programming fundamentals

Question 1

What is a variable?

Answer 1

It is a named memory address that holds a value.

Question 2

What do you call a variable name?

Answer 2

Identifier

Question 3

What criteria must a variable meet?

Answer 3

1. it can contain letters and numbers, but cannot start with a number.
2. must contain a letter
3. cannot contain special letters
4. it should contain lower case letters
5. it should represent the value it is holding

Question 4

What is an integer?

Answer 4

A whole number.

Question 5

What is a float?

Answer 5

Decimal numbers.

Question 6

What is a character?

Answer 6

A single alphanumeric character.

Question 9

Define algorithm.

Answer 9

A step-by-step procedure for solving a problem or performing a task.

Question 10

True or false: Variables can store different types of data.

Answer 10

TRUE

Variables can hold integers, strings, booleans, and more.

Question 11

Fill in the blank: A loop is used to _______ a set of instructions repeatedly.

Answer 11

execute

Question 12

What is a function in programming?

Answer 12

A reusable block of code that performs a specific task.

Question 13

Define syntax.

Answer 13

The set of rules that defines the combinations of symbols in a programming language.

Question 14

What does debugging mean?

Answer 14

The process of identifying and removing errors from computer code.

Question 15

True or false: Comments in code are executed by the program.

Answer 15

FALSE

Comments are ignored by the compiler or interpreter.

Question 16

Fill in the blank: A conditional statement allows the program to _______ based on a condition.

Answer 16

branch

Question 17

What is a data structure?

Answer 17

A way of organizing and storing data for efficient access and modification.

Question 18

Define array.

Answer 18

A collection of items stored at contiguous memory locations.

Question 19

What is iteration?

Answer 19

The repetition of a process or set of instructions in programming.

Question 20

True or false: Object-oriented programming focuses on objects rather than actions.

Answer 20

TRUE

It emphasizes encapsulation, inheritance, and polymorphism.

Question 21

Fill in the blank: A boolean data type can hold _______.

Answer 21

true or false

Question 22

What is compilation?

Answer 22

The process of converting source code into executable code.

Question 23

Define syntax error.

Answer 23

An error in the code that violates the rules of the programming language.

Question 24

What is a loop control variable?

Answer 24

A variable that determines how many times a loop will execute.

Question 25

True or false: Recursion is a function that calls itself.

Answer 25

TRUE ## Footnote It is often used to solve problems that can be broken down into smaller subproblems.

Question 26

Fill in the blank: A string is a sequence of _______.

Answer 26

characters

Question 27

What is inheritance in programming?

Answer 27

A mechanism where a new class derives properties from an existing class.

Question 28

Define variable scope.

Answer 28

The context in which a variable is accessible within the code.

Question 29

What does API stand for?

Answer 29

Application Programming Interface.

Question 30

True or false: exception handling is used to manage errors in code.

Answer 30

TRUE ## Footnote It allows the program to continue running or to fail gracefully.

Question 31

Fill in the blank: A library is a collection of pre-written _______.

Answer 31

code functions

Question 32

What is a syntax highlighting feature?

Answer 32

A feature that displays code in different colors and fonts according to its syntax.

Question 33

Define input/output (I/O).

Answer 33

The communication between an information processing system and the outside world.

Question 34

What is software development life cycle (SDLC)?

Answer 34

A process for planning, creating, testing, and deploying software.