WorksheetsUnit 6 - Communication
Total questions: 10
Worksheet time: 5mins
With asynchronous transmission, data is sent as a continuous stream, with no gaps in data.
True
False
With asynchronous transmission, how does a device identify the beginning and end of a data packet?
By including start and stop bits in the data packets.
By syncing the internal clocks of the devices.
By closing the transmission connection after the packet completion.
They don't mark the beginning and end of data packets.
Which of the following are reasons why serial transmission is better over longer distances than parallel transmission?
Choose two options.
Data is sent in a specific order, whereas parallel transmission can lead signal skewing where the bits don’t arrive at the same time.
As data can be sent at higher frequencies, this means the range of the transmission is much greater.
Due to only having one wire, we don’t suffer from crosstalk, where data transfers between channels leading to corruption of the data.
As parallel transmission uses multiple wires, this can lead to longer cables becoming twisted and damaged.
As serial transmission sends data one bit at a time, it can only send data in one direction.
True
False
How much delay there is in your internet connection
Latency
Bandwidth
What is the Baud rate?
The number of signal changes per second
The number of bits transmitted per second
The difference in time between sending and receiving data
A set of rules that allows devices to communicate
What is skew?
Where bits arrive at different times
Error checking
Another name for a start or stop bit
