Mastering Computer Concepts

What is the primary function of an operating system?

• To enhance the graphical user interface of applications.

• To provide internet connectivity to devices.

• To store and retrieve data from the cloud.

• The primary function of an operating system is to manage computer hardware and software resources.

Name three popular operating systems.

• Microsoft Windows, macOS, Linux

• Android

• Chrome OS

• iOS

What is the purpose of a network protocol?

• To establish rules for communication between devices on a network.

• To manage the physical layout of a network.

• To increase the speed of data transfer between devices.

• To provide security features for network devices.

Define the term 'IP address'.

• An IP address is a unique numerical label assigned to each device on a network, used for identifying and locating the device.

• A physical cable connecting devices in a network.

• A method for encrypting data on a network.

• A type of software used for network management.

What is the difference between TCP and UDP?

• TCP is faster and connectionless; UDP is reliable and connection-oriented.

• TCP is reliable and connection-oriented; UDP is faster and connectionless.

• UDP guarantees data delivery while TCP does not.

• TCP and UDP are both connection-oriented protocols.

What does DNS stand for and what is its function?

• Domain Name System

• Data Network System

• Domain Naming System

• Domain Name Service

What is the main purpose of a programming language?

• To store data in databases efficiently.

• To create graphical user interfaces for applications.

• The main purpose of a programming language is to facilitate communication between humans and computers.

• To enhance the performance of hardware components.

Name two high-level programming languages.

• Python, Java

• C++, Ruby

• HTML, CSS

• Swift, Kotlin

What is the difference between compiled and interpreted languages?

• Interpreted languages are faster than compiled languages due to their execution method.

• Compiled languages require a virtual machine to run, while interpreted languages do not.

• Compiled languages are executed line-by-line at runtime, while interpreted languages are pre-compiled to machine code.

• Compiled languages are pre-compiled to machine code, while interpreted languages are executed line-by-line at runtime.

What is a relational database?

• A relational database is a database that organizes data into tables with defined relationships between them.

• A relational database is a collection of unstructured data.

• A relational database is a system that only stores images and videos.

• A relational database is a type of cloud storage service.