WorksheetsTest 5
Total questions: 12
Worksheet time: 16mins
One place left shift on a binary number...
doubles the number.
halves the number.
All data must be converted into...
a binary format to be processed by a computer.
a hexadecimal format to be processed by a computer.
How many bits are in a kilobyte?
8000
1000
4
An image's creation date, time and location are all types of metadata.
True
False
Which of these hexadecimal numbers is the largest?
23
1F
2A
The process of converting an analogue signal to a digital signal is known as...
compression
re-coding
sampling.
Hexadecimal numbers are often used by programmers instead of binary numbers because...
there are fewer hexadecimal numbers than binary numbers.
they are shorter, which makes them easier to remember.
Increasing the number of bits used for each pixel in an image will...
increase the range of colours that the image can display.
decrease the resolution of the image.
have no effect on the file size.
Ben opens a text file. It contains 30 characters, as shown below. Each character is represented using the ASCII character set. The binary representation for the character 'y' is 01111001. What is the binary representation for the character 'z'?
Calculate the size of the text file in bits.
Convert the hexadecimal number 5E into binary.
A singer is recording the vocal tracks for their new album. A sound engineer increases the sample rate and bit depth of the recordings. Outline one benefit and one drawback of these changes. Benefit: [Your answer here] Drawback: [Your answer here]
