Computer Science

Question 1

Define Abstraction

Answer 1

Abstraction is removing all the unnecessary detail and only keeping what is needed.

Question 2

Define Decomposition

Answer 2

Decomposition is the breaking down a complex problem into smaller tasks to solve it more efficiently.

Question 3

What is AND gate

Answer 3

AND gates output 1 ONLY if both inputs are 1

Question 4

What is OR gate

Answer 4

OR gates output 1 if EITHER or BOTH inputs are 1

Question 5

What is NOT gate

Answer 5

NOT gates invert the input
for example if a one is inputted a 0 will be outputted
(the opposite)

Question 6

What are the 3 programming constructs?

Answer 6

Iteration
Selection
Sequence

Question 7

Define Iteration

Answer 7

Iteration is the repeated execution of a section of code when a program is running.

Question 8

Define Selection

Answer 8

Selection determines which path a program takes when it is running.

Question 9

Define Sequence

Answer 9

Sequence is the order in which instructions occuur and are processed.

Question 10

What are the 2 types of iteration?

Answer 10

Count-controlled Iteration
Condition-controlled Iteration

Question 11

Define Count-controlled iteration

Answer 11

Count-controlled iteration is repeatedly executes a section of code a fixed number of predetermined times.

Question 12

Define Condition-controlled iteration

Answer 12

Condition-controlled iteration is the repeatedly executes a section of code until a condition is met or no longer met.

Question 13

What are examples of high level language?

Answer 13

HTML
PHP
Typescript
Kotlin
Rust

Question 14

What are the 3 language translators?

Answer 14

Compiler
Interpreter
Assembler

Question 15

Define Assemble

Answer 15

Assembler translates assembly code to machine code.

Question 16

Define Interpreter

Answer 16

Interpreter translates code line by line slower but more flexible.

Question 17

Define Compiler

Answer 17

Compiler is a high level language translated/ compile all as one.

Question 18

What are the differences between complier and Interpreter?

Answer 18

Compiler is faster more efficient and consumes less time compared to an interpreter.

Question 19

What does IDE stand for?

Answer 19

Intergrated development environments

Question 20

What do IDES do?

Answer 20

Allows you to write code
Auto finds the syntax error
customise your code
helps with keyboard syntax

Question 21

What are SQLs used for

Answer 21

SQL is used to create or delete or modify or manipulate records in a database

Question 22

What are the 3 basic commands of SQL

Answer 22

SELECT
FROM
WHERE

Question 23

Define SELECT

Answer 23

SELECT chooses all fields

Question 24

Define FROM

Answer 24

FROM - which table database can have multiple tasks

Question 25

Define WHERE

Answer 25

WHERE - uused to set criteria

Question 26

What are the standard Algorithms?

Answer 26

Binary Search
Linear Search
Bubble Sort
Merge Sort
Iteration Sort

Question 27

What is the oval shape for in flowcharts?

Answer 27

Oval shapes represents the start or the end.

Question 28

What is the rectangle shape for in flowcharts?

Answer 28

Rectangle shapes are for processes.

Question 29

What is the diamond shape for in flowcharts?

Answer 29

Diamond shapes are for the decisions.

Question 30

What is the Paralellorgram shape for in flowcharts?

Answer 30

Paralelogram shape is used for input and outputs