Section 5 - Fundamentals of data representation Flashcards
1
Q
Ordinal number
A
A number used to identify position relative to other numbers
2
Q
Cardinal number
A
A number that identifies the size of something
3
Q
Array
A
A data structure where data items are grouped together under a single identifier and are then accessed based on their position
4
Q
What is a parity bit
A
A method of checking binary codes by counting the numbers of 1s and 0s in the code
5
Q
Even parity
A
It has a parity bit that it sets to 1 or 0 to make sure there is an even amount of 1s in the data
6
Q
Caesar cipher
A
A substitution cipher where one character of plaintext is substituted for another which becomes the cipher text.
7
Q
Computational security
A
A concept of how secure data encryption is
8
Q
Computational hardness
A
The degree of difficulty in cracking a cipher
