Introduction to Networks - Lesson 1
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Questions and Answers

Which network topology is Token Ring commonly associated with?

  • Star
  • Bus
  • Mesh
  • Ring (correct)

What is the primary characteristic that differentiates Local Area Networks (LANs) from Wide Area Networks (WANs)?

  • The geographical area covered (correct)
  • The number of available services.
  • The type of cabling used
  • The number of users connected.

Who typically manages a Local Area Network (LAN)?

  • An individual or IT department (correct)
  • A government agency
  • A consortium of multiple organizations
  • A telecommunications service provider

What best describes the bandwidth provided by LANs to internal devices?

<p>High-speed (A)</p> Signup and view all the answers

Which of the following is NOT a typical information service transmitted over business networks?

<p>Online gaming (B)</p> Signup and view all the answers

Which entity generally owns and manages Wide Area Networks (WANs)?

<p>A telecommunications service provider (C)</p> Signup and view all the answers

What is one key benefit of using networks for employee training?

<p>Reduced travel expenses and time, while ensuring adequate training (B)</p> Signup and view all the answers

What is a significant difference in the link speed between LANs and WANs?

<p>LANs provide high speed links, while WANs usually have slower-speed links. (C)</p> Signup and view all the answers

What is the primary function of networks in the context regarding online games?

<p>To enable participation in worldwide online competitions (A)</p> Signup and view all the answers

What is the primary purpose of a WAN?

<p>To interconnect multiple LANs over a wide geographical areas (C)</p> Signup and view all the answers

What is a characteristic of a Small Home Network (SHN)?

<p>Connects a few devices to each other and the internet (A)</p> Signup and view all the answers

Which of the following best describes the area of responsibility for a LAN?

<p>A single organization or individual is typically responsible for its upkeep and functionality. (B)</p> Signup and view all the answers

Which type of network enables a home office to connect to a corporate network?

<p>Small Office/Home Office (SOHO) (C)</p> Signup and view all the answers

Which type of network is typically used by large corporations with multiple locations?

<p>Medium to Large Network (MLN) (C)</p> Signup and view all the answers

What is considered as a 'network of networks' that connects millions of computers worldwide?

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

What is a key difference in scale between a Small Home Network (SHN) and Medium to Large Network (MLN)?

<p>SHN connects a few computers, while MLN connects thousands (D)</p> Signup and view all the answers

What is the primary function of a network, as defined in the provided material?

<p>To connect things together for a specific purpose. (A)</p> Signup and view all the answers

According to the material, besides computer networks, what other types of networks are commonly recognized?

<p>Telephone, television, and people networks. (B)</p> Signup and view all the answers

What fundamental human need does communication over networks parallel in importance, according to the text?

<p>The need to sustain life. (A)</p> Signup and view all the answers

How have data networks primarily impacted communication, as suggested by the material?

<p>By establishing a new platform for modern communications. (B)</p> Signup and view all the answers

What is the primary factor that determines the type of internet connection a network requires?

<p>The bandwidth requirements of the network being connected. (B)</p> Signup and view all the answers

Which of the following best describes Asymmetrical DSL (ADSL)?

<p>Download speed is faster than upload speed. (A)</p> Signup and view all the answers

Which of the following activities would have been most difficult to accomplish 20 years ago, based on the text?

<p>Engaging in online gaming with others. (B)</p> Signup and view all the answers

What does the material suggest is the primary benefit of the expansion and repurposing of data networks?

<p>Enhanced quality of life for people globally. (C)</p> Signup and view all the answers

For businesses, which is generally NOT required from their internet connection?

<p>Basic web browsing for light use. (C)</p> Signup and view all the answers

What is a significant advantage of using satellite internet access?

<p>It is available in areas with limited or no other internet connectivity. (D)</p> Signup and view all the answers

Which of these describes how networks are categorized?

<p>They are categorized by their purpose and how they connect. (B)</p> Signup and view all the answers

What is considered one of the most important aspects of a modern communication platform, according to the text?

<p>Its capacity to adapt to changing conditions. (A)</p> Signup and view all the answers

Which of the following connection types is LEAST likely to be used by a typical home user?

<p>Business DSL. (B)</p> Signup and view all the answers

What is a common limiting factor for cellular internet access?

<p>The capabilities of the cell phone and cell tower. (B)</p> Signup and view all the answers

What is MOST likely to cause a home user to choose satellite internet over other options?

<p>Having no cellular and broadband options in the area. (D)</p> Signup and view all the answers

Which of the following are characteristics of business internet connections, based on the content provided?

<p>Often provided by service providers for fast interconnections. (A)</p> Signup and view all the answers

What is the primary function of a network topology diagram?

<p>To serve as a visual representation of how a network is connected. (B)</p> Signup and view all the answers

Which type of topology focuses on the actual geometric layout of workstations, including physical locations of devices, ports, and cables?

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

What does the logical (or signal) topology primarily define within a network?

<p>The nature of signal paths and the IP addressing scheme. (B)</p> Signup and view all the answers

What is the main function of a Network Interface Card (NIC)?

<p>To provide a physical connection to the network for a host device. (C)</p> Signup and view all the answers

What is a 'physical port' typically used for in a network?

<p>To connect a workstation or device to a network. (A)</p> Signup and view all the answers

What is the characteristic of a bus topology?

<p>Every workstation connects to a single main cable. (A)</p> Signup and view all the answers

What is the primary difference between an interface and physical port in the context of inter networking devices like a router?

<p>Interfaces connect to individual networks, while physical ports connect to end devices. (A)</p> Signup and view all the answers

In a ring topology, how are workstations connected to the network?

<p>They are connected in a closed loop configuration. (B)</p> Signup and view all the answers

What is a key characteristic of Symmetric Digital Subscriber Line (SDSL) service?

<p>It provides the same upload and download speeds. (C)</p> Signup and view all the answers

What is the primary limitation of satellite internet service?

<p>It needs a clear line of sight to the satellite, which can be affected by obstructions. (C)</p> Signup and view all the answers

What is a distinguishing feature of Asymmetric Digital Subscriber Line (ADSL) service?

<p>It offers varying downstream and upstream bandwidth rates. (A)</p> Signup and view all the answers

Which internet connection type requires a clear, unobstructed path to function correctly?

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

What does the term 'Internet' mean in the context of networking?

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

Which of the following best describes a symmetrical internet connection?

<p>Upload and download speeds are the same. (B)</p> Signup and view all the answers

What is the maximum distance at which ADSL transmissions typically function?

<p>18,000 feet (D)</p> Signup and view all the answers

Why are topology diagrams mandatory in networking?

<p>They are mandatory for anyone working with a network for visualization (C)</p> Signup and view all the answers

Flashcards

What is a network?

A system that connects things together for a specific purpose. It can be used to connect people, devices, or even ideas.

How are networks used in daily life?

Networks are used in many aspects of daily life, including communication, information sharing, and resource access.

How do networks provide resources?

Networks allow resources like files, software, and hardware to be accessed by multiple users on a shared system.

What is network topology?

A network topology is the arrangement of the network components. Common topologies include bus, star, and ring.

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What are network devices?

Network devices are used to connect and manage the network infrastructure. These include routers, switches, and hubs.

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What is the impact of the internet on society?

The internet has revolutionized communication and information access, impacting many aspects of modern life.

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How have networks evolved?

Networks have evolved from simple connections to sophisticated systems that enhance communication and information exchange.

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How did the internet change communication?

The internet transformed communication from traditional methods to fast, global communication.

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Network Topology Diagram

A visual representation of how devices are connected in a network, showing the layout and connections.

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Physical Topology

The actual physical arrangement of computers, cables, and networking devices in a network.

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Logical Topology

The way data flows through a network, regardless of the physical layout.

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Physical Port

A physical connection point on a networking device, such as a router or switch, where a cable is plugged in.

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Interface

A specialized port on a networking device that connects to a network. Routers often have multiple interfaces for connecting different networks.

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Bus Topology

Connects every workstation to a single cable, where data travels in both directions.

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Ring Topology

Connects every workstation in a closed loop, where data travels in one direction only.

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Network Interface Card (NIC)

A card inside a computer that provides the physical connection to the network.

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Small Home Network (SHN)

A network that connects a small number of computers, usually within a home, to each other and the internet.

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Small Office/Home Office (SOHO)

A network that connects computers in a home office or remote office, allowing them to access a corporate network or shared resources.

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Medium to Large Networks (MLN)

Networks used by corporations and schools, encompassing multiple locations and connecting hundreds or thousands of computers.

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World Wide Network (WWN)

A network of networks that connects hundreds of millions of computers worldwide, enabling global communication and resource sharing.

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Employee Training over Networks

The use of business networks to efficiently train employees, reducing travel costs and time while ensuring adequate skills development.

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Networking for Entertainment

The ability of networks to facilitate new forms of entertainment, such as online games, where players compete globally.

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Different Network Sizes

Networks come in various sizes, ranging from small home networks to vast global networks, accommodating diverse needs and resource sharing.

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Resource Provision in Networks

Networks are designed to provide resources to end users, enabling efficient access to data, applications, and communication.

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What is a Local Area Network (LAN)?

A network infrastructure connecting devices within a small geographical area, like a home, office, or school, typically managed by a single organization.

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What is a Wide Area Network (WAN)?

A network infrastructure connecting LANs over larger distances, like cities or countries, usually managed by multiple service providers.

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What are the key features of LANs?

A network that provides high-speed connectivity to devices within a limited area.

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What are key features of WANs?

WANs connect LANs across large distances, typically with slower speeds compared to LANs.

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What is a star topology?

A network topology where each device is connected directly to a central hub.

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What is a bus topology?

A network topology where all devices share a single communication channel.

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What is a ring topology?

A network topology where devices are connected in a closed loop.

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What is Token Ring?

A logical ring topology protocol developed by IBM, where data packets circulate around a ring.

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Fiber-optic Ethernet

A type of internet connection that delivers the fastest speeds but might not be available everywhere.

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Digital Subscriber Lines (DSL)

A type of internet connection available in various formats for businesses. SDSL provides equal upload and download speeds, while ADSL offers faster download than upload.

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Satellite Internet

An internet connection option provided by satellites, useful when wired solutions are unavailable. Satellite dishes require a clear line of sight.

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Network Topology

The physical layout of a network, showing how devices are interconnected. It can be represented as a diagram.

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Star Topology

A network topology that connects all devices to a central hub, with data flowing through the hub to reach other devices.

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The Internet

The largest network in the world, consisting of interconnected networks, providing global communication and information access.

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What is ADSL?

A high-bandwidth connection to the Internet, typically used by small offices and home offices. It uses existing telephone lines and offers faster download speeds than upload speeds.

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What is an ISP?

A network that connects users and organizations to the Internet, often using broadband cable, DSL, or wireless connections. It's a common access point for home users and small businesses.

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What is Cellular Internet?

A connection that uses cellular networks to access the Internet. It offers mobility but its speed can be limited by the phone and cell tower.

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What is Satellite Internet?

Internet access through a satellite network, especially useful in remote areas with limited connectivity. It offers wide coverage but sometimes has higher latency.

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What is DSL?

A type of Internet connection that uses existing telephone lines, providing a constant connection and generally faster speeds than dial-up.

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What are Business-Class Interconnections?

Connections designed for businesses providing fast speeds for services like IP phones, video conferencing, and data storage. They are typically provided by service providers with dedicated lines.

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What is Business DSL?

A type of business internet connection that uses existing telephone lines and offers fast download and upload speeds. It is typically used by businesses requiring high bandwidth and reliable connectivity.

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What is Metro Ethernet?

A high-speed internet connection typically used by businesses and providing dedicated, fiber-optic lines with high bandwidth, low latency, and high availability.

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Study Notes

Lesson 1: Introduction to Networks

  • A network connects things for a specific purpose, encompassing computers, telephones, and even people.
  • Networks are rapidly transforming the world into a global society, enabling communication and resource sharing globally.
  • Networks require diverse technologies and adaptable procedures to function effectively.

Lesson Objectives

  • Understand everyday network use.
  • Explain how networks provide resources.
  • Describe network topologies and devices.

Networks in Everyday Life

  • Networks are a fundamental part of daily life, essential for human interaction and survival, almost as important as basic necessities like air, water, food, and shelter.
  • Methods of communication are constantly evolving due to robust data networks. These networks have significantly impacted communication and are the new platform for modern communication.

Technology Then and Now

  • The internet has rapidly expanded and repurposed communication, providing instant access to information and resources like online gaming, social media, and more.
  • Resources are now readily available online through the internet, including posting photos and videos, accessing and submitting schoolwork, interacting with others via email and instant messaging, watching videos, playing online games, checking current weather conditions and traffic, and paying bills.
  • Mobile computing, using personal devices, has emerged as a key component, allowing access to data and systems. Bring Your Own Device (BYOD) is a common term for this.

Internet of Things (IoT) and Internet of Everything (IoE)

  • Innovations have led to the development of the IoT, where once passive devices can now send data, like smart watches, televisions, traffic lights, and other IP-enabled devices or objects.
  • The IoE is the anticipated future network environment that combines people, processes, data, and things, to create more relevant and valuable networked connections. This creates richer experiences and opportunities for individuals, businesses, and countries.

Changing the Way We Learn

  • Educational institutions are continually improving communication, collaboration, and engagement for knowledge dissemination.
  • Traditional learning methods (textbooks and instructors) have limitations.
  • Networks can provide rich learning experiences, including interactive activities, assessments, and feedback, minimizing geographic barriers.
  • Online distance learning and readily available, high-quality instruction are major advantages.

Changing the Way We Communicate

  • Networks eliminate time and geographic boundaries, enabling instant communication worldwide.
  • Communication forms include instant messaging, social media, collaboration tools, wikis, and podcasts.
  • Peer-to-peer file sharing facilitates direct file transfer between users.

Changing the Way We Work

  • Networks provide efficient business access to resources regardless of location, making remote work possible.
  • Businesses historically used networks for financial, customer, and employee information.
  • Networks facilitate many types of communication including video-conferencing, messaging, and telephony.

Networks of Many Sizes

  • Networks range from small home networks connecting a few computers to vast worldwide networks connecting millions.
  • Classifications of networks include Small Home Networks (SHN), Small Office/Home Office (SOHO), Medium to Large Networks (MLN), and Worldwide Networks (WWN).

Network Architecture

  • A host is a device connected to a network and can act as a client (requesting data), server (providing data), or peer (both).
  • Various architectures exist, including peer-to-peer (where every host acts as both client and server), client-server (where designated hosts provide services), and mainframe/terminal (an older architecture).

Network Topology

  • Topology diagrams show how devices are connected in a network, distinguishing between 'physical' and 'logical' layouts.
  • Common topologies include bus, ring, star, hybrid, and mesh.

Network Types by Location

  • Networks are classified by the geographical area they cover, most commonly Local Area Networks (LAN) and Wide Area Networks (WAN).
  • LANs cover a limited area like a home, school, or office.
  • WANs span larger distances such as cities, countries, etc.

Internet Connections

  • Various technologies connect people and organizations to the internet, ranging from dial-up telephone services to broadband cable, DSL, and satellite connections.
  • Business networks commonly have dedicated bandwidth requirements to support intensive usage.

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Related Documents

NET102 Lesson 1 - Introduction to Networks PDF

Description

Explore the foundational concepts of networks in this introductory lesson. Understand how networks connect various entities and the impact they have on communication and resource sharing in our daily lives. Learn about different network topologies and the technology evolving to support these connections.

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