Computer Hardware & Networking Basics

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Questions and Answers

Which component is most accurately described as the 'brain' of a computer, responsible for executing instructions?

  • GPU (Graphics Processing Unit)
  • RAM (Random Access Memory)
  • Hard Drive
  • CPU (Central Processing Unit) (correct)

Which type of memory is volatile, meaning it loses its data when the computer is turned off?

  • Solid State Drive (SSD)
  • Read-Only Memory (ROM)
  • Random Access Memory (RAM) (correct)
  • Hard Disk Drive (HDD)

What is the primary function of an operating system (OS)?

  • To run specific application software such as games.
  • To create documents and spreadsheets.
  • To browse websites on the internet.
  • To manage computer hardware and software resources. (correct)

Which of the following is the most appropriate use of application software?

<p>Performing specific tasks such as word processing or web browsing. (C)</p>
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What is the main purpose of a computer network?

<p>To connect computers so they can communicate and share resources. (D)</p>
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Which network type is typically used to connect devices within a single home or small office?

<p>Local Area Network (LAN) (B)</p>
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What device forwards data packets between different networks?

<p>Router (B)</p>
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In a star topology, what is the central component to which all devices are connected?

<p>Hub or Switch (A)</p>
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Which of the following describes a computer network which spans across cities and countries?

<p>Wide Area Network (WAN) (D)</p>
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What is the purpose of an IP address?

<p>To uniquely identify a device on a network. (B)</p>
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Which protocol is used for securely transferring web pages?

<p>HTTPS (A)</p>
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What is the primary function of a firewall in network security?

<p>To block unauthorized access to a network. (B)</p>
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In the context of network security, what does encryption achieve?

<p>It converts data into an unreadable format to protect its confidentiality. (A)</p>
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Which of the following is an example of cloud computing?

<p>Accessing software and data over the internet. (D)</p>
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Which action demonstrates the ethical use of technology?

<p>Respecting intellectual property rights and avoiding plagiarism. (A)</p>
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What does the acronym IoT stand for in the context of emerging technologies?

<p>Internet of Things (C)</p>
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Which technology creates immersive digital environments?

<p>Virtual Reality (VR) (B)</p>
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How does a switch differ from a router in a computer network?

<p>A router connects different networks, while a switch connects devices within the same network. (A)</p>
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What is the key benefit of using a Virtual Private Network (VPN)?

<p>It creates a secure connection over a public network. (C)</p>
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What is Blockchain primarily used for?

<p>Storing and managing data in a decentralized and immutable ledger. (D)</p>
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Flashcards

Information Technology (IT)

Using computers to store, retrieve, transmit, and manipulate data.

Computer Network

Two or more computers connected to share resources.

Hardware

Physical components of a computer system.

CPU (Central Processing Unit)

The 'brain' of the computer; executes instructions and calculations.

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RAM (Random Access Memory)

Volatile memory for temporary data storage during operation.

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Storage Devices

Devices that provide long-term data storage.

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Software

Sets of instructions (programs) that tell the computer what to do.

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System Software

Software that manages hardware and software resources.

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Application Software

Software for specific user tasks (e.g., word processing, web browsing).

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Operating System (OS)

Core software that manages computer hardware and software.

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Application Software

Designed to perform specific tasks for users.

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Computer Network

Interconnected computers that can communicate and share resources.

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Local Area Network (LAN)

Network connecting devices in a limited area like a home or school.

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Wide Area Network (WAN)

Network that spans a large geographical area (e.g., cities, countries).

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Network Interface Card (NIC)

Hardware that allows a computer to connect to a network.

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Router

Forwards data packets between networks.

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Switch

Connects devices within a network, forwarding data to the recipient only.

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IP Address

A numerical label assigned to each device on a network.

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Network Protocols

Rules for how data is transmitted and received over a network.

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Network Security

Protects a network and its data from unauthorized access.

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Study Notes

The provided text is identical to the existing notes. No updates are necessary.

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