Binary Conversion, Character Sets and Compression

What is the decimal equivalent of the binary number 1010?

• 10
• 8
• 12
• 14

Which of the following is the hexadecimal representation of the decimal number 255?

• FF
• F0
• 00
• AA

What is ASCII primarily used for?

• Video encoding
• Audio compression
• Storing images
• Representing text in computers

Which of the following statements about Unicode is true?

• It can represent characters from all languages
• It only supports English characters
• It is a type of binary code
• It is older than ASCII

How is the denary number 16 represented in binary?

• 10000
• 11100
• 10100
• 11000

What is lossless compression?

• Compression that allows original data to be perfectly reconstructed
• Compression that loses some data
• Compression that reduces file size by removing metadata
• Compression that is only applicable to images

What is the purpose of hexadecimal in computing?

• To simplify binary representation
• To store text
• To compress files
• To represent audio data

What does the term 'bit' stand for in computing?

• Bitrate index
• Binary data
• Basic integer
• Binary digit

Which of the following is a characteristic of lossy compression?

• Some data is permanently removed
• It preserves all original data
• It is slower than lossless compression
• It can only be used for text files

In binary, what is the value of the digit furthest to the left?

• It is ignored in calculations
• It has no value
• It represents the lowest value
• It represents the highest value