J277 Data Representation MCQs

How many bytes are there per ASCII character in a text file? (1-3)

• 0.5
• 1
• 1.5
• 2

Which is the smallest of these data capacities? (4-6)

• 2KB
• 2049 bytes
• 0.5MB
• 3GB

Which is the largest of these data capacities? (4-6)

• 2048 MB
• 2 GB
• 2050 MB
• 100000 KB

Which formulae can be used to estimate the file size of an image? (7-9)

• number of pixels * number of bytes per pixel
• number of pixels
• number of pixels wide * number of pixels high * number of bytes per pixel
• number of pixels wide * number of bytes per pixel * number of pixels

Which formulae can be used to estimate the file size of a sound file? (7-9)

• bytes per sample * channels * height + number of minutes
• samples per second * number of seconds
• samples per second * bytes per sample * duration
• samples per second * bit depth * duration

What numeric base does binary operate on? (1-3)

• 2
• 1
• 8
• 16

How many bits are there in a byte? (1-3)

• 8
• 16
• 1
• 2

What is the minimum number of bits needed to represent 15 in denary? (4-6)

• 6
• 4

What is the 8 bit binary representation of 17? (4-6)

• 00010010

• 00010001

• 00001101

• 00100010

What is the 8 bit binary representation of 32? (4-6)

• 00100000

• 00100100

• 00110000

• 00100001