any questions.
Select three valid parts of the CPU.
Memory Unit
Control Unit
ROM
Arithmetic Logic Unit
RAM
- Multiple ChoicePlease save your changes before editing any questions.
Which secondary device has the lowest latency?
Optical Disk
SSD
Magnetic Hard Drive
Cloud Storage
- Multiple ChoicePlease save your changes before editing any questions.
Select the best description of an embedded system
A general purpose computing system, traditionally with more ROM than RAM.
A computing system with a specific purpose, traditionally with more RAM than ROM.
A computing system with a specific purpose, traditionally with more ROM than RAM.
A general purpose computing system, traditionally with more RAM than ROM.
- Multiple ChoicePlease save your changes before editing any questions.
Which network device forwards data packets between networks?
Router
Client
Server
Modem
- Multiple ChoicePlease save your changes before editing any questions.
Which component holds a MAC address?
Network Interface Card
Router
Macbook
Switch
- Multiple ChoicePlease save your changes before editing any questions.
What is an advantage of this star network topology
If the central switch breaks it will still work.
The speed of the network remains high as more devices are added.
It does not require much cabling.
Each device is able to communicate with all other devices.
- Multiple ChoicePlease save your changes before editing any questions.
What is an advantage of this ring network topology
If the central switch breaks it will still work.
The speed of the network remains high as more devices are added.
It does not require much cabling.
Each device is able to communicate with all other devices.
- Multiple ChoicePlease save your changes before editing any questions.
Select two protocols that might be used in the Transport layer.
HTTPS
TCP
IP
UDP
SMTP
- Multiple ChoicePlease save your changes before editing any questions.
A piece of malware is distributed to disrupt a school network by a rival teacher. Which is the most relevant piece of legislation?
Data Protection Act 1998
Computer Misuse Act 1990
Copyright, Design & Patents Act 1988
Electronics Communication Act 2000
- Multiple ChoicePlease save your changes before editing any questions.
Validation codes to download a game (RRP £50) without cost are illegally generated and distributed. Which is the most relevant piece of legislation?
Data Protection Act 1998
Computer Misuse Act 1990
Copyright, Design & Patents Act 1988
Electronics Communication Act 2000
- Multiple ChoicePlease save your changes before editing any questions.
A teacher accidentally emails a file with all of their students' exam grades and data to a non-work friend. Which is the most relevant piece of legislation?
Data Protection Act 1998
Computer Misuse Act 1990
Copyright, Design & Patents Act 1988
Electronics Communication Act 2000
- Multiple ChoicePlease save your changes before editing any questions.
Select two valid ethical considerations for cloud storage.
Environmental: Storing and retrieving data on the cloud uses energy.
Robustness: Your data might get lost on the cloud
Cost: Cloud storage might require a monthly subscription cost
Privacy: You have less control over where your data is stored.