Understanding ASCII and Unicode (video)

What decimal number is associated with the uppercase letter 'A'?

• 67

• 65

• 66

• 64

How many bits are used in ASCII to represent each character?

• 8 bits

• 6 bits

• 9 bits

• 7 bits

What is the maximum number of characters ASCII can represent?

• 128

• 127

• 256

• 255

Which of the following is NOT a character represented in standard ASCII?

• Backspace

• Emoji

• Enter key

• Capital A

What does Unicode use to represent more characters than ASCII?

• More bits

• More tables

• Encryption

• Compression

Which of the following is true about Unicode compared to ASCII?

• Uses only 7 bits

• Supports more characters

• Cannot represent emojis

• Uses fewer characters

What is the maximum number of different characters Unicode can support using 32 bits?

• Over 20 million

• Over 2 billion

• Over 2 million

• Over 200 thousand

When saving a single 'A' character in notepad, how many bytes is the file size?

• 1 byte

• 2 bytes

• 8 bytes

• 4 bytes

What happens when you save a smiley face character in notepad using Unicode?

• File size is 1 byte

• File size is 4 bytes

• File size does not change

• File size is 2 bytes

What is the primary advantage of using Unicode over ASCII?

• Smaller file sizes

• Support for fewer characters

• Support for a vast range of characters

• Faster processing speeds