30 Questions
| Total Attempts: 188

Questions and Answers

- 1.How many bits are there in 1 nibble?
- A.
2

- B.
4

- C.
6

- D.
8

- 2.How many bits are there in 1 byte?
- A.
2

- B.
4

- C.
6

- D.
8

- 3.How many bytes are there in 1 megabyte? [Blank]
- 4.Add the binary numbers 00111111 and 01001100: [Blank] Give your answer as an 8 bit binary number.
- 5.What is the denary representation for binary 01001111? [Blank]
- 6.Add the binary numbers 10111011 and 00101101: [Blank] Give your answer as an 8 bit binary number.
- 7.What is the 8 bit binary representation for hexadecimal A3? [Blank]
- 8.What is the 8 bit binary representation for 134? [Blank]
- 9.Convert the denary number 167 into hexadecimal: [Blank]
- 10.Convert the hexadecimal number D7 into denary: [Blank]
- 11.Base 2 number system used by computers. Uses 1s and 0s:
- A.
Binary

- B.
Denary

- C.
Hexadecimal

- 12.Base 16 number system. Uses digits 0-9 and A-F:
- A.
Binary

- B.
Denary

- C.
Hexadecimal

- 13.Base 10 number system. The system we use to count:
- A.
Binary

- B.
Denary

- C.
Hexadecimal

- 14.Strings are formed on a computer by joining bytes that represent different letters together. Name the character encoding standard that enables up to 128 different commonly used characters, numbers and symbols to be used: [Blank]
- 15.Using the ASCII table to work out the following word: 01101000 01100101 01101101 01100101 01101110 [Blank]
- 16.True or false? ASCII has a limited character set of 128 character.
- A.
True

- B.
False

- 17.True or false? ASCII accommodates all language character sets.
- A.
True

- B.
False

- 18.True or false? Unicode is a alternative to ASCII and has 4 billion possible characters.
- A.
True

- B.
False

- 19.The picture shows a black and white image. Assuming that black is stored as 1 and white is stored as 0, express the image as a binary string (2 bytes), which is how it would be represented on a computer: [Blank] Write your answer as 2 bytes separated with a single space, e.g: 01010101 01010101
- 20.What is the term given to a single dot of colour in a picture?
- A.
Dot

- B.
Spot

- C.
Pixel

- D.
Bit

- 21.A sound card in a computer works by converting analogue sound to what?[Blank]
- 22.Identify the units usually referred to when recording sound:
- A.
Bytes

- B.
Kilobytes

- C.
Hertz

- D.
Kilohertz

- 23.Select all the reasons for using compression on a computer:
- A.
To improve download/transfer speeds

- B.
To reduce storage space required

- C.
To make it easier to find files

- D.
To make it quicker to save files

- 24.Select all of the disadvantages to choosing lossy compression over lossless when compressing an image file:
- A.
The image file cannot be restored to original.

- B.
The quality of the image will be reduced

- C.
The image will be quicker to download/transfer

- D.
The file size will be significantly reduced

- 25.True or false? Lossy and Lossless are the two main methods used for file compression.
- A.
True

- B.
False

- Algebra Quizzes
- Arithmetic Quizzes
- Calculus Quizzes
- Data Handling Quizzes
- Discrete Mathematics Quizzes
- Equation Quizzes
- Fraction Quizzes
- Function Quizzes
- Geometry Quizzes
- Graph Quizzes
- Measurement Quizzes
- Multiplication Quizzes
- Percentage Quizzes
- Probability Quizzes
- Problem Solving Quizzes
- Ratio Quizzes
- Shape Quizzes
- Statistics Quizzes
- Trigonometry Quizzes

×

Wait!

Here's an interesting quiz for you.