Data Representation Quiz

Calculate 25 - 30 using 8-bit two's complement binary for subtraction. What is the binary result?

Why can't 7-bit ASCII represent characters from most non-English languages?

• It does not provide enough unique codes

• It is only binary, not decimal

• It lacks graphics symbols

• It only supports capital letters

What is the decimal equivalent of the 8-bit binary number 0011 0100?

• 34

• 52

• 54

• 48

Why might lossless compression be preferred over lossy compression for text files?

• It reduces the file size more significantly

• It allows for easier editing post-compression

• It preserves all original data

• It is faster to compress and decompress

Which of the following best defines a 'pixel'?

• The smallest component of a digital image

• A unit of digital storage

• A type of computer virus

• The basic unit of a program

If a pixel in an image uses 8 bits for its color depth, how many different colors can it display?

• 256

• Account the number of bits used for the color depth determines the range of colors available in an image.

• 128

• 512

How many different values can be represented with 6 bits?

• 32

• 64

• 48

• 16

What is the result of a single logical shift right on the 8-bit binary pattern 1101 1001?

• 0110 1100

• 0110 1101

• 1110 1100

• 1110 1101

Which of the following represents the number 45 in 8-bit binary?

• 0010 1101

• 0011 0101

• 1100 0101

• 1101 0010

Which 4-bit binary addition will result in an overflow error?

• 1001 + 0111

• 1010 + 0101

• 1101 + 0011

• 1110 + 0001