Data representation

What does ASCII stand for?

• American Standard Code for Information Interchange

• American System Code for Internet Interchange

• Advanced Standard Code for Information Interchange

• American Standard Code for International Interchange

How many bits does the ASCII system use?

• 7 bits

• 8 bits

• 6 bits

• 5 bits

What is the total number of codes in the ASCII character set?

• 127

• 95

• 256

• 128

How many bits does Unicode use to represent characters?

• A) 8 bits

• B) 16 bits

• C) 32 bits

• D) 64 bits

What is the purpose of Unicode?

• A) To compress data

• B) To accommodate various languages

• C) To replace numbers with symbols

• D) To increase processing speed

What is the main purpose of compression software?

• To increase the size of files

• To reduce the size of files

• To delete files permanently

• To enhance file security

Which of the following is a reason for reducing the size of a file?

• To increase storage space requirements

• To slow down download times

• To improve online experience

• To decrease streaming speeds

What is a characteristic of lossy compression?

• Data is temporarily removed and then rebuilt

• Data is permanently removed, reducing file size

• File quality is improved

• File size is increased

Which type of compression allows the file to be exactly recreated?

• Lossy Compression

• Lossless Compression

• Permanent Compression

• Temporary Compression

Why is lossy compression often used for images on websites?

• It increases the image quality

• It reduces page load speeds

• It reduces file size without impairing overall quality

• It makes images unviewable