Title: Numbers
Course: Quiz Statistics Report Test Course

Q: Match up the following denary values with their equivalent value in binary
- The value "0" in denary is represented in binary as | 0
- The value "1" in denary is represented in binary as | 1
- The value "2" in denary is represented in binary as | 10
- The value "3" in denary is represented in binary as | 11
- The value "5" in denary is represented in binary as | 101
- The value "8" in denary is represented in binary as | 1000
- The value "9" in denary is represented in binary as | 1001
- The value "10" in denary is represented in binary as | 1010
Also offered: 1111; 02; 501; 11111

Q: Match up the following hexadecimal values with their equivalent values:
- The value "0" in hex is represented in binary as | 0
- The value "1" in hex is represented in denary as | 1
- The value "A" in hex is represented in denary as | 10
- The value "B" in hex is represented in denary as | 11
- The value "5" in hex is represented in binary as | 101
- The value "10" in hex is represented in binary as | 10000
- The value "9" in hex is represented in binary as | 1001
- The value "A" in denary is represented in binary as | 1010
Also offered: 1111; FF; E; 11111

Q: How would you express the binary number 0101 in denary?
- 5
- 12
- 2
- 22
- 101
A: 5

Q: How would you express the 8 bit number 01100001 in denary?
- 97
- 42
- 255
- 0
- 49
A: 97

Q: What is the full range of numbers that can be represented by 8 bit binary?
- 0 to 255
- 1 to 256
- 1 or 0
- 0 and 1
- 1 to 255
A: 0 to 255

Q: How would you express the denary number '254' in 8 bit binary?
- 11111110
- 10101010
- 11111111
- 11111101
- 11111011
A: 11111110

Q: How would you express the denary number 9 in 8 bit binary?
- 00001001
- 00001011
- 00001111
- 00011001
- 10001011
A: 00001001

Q: What would the answer be if you were to add the binary values 1111 and 0110?
- 10101
- 11101
- 1111
- 11101
- 101010
A: 10101

Q: What would the answer be if you were to add 1001 and 0110?
- 1111
- 1010
- 0101
- 0000
- 11011
A: 1111

Q: Which of the following is the correct Computing term used to describe numbers with a decimal point?
- floating point numbers
- whole number integers
- whole integer numbers
- decimal integers
- integer points
- bloated numbers
- floating integers
A: floating point numbers

Q: What denary number is expressed by the Hex value xFF ( or #FF or FF) ?
- 255
- 256
- 156
- 01010001
- 00001111
A: 255

Q: Which of the following best describes what an integer is?
- a whole number with no fractional elements
- any number with a decimal point
- any number between 0 and 99
- any number between 1 and 99
- only 1 or 0
- a number between 1 and 99 with a decimal point
- a number between 1 and 99 with no floating point
A: a whole number with no fractional elements

Q: Sometimes when adding two 8 bit binary integers together it is not possible to represent the sum as it is greater than the maximum value that can be shown.

If a number is too large to be represented in 8 bit binary we call this:
- overflow
- overload
- maximum load
- overloaded
- feedback
- integer outflow
A: overflow

Q: You do not always need to write the leading zeros in binary numbers for them to be valid but we tend to write groups of 8 bits because computers usually store data in bytes.

For example:

00000011 is binary for 3 but so is 11.
- True
- False
A: True

Q: Some computers are not able to store binary numbers as individual bits because there are just too many pieces of information for the computer to store.

The hexadecimal (or Base 16) number system was introduced to enable computers to store and remember numbers more easily. Since there are less numbers for the computers to store, it means that computers are less likely to make mistakes. Hexadecimal numbers can be processed faster by computers so this makes the computers faster and more reliable.

So, instead of a computer storing a number as 0 1 0 1 1 0 1 1 it would store it as 5 B instead.
- True
- False
A: False