Representing Numbers and Characters ( Form 2, Computer Science)

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Quiz on encoding, bases, and ASCII basics.

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Representing Numbers and Characters ( Form 2, Computer Science)


Froggy Jumps Representing Numbers and Characters ( Form 2, Computer Science)Online version Quiz on encoding, bases, and ASCII basics. by YAKILI LMS 1 What is encoding in computing? a Changing file names automatically. b Converting data into a specific format for storage or transmission. c Printing characters on paper only. 2 Which is the main number system used in computing? a Decimal b Binary c Hexadecimal 3 What is base 2 called? a Binary b Octal c Hexadecimal 4 What is base 8 called? a Binary b Octal c Hexadecimal 5 What is base 16 called? a Octal b Binary c Hexadecimal 6 How do you count in base 2? 0, 1, ? a 2 b 10 c 11 7 What is the base-2 digit after 1? a 10 b 100 c 11 8 What is 1 in binary plus 1? a 11 b 01 c 10 9 Base 8 counting starts with which digits? a 0 to 7 b 1 to 8 c 0 to 9 10 Which digit set is used in base 16? a 0-9 and A-F b 0-9 and G-L c A-Z only 11 Convert decimal 5 to binary. a 101 b 110 c 1001 12 Convert decimal 8 to binary. a 1010 b 1000 c 100 13 Convert decimal 15 to binary. a 10001 b 1110 c 1111 14 Convert binary 1010 to decimal. a 10 b 8 c 5 15 Convert binary 1101 to decimal. a 13 b 9 c 14 16 Convert decimal 31 to hex. a 2F b 1E c 1F 17 What is ASCII? a A character encoding standard b A programming language c A network protocol 18 ASCII uses how many bits per character in standard form? a 16 b 7 c 8 19 What does ASCII 'A' represent in decimal? a 66 b 65 c 60 20 ASCII space character decimal value? a 32 b 64 c 16 21 Which is true about ASCII extension (8-bit) codes? a Uses only 6 bits b Removes digits 0-9 c Adds 128-255 range 22 What is the binary for ASCII 'A' (65 decimal)? a 01000001 b 10000010 c 00100001 23 What is the binary for ASCII '0' (48 decimal)? a 00111100 b 01000000 c 00110000 24 Which base converts from decimal to binary by repeated division? a Base 10 b Base 2 c Base 16 25 Which base converts from decimal to hexadecimal? a Base 8 b Base 2 c Base 16 26 Which operation converts binary to decimal? a Sum of bit values b Multiply by 2 c Subtract from 10 27 Which term describes encoding characters as numbers? a Data compression b Encryption c Character encoding 28 Which base uses digits 0-9 then A-F? a Octal b Binary c Hexadecimal 29 What is 0 in any base value? a Zero b One c Ten 30 Which base uses digits 0-7? a Binary b Octal c Hexadecimal 31 Which base uses digits 0-9 and A-Z? a Base-36 b Base-8 c Base-16 32 ASCII originally uses how many bits per char? a 8 b 9 c 7 33 Which base is primarily used for memory addresses in computers? a Hexadecimal b Octal c Binary 34 Binary 1111 equals decimal? a 16 b 15 c 14 35 What is the decimal value of binary 1001? a 9 b 10 c 8 36 Which encoding assigns a number to each ASCII character? a Data encoding b Character encoding c Voice encoding 37 Which is a common ASCII control character? a Line Feed b Space c Capital A 38 What does '01000001' in ASCII represent? a Number 1 b Letter a c Letter A 39 Base-16 digit for decimal 10? a K b A c G 40 Decimal 0 to binary is? a 1 b 10 c 0 41 What does ASCII code 32 represent? a Exclamation b Space c Comma 42 What is binary 0 in decimal? a 2 b 1 c 0 43 Which base counts 0-1 only? a Hexadecimal b Decimal c Binary 44 Which system uses 16 symbols for digits? a Binary b Hexadecimal c Octal 45 Which encoding maps characters to numbers? a ASCII b Morse c ZIP 46 Which base would use digits 0-9 only? a Decimal b Binary c Hexadecimal 47 Convert decimal 2 to binary. a 11 b 10 c 2 48 Which is true about ASCII 65? a Represents '0' b Represents 'A' c Represents 'a' 49 What is 111 in binary in decimal? a 7 b 9 c 6 50 In ASCII, which value is a newline? a 10 b 13 c 32

Representing Numbers and Characters ( Form 2, Computer Science)

Froggy Jumps

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Representing Numbers and Characters ( Form 2, Computer Science)Online version

by YAKILI LMS

What is encoding in computing?

Which is the main number system used in computing?

What is base 2 called?

What is base 8 called?

What is base 16 called?

How do you count in base 2? 0, 1, ?

What is the base-2 digit after 1?

What is 1 in binary plus 1?

Base 8 counting starts with which digits?

Which digit set is used in base 16?

Convert decimal 5 to binary.

Convert decimal 8 to binary.

Convert decimal 15 to binary.

Convert binary 1010 to decimal.

Convert binary 1101 to decimal.

Convert decimal 31 to hex.

What is ASCII?

ASCII uses how many bits per character in standard form?

What does ASCII 'A' represent in decimal?

ASCII space character decimal value?

Which is true about ASCII extension (8-bit) codes?

What is the binary for ASCII 'A' (65 decimal)?

What is the binary for ASCII '0' (48 decimal)?

Which base converts from decimal to binary by repeated division?

Which base converts from decimal to hexadecimal?

Which operation converts binary to decimal?

Which term describes encoding characters as numbers?

Which base uses digits 0-9 then A-F?

What is 0 in any base value?

Which base uses digits 0-7?

Which base uses digits 0-9 and A-Z?

ASCII originally uses how many bits per char?

Which base is primarily used for memory addresses in computers?

Binary 1111 equals decimal?

What is the decimal value of binary 1001?

Which encoding assigns a number to each ASCII character?

Which is a common ASCII control character?

What does '01000001' in ASCII represent?

Base-16 digit for decimal 10?

Decimal 0 to binary is?

What does ASCII code 32 represent?

What is binary 0 in decimal?

Which base counts 0-1 only?

Which system uses 16 symbols for digits?

Which encoding maps characters to numbers?

Which base would use digits 0-9 only?

Convert decimal 2 to binary.

Which is true about ASCII 65?

What is 111 in binary in decimal?

In ASCII, which value is a newline?