Computer Science Fundamentals

What is the purpose of a variable in programming?

• To create user interfaces in applications.

• The purpose of a variable in programming is to store and manage data.

• To define the structure of a program.

• To execute functions in programming.

Explain the difference between a stack and a queue.

• A stack uses LIFO, while a queue uses FIFO.

• Both stack and queue use LIFO.

• A stack allows random access, while a queue does not.

• A stack uses FIFO, while a queue uses LIFO.

What are the main components of a web application?

• Design, Hosting, Security, Content Management

• Client-Side, Network, Storage, Framework

• User Interface, Server, Database, Application Logic

• Frontend, API, Middleware, Cache

What is the principle of least privilege in network security?

• The principle of least privilege is a security concept that limits user and system access rights to the bare minimum necessary.

• It requires all users to have the same access rights.

• It allows users unrestricted access to all system resources.

• It is a method for increasing user permissions as needed.

Define normalization in the context of database design.

• Normalization is the method of encrypting database information.

• Normalization is the process of structuring a relational database to reduce data redundancy and improve data integrity.

• Normalization is the process of combining all data into a single table.

• Normalization increases data redundancy for faster access.