Data Representation Quiz

What is binary representation?

• A numerical system that uses only three digits, 0, 1, and 2, to represent all numbers and data.

• A numerical system that uses only four digits, 0, 1, 2, and 3, to represent all numbers and data.

• A numerical system that uses only five digits, 0, 1, 2, 3, and 4, to represent all numbers and data.

• A numerical system that uses only two digits, 0 and 1, to represent all numbers and data.

Convert the decimal number 10 to binary.

• 1010

• 1000

• 1100

• 1111

What is hexadecimal representation?

• Binary number system

• Base-16 number system

• Base-8 number system

• Base-10 number system

Convert the binary number 1010 to hexadecimal.

• B

• A

• 14

• C

What are data compression techniques used for?

• To reduce the size of data files or streams.

• To improve the quality of data files or streams.

• To encrypt data files or streams.

• To increase the size of data files or streams.

Name one lossless data compression technique.

• Lempel-Ziv-Welch

• Huffman coding

• Run-length encoding

• Arithmetic coding

What are data storage formats?

• Ways in which data is organized and stored in a computer system.

• Strategies for backing up data.

• Methods used to transfer data between devices.

• Techniques for encrypting data.

Give an example of a data storage format.

• TXT

• XML

• CSV

• JSON

Perform binary addition for the numbers 101 and 110.

• 1001

• 1111

• 1011

• 1000

What is the result of binary addition for the numbers 1111 and 1010?

• 10001

• 11001

• 10101

• 11111