4.5.5 Information Coding Systems

Question 1

What is meant by character codes?

Answer 1

A decimal digit used to represent a letter

Question 2

What does ASCII stand for?

Answer 2

American Standard Code for Information Interchange

Question 3

How many bits does ASCII use?

Answer 3

7 bits

Question 4

What is the primary disadvantage of majority voting?

Answer 4

The volume of data being transmitted is greater, therefore the time take to transmit the data is also greater.

Question 5

What uses more bits ASCII or Unicode

Answer 5

Unicode 16 bits

Question 6

01101011 is being transmitted using odd parity. What would the parity bit be?

Answer 6

0

Question 7

Which can represent a greater volume of characters ASCII or Unicode?

Answer 7

Unicode, can represent multiple languages, emojis and symbols.

Question 8

Which form of error checking can correct errors in transmission?

Answer 8

Majority Voting
Majority Voting sends multiple copies of the same piece of data and it takes and uses the data that occurred more frequently

Question 9

1011 using even parity what would the parity bit be?

Answer 9

1

Question 10

What happens if the checksum doesn’t match the received data?

Answer 10

The recipient asks the user to retransmit the data.