Computer Networks: LAN, WAN, and Cloud Networks
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Questions and Answers

What is the primary purpose of a WAN?

  • To provide high-speed data transfer and full-time service connectivity
  • To connect LANs together and enable long-distance communication (correct)
  • To connect devices within a building or campus
  • To connect devices across a city, town, or other small region

    • What type of network is used to connect devices within a building or campus?

  • MAN
  • LAN (correct)
  • Cloud Network
  • WAN

    • What is the primary characteristic of a MAN?

  • Connects devices across continents
  • Provides high-speed data transfer and full-time service connectivity
  • Uses guided and unguided media
  • Connects devices across a city, town, or other small region (correct)

    • What is the Internet?

    <p>A worldwide network of interlinked computer networks (D)</p> Signup and view all the answers

    What is the primary advantage of a LAN?

    <p>It provides high-speed data transfer and full-time service connectivity (C)</p> Signup and view all the answers

    What type of network is used to connect devices across a city, town, or other small region?

    <p>MAN (C)</p> Signup and view all the answers

    What is a characteristic of Cloud Networks?

    <p>They are available on demand and can be hosted on public or private cloud service providers (D)</p> Signup and view all the answers

    What is a characteristic of WANs?

    <p>They are used to connect devices across continents and can use technologies like microwave, radio, and fiber optic (D)</p> Signup and view all the answers

    What is the primary function of an Access Point or Router in Wi-Fi technology?

    <p>To accept a wired Ethernet connection and convert it to a wireless connection (A)</p> Signup and view all the answers

    What type of waves are used to transmit networks in Wi-Fi technology?

    <p>Radio waves (C)</p> Signup and view all the answers

    What is the main host network that provides a network connection to the router in Wi-Fi?

    <p>Base station network or an Ethernet (802.3) connection (C)</p> Signup and view all the answers

    What is the purpose of a Sensor Network?

    <p>To monitor data in different locations and send it to a central location (C)</p> Signup and view all the answers

    What is the primary function of a web browser?

    <p>To facilitate user interaction with the World Wide Web's data (D)</p> Signup and view all the answers

    Which of the following is NOT a type of Electromagnetic wave?

    <p>Ethernet (D)</p> Signup and view all the answers

    What is the collective term for all public websites or web pages accessible on the internet?

    <p>World Wide Web (B)</p> Signup and view all the answers

    What is the primary function of a Vehicular Communication System?

    <p>To enable communication between vehicles and roadside units (A)</p> Signup and view all the answers

    What is the role of an Accessing Device in Wi-Fi technology?

    <p>To use Wi-Fi and surf the internet (D)</p> Signup and view all the answers

    What is the primary purpose of HTTP?

    <p>To specify communication between the browser and server (C)</p> Signup and view all the answers

    In what year was the World Wide Web originated?

    <p>1989 (D)</p> Signup and view all the answers

    What is the medium used in Wi-Fi technology to transmit data?

    <p>Radio frequencies (D)</p> Signup and view all the answers

    What is the function of URL?

    <p>To provide a system for resources on the web (D)</p> Signup and view all the answers

    What is the main difference between the World Wide Web and the Internet?

    <p>The World Wide Web is an interconnected network of websites, while the Internet connects computers (B)</p> Signup and view all the answers

    What is HTML used for?

    <p>To define the structure, organisation and content of a web page (B)</p> Signup and view all the answers

    What are the three components of the web?

    <p>URL, HTTP, and HTML (D)</p> Signup and view all the answers

    What is the primary objective of Computer Vision?

    <p>To collect information from images (C)</p> Signup and view all the answers

    Which of the following is NOT an application of Computer Vision?

    <p>Natural Language Processing (B)</p> Signup and view all the answers

    What is one of the stages involved in the Natural Language Processing process?

    <p>Data preprocessing (C)</p> Signup and view all the answers

    Which of the following is an application of Natural Language Processing?

    <p>Voice recognition (A)</p> Signup and view all the answers

    What is the primary focus of Natural Language Processing?

    <p>Enabling machines to understand and generate human language (C)</p> Signup and view all the answers

    What is one of the benefits of Natural Language Processing in businesses?

    <p>Simplifying complex tasks that involve language (D)</p> Signup and view all the answers

    What is an application of Computer Vision in smartphones?

    <p>Photo filters (D)</p> Signup and view all the answers

    What is NOT a stage involved in the Natural Language Processing process?

    <p>Data analysis (D)</p> Signup and view all the answers

    What should happen to an employee's data in all departments when they leave an organization?

    <p>It should be updated to reflect their status as JOB LEFT (A)</p> Signup and view all the answers

    What is meant by the term 'availability' in the context of information?

    <p>Data should be available when needed (B)</p> Signup and view all the answers

    Why is collaboration from different organizational teams necessary to access employee information?

    <p>To check employee leave records (C)</p> Signup and view all the answers

    What is the primary goal of Security Policies in an organization?

    <p>To comply and achieve cybersecurity goals (D)</p> Signup and view all the answers

    What is cybersecurity primarily concerned with protecting?

    <p>Systems, networks, and programs from digital attacks (C)</p> Signup and view all the answers

    What is the primary purpose of cybersecurity practice?

    <p>To defend against unauthorized access to critical information (D)</p> Signup and view all the answers

    What is malware primarily used to describe?

    <p>Malicious software, including spyware and ransomware (A)</p> Signup and view all the answers

    How do malware breaches typically occur?

    <p>When a user clicks a dangerous link or email attachment (B)</p> Signup and view all the answers

    Study Notes

    Types of Networks

    • LAN (Local Area Network): connects devices within a building or campus, often used in small offices or homes, providing high-speed data transfer and full-time service connectivity.
    • MAN (Metropolitan Area Network): connects devices across a city, town, or other small region, used to connect multiple LAN networks, providing high-speed regional resource sharing.
    • WAN (Wide Area Network): connects devices across continents, the largest networks, using technologies like microwave, radio, and fiber optic, compatible with various access lines, and having advanced security.

    The Internet

    • The Internet is a worldwide network of interlinked computer networks, communicating with other networks and devices using the TCP/IP Internet protocol suite.
    • It connects private, public, academic, corporate, and government networks, spanning local to global boundaries.
    • The Internet provides various information resources and services, including email, phone calls, file sharing, and the World Wide Web (WWW).

    World Wide Web (WWW)

    • The WWW is a network of interlinked websites and documents accessible via the Internet.
    • It originated in 1989 and uses protocols such as HTTP.
    • The WWW is a service contained inside the Internet infrastructure.

    Components of the Web

    • Uniform Resource Locator (URL): a system for resources on the web.
    • Hyper Text Transfer Protocol (HTTP): specifies communication between browsers and servers.
    • Hyper Text Markup Language (HTML): defines the structure, organization, and content of a web page.

    Wi-Fi

    • Wi-Fi is a wireless networking technology, using radio frequencies to transmit data in a circular range.
    • It uses electromagnetic waves to transmit networks, specifically radio frequency.
    • Wi-Fi has three medium components: base station network or Ethernet connection, access point or router, and accessing devices.

    Sensor Networks

    • A sensor network is a group of sensors monitoring data in different locations, sending data to a central location for storage, viewing, and analysis.
    • Applications of sensor networks include monitoring homes, cities, and earthquake detection.

    Vehicular Communication Systems

    • Vehicular communication systems are computer networks where vehicles and roadside units are communicating nodes, providing each other with information such as safety warnings and traffic information.

    Cybersecurity

    • Cybersecurity is the practice of protecting systems, networks, and programs from digital attacks, aimed at accessing, changing, or destroying sensitive information.
    • Cybersecurity safeguards internet-connected systems, including hardware, software, and data, from malicious attacks.
    • Common types of cyber attacks include malware, ransomware, viruses, and worms.

    Artificial Intelligence

    Computer Vision

    • Computer Vision is a branch of Artificial Intelligence that teaches machines to collect information from images.
    • Applications of Computer Vision include medical imaging, AR/VR, smartphones, and the Internet.

    Natural Language Processing (NLP)

    • NLP is a field that intersects computer science, artificial intelligence, and linguistics, focusing on the interaction between computers and human language.
    • NLP enables machines to understand, interpret, and generate human language, powering applications such as text translation, voice recognition, text summarization, and chatbots.
    • The NLP process involves two main stages: data preprocessing and algorithm development.

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    Description

    This quiz tests your knowledge of different types of computer networks, including LAN, WAN, and cloud networks, and their applications.

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