security and other computing basics Flashcards
What is a variable?
A name for a storage.
What is a sequence?
The order in which instructions are executed.
What is a condition?
Something that determines if something else is true or false.
What is a selection?
Something that involves making a decision based on a condition, leading to different pathways.
What is an iteration?
A loop.
What is an assignment?
When you give a value to a variable.
What is a Modularisation?
When you break a program down into smaller pieces.
What is the symbol for addition used in JavaScript?
+
What is the symbol for subtraction used in JavaScript?
-
What is the symbol for multiplication used in JavaScript?
*
What is the symbol for division used in JavaScript?
/
What is the symbol for finding the remainder used in JavaScript?
%
What is the symbol that is used for start/end in a flowchart?
Oval
What is the symbol that is used for input/output in a flowchart?
Parallelogram
What is the symbol that is used for Process in a flowchart?
Square
What is the symbol that is used for decision in a flowchart?
Diamond
What are the two types of encryption?
Symmetric and Asymmetric encryption.
What makes a strong password?
12-14 characters long
combination of uppercase and lower cans letters, numbers and symbols
not a word that can be found in the dictionary
different from previous passwords
easy for you to remember but hard for others to guess
not previously used.
What does a hash do?
It turns information into a unique scrambled code
What is frequency analysis?
It is the study of the frequency of letters.
What is a frequency analysis used for?
It is used forbreaking cipher texts.
What is compression?
Compression is a technique used to reduce the size of data while preserving its information.
What are the two main types of compression?
Lossless compression and lossy compression.
What is the difference between the two types of compression?
lossy compression loses some data while lossless compression doesn’t lose any data.
