Exam questions Flashcards
1
Q
Explain what is meant by a MAC address (4)
A
Four from:
- Media Access Control (address)
- Used to identify a device
- It is a unique (address)
- It is a static address / It does not change
- It is set by the manufacturer
- The first part is the manufacturer ID/number/identifies the manufacturer
- The second part is the serial number/ID
2
Q
Where can hexadecimal be used?
A
- MAC addresses
- Colour codes / colours in HTML / CSS
- Error messages
- Locations in memory
- Memory dump / debugging
- IP address
- ASCII / Unicode
- Assembly language
- URL
3
Q
Name two components which use parallel transmission to send and receive data. Why is it safe for them to use parallel transmission?
A
- RAM, ROM, Registers (MAR, ALU, etc.)
- It is safe because it is over a short distance
4
Q
How many bits are transmitted in parallel in a single clock cycle on a high-end laptop today?
A
64 bits
5
Q
What transmission properties does a USB have?
A
- serial
- full duplex or half duplex
