WorksheetsS4D Computer Systems Quiz 2
Total questions: 20
Worksheet time: 10mins
What controls the sequencing of fetching, decoding and execution of instructions?
Arithmetic and Logic Unit
Control Unit
Sequencing Unit
Central Processing Unit
Which bus identifies the memory location that is going to be accessed?
Memory Bus
Location Bus
Address Bus
Data Bus
The Data Bus transfers data between which two components?
Processor and Memory
Input and Output
Memory and Backing Storage
Control Unit and Registers
What is the mantissa in the floating-point number 0.3854 x 104 ?
10,000
4
0.3854
3854
What is the exponent in the floating-point number 0.3854 x 104 ?
10,000
4
0.3854
3854
State a graphic file type suitable for storing an animated logo.
JIF
GIF
JPEG
BMP
Describe one method used to reduce the file size of a sound file without altering its running time.
Reduce the sampling rate
Save as MP3
Shorten the filename
Increase the sampling rate
In vector graphics, which object would define a blue circle?
line(3, 4, 7, 8, yellow, blue)
circle(3, 4, 4, yellow, 2, blue)
ellipse(3, 4, 4, 4, yellow, 2, blue)
polygon(3, 4, 5, 6, 6, 7, 3, 6, yellow, blue)
How can you reduce the power consumption of a modern computer?
Leave it on all the time
Use the sleep settings on the computer
Type more slowly
Shut it down every 10 minutes
Which of these is a type of security risk to your personal data?
Fishing
Wishing
Phishing
Dishing
How does a firewall protect a computer system from damage by unauthorised users?
Filters all incoming and outgoing internet traffic
Stops all outgoing internet traffic
Allows all incoming internet traffic
Allows all incoming and outgoing internet traffic
What is the process of coding a message so it can’t be understood if accessed by someone who should not be viewing it?
Decryption
Encoding
Decoding
Encryption
What does the 'S' in 'HTTPS' represent?
Slow
Shadow
Secure
Strong
What is the measure of the amount of carbon dioxide produced during the manufacture, use and disposal of a product?
Carbon footprint
Carbon footfall
Carbon creation
Carbon dating
