Test cards

Question 1

What is the purpose of the CPU in a computer system?

Answer 1

“The CPU (Central Processing Unit) performs calculations and executes instructions to run programs and manage hardware operations.”

Question 2

What does RAM stand for, and what is its function?

Answer 2

“RAM stands for Random Access Memory. It provides temporary storage for data and instructions that the CPU needs while performing tasks.”

Question 3

Explain what an algorithm is.

Answer 3

“An algorithm is a step-by-step procedure or formula for solving a problem or performing a task.”

Question 4

What is the difference between a compiler and an interpreter?

Answer 4

A compiler translates the entire source code into machine code at once, while an interpreter executes the code line by line

Question 5

Define ‘object-oriented programming’ (OOP).

Answer 5

“Object-oriented programming is a paradigm based on the concept of ‘objects

Question 6

What is a ‘class’ in OOP?

Answer 6

“A class is a blueprint for creating objects

Question 7

What is ‘inheritance’ in object-oriented programming?

Answer 7

“Inheritance is a mechanism where one class (child class) acquires the properties and behaviors of another class (parent class).”

Question 8

Describe what a ‘data structure’ is.

Answer 8

“A data structure is a way of organizing and storing data so that it can be accessed and modified efficiently.”

Question 9

Give an example of a linear data structure.

Answer 9

“An example of a linear data structure is an array or a linked list.”

Question 10

What is ‘big O notation’ used for?

Answer 10

“Big O notation is used to describe the performance or complexity of an algorithm

Question 11

What does ‘normalization’ mean in database design?

Answer 11

“Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.”

Question 12

What is a ‘primary key’ in a relational database?

Answer 12

“A primary key is a unique identifier for a record in a database table

Question 13

Explain what ‘network topology’ refers to.

Answer 13

“Network topology refers to the physical or logical arrangement of network devices and cables

Question 14

What is ‘encryption’ and why is it important?

Answer 14

“Encryption is the process of converting data into a coded format to prevent unauthorized access. It is important for securing sensitive information.”

Question 15

Define ‘machine code’.

Answer 15

“Machine code is the lowest-level programming language

Question 16

What is a ‘software development life cycle’ (SDLC)?

Answer 16

“The software development life cycle is a process for planning

Question 17

What does ‘API’ stand for, and what is its purpose?

Answer 17

API stands for “Application Programming Interface”, and its purpose is to enable different software applications to communicate and interact with each other by defining a set of rules and protocols.

Question 18

Explain ‘polymorphism’ in OOP.

Answer 18

Polymorphism in OOP allows objects of different classes to be treated as instances of the same superclass, with methods behaving differently based on the object’s actual class.