Cisco Reliable Networks Overview
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Questions and Answers

What characteristic of network architecture ensures that a failure affects the fewest devices possible?

  • Security
  • Quality of Service
  • Scalability
  • Fault Tolerance (correct)

    • Which mechanism is primarily used to ensure the reliable delivery of content in a network?

  • Quality of Service (QoS) (correct)
  • Load Balancing
  • Scalability Standards
  • Network Redundancy

    • In a fault tolerant network, what is primarily implemented to provide redundancy?

  • Circuit Switching
  • Firewall Protection
  • Dedicated Circuits
  • Packet Switching (correct)

    • Which characteristic allows a network to easily support additional users and applications without degrading performance?

    <p>Scalability</p> Signup and view all the answers

    What typically causes interruptions in voice and video services during transmission?

    <p>Inadequate Bandwidth</p> Signup and view all the answers

    Which of the following is NOT one of the basic characteristics that network architectures must address?

    <p>User Interface Design</p> Signup and view all the answers

    What allows each packet in a packet-switched network to potentially take different paths to the destination?

    <p>Dynamic Routing</p> Signup and view all the answers

    Implementing accepted standards and protocols primarily affects which characteristic of network architecture?

    <p>Scalability</p> Signup and view all the answers

    What is a primary function of intermediary network devices?

    <p>Regenerate and retransmit data signals</p> Signup and view all the answers

    Which of the following best describes the role of network media?

    <p>To allow messages to travel between source and destination</p> Signup and view all the answers

    What type of topology diagram illustrates the physical location of devices?

    <p>Physical topology diagram</p> Signup and view all the answers

    Which medium uses electrical impulses for communication?

    <p>Metal wires within cables</p> Signup and view all the answers

    Which statement is true regarding the terms 'port' and 'interface'?

    <p>They are used interchangeably in most contexts</p> Signup and view all the answers

    What does a logical topology diagram illustrate?

    <p>The addressing scheme and logical connections between devices</p> Signup and view all the answers

    Which of the following media types uses pulses of light?

    <p>Fiber-optic cables</p> Signup and view all the answers

    What is one of the capabilities of a router as an intermediary device?

    <p>Notify other devices of errors or failures</p> Signup and view all the answers

    What is the main characteristic of a Local Area Network (LAN)?

    <p>It interconnects end devices in a limited area.</p> Signup and view all the answers

    Which of the following best describes a Wide Area Network (WAN)?

    <p>Connects LANs over wide geographical areas.</p> Signup and view all the answers

    Which network type typically provides slower speed links?

    <p>Wide Area Network (WAN)</p> Signup and view all the answers

    What distinguishes the Internet from other types of networks?

    <p>It connects hundreds of millions of devices worldwide.</p> Signup and view all the answers

    Which type of network connects computers to a corporate network from home?

    <p>Small Office/Home Office Network</p> Signup and view all the answers

    What is a key feature of a Medium to Large Network?

    <p>It includes hundreds or thousands of interconnected computers.</p> Signup and view all the answers

    Which medium is NOT commonly used by WANs for interconnection?

    <p>Ethernet cables</p> Signup and view all the answers

    Which of the following statements is true regarding the administration of LANs and WANs?

    <p>LANs are administered by a single organization.</p> Signup and view all the answers

    What is the primary purpose of an intranet?

    <p>To provide a private network accessible only to authorized members.</p> Signup and view all the answers

    Which organization is responsible for coordinating internet protocols and standards?

    <p>IETF</p> Signup and view all the answers

    What type of internet connection is most commonly used by home users?

    <p>Broadband DSL</p> Signup and view all the answers

    What is a key characteristic of an extranet?

    <p>It offers limited access to external authorized users.</p> Signup and view all the answers

    Which internet access technology is described as 'always on' with high bandwidth?

    <p>Broadband cable</p> Signup and view all the answers

    What challenge do organizations face that influences their choice of internet connections?

    <p>Supporting IP phones and video conferencing.</p> Signup and view all the answers

    Which group is NOT one of the organizations established to maintain structure on the internet?

    <p>IRP</p> Signup and view all the answers

    Which service is typically NOT associated with business-class interconnections?

    <p>Broadband cable</p> Signup and view all the answers

    What is one of the main benefits of DSL as an internet connection?

    <p>High bandwidth</p> Signup and view all the answers

    Which internet connection type is primarily advantageous in rural areas lacking Internet Service Providers?

    <p>Satellite</p> Signup and view all the answers

    What purpose do leased lines serve in corporate business connections?

    <p>Connect distant offices with dedicated circuits</p> Signup and view all the answers

    How do converged networks differ from traditional separate networks?

    <p>They carry multiple services over one link</p> Signup and view all the answers

    Which of the following is a feature of Business DSL?

    <p>It includes Symmetric Digital Subscriber Lines</p> Signup and view all the answers

    What is a common characteristic of converged networks?

    <p>They deliver services using the same set of rules</p> Signup and view all the answers

    What limitation does dial-up internet present as a connection option?

    <p>Low bandwidth capability</p> Signup and view all the answers

    What does Ethernet technology do in the context of internet connections?

    <p>Extends LAN access technology into WAN</p> Signup and view all the answers

    Study Notes

    Reliable Networks Overview

    • Network architecture supports data transfer, emphasizing fault tolerance, scalability, Quality of Service (QoS), and security.

    Fault Tolerance

    • Fault-tolerant networks minimize failure impact by ensuring multiple paths for data transmission.
    • Implementing packet-switching allows data to be sent in packets, potentially taking different routes, unlike circuit-switched networks which use dedicated circuits.

    Scalability

    • Scalable networks can adapt quickly to increased users and applications without degrading service performance.
    • Standards and protocols followed by designers facilitate scalability.

    Quality of Service (QoS)

    • QoS ensures reliable delivery of bandwidth-sensitive content like voice and video, preventing interruptions.
    • A QoS policy enables routers to optimize data flow management, particularly during high-demand periods.

    Intermediary Network Devices

    • Intermediary devices connect end devices, including switches, routers, and firewalls.
    • Their functions include regenerating data signals, maintaining pathway information, and notifying about errors or communication issues.

    Network Media

    • Network communication occurs over various media types:
      • Metal wires: Use electrical impulses for signal transmission.
      • Fiber optic cables: Utilize light pulses for data transfer.
      • Wireless: Employ electromagnetic wave modulation for connectivity.

    Network Representations and Topologies

    • Topology diagrams represent network layouts symbolically, encompassing Network Interface Cards (NICs), physical ports, and interfaces.
    • Physical topology diagrams show device placements, while logical topology diagrams outline device connections and addressing.

    Common Types of Networks

    • Networks vary in size and purpose:
      • Small Home Networks: Connect limited computers and the internet.
      • Small Office/Home Office (SOHO): Enables individual or remote office connectivity.
      • Medium to Large Networks: Interconnect numerous devices across multiple locations.
      • World Wide Networks: Encompasses extensive global interconnection, primarily represented by the internet.

    LANs and WANs

    • Local Area Network (LAN): Covers small geographical areas, connected by a single organization.
    • Wide Area Network (WAN): Spans large geographic distances, often connecting multiple LANs.

    Internet Structure

    • The internet is a vast network of interconnected LANs and WANs, employing multiple connection methods including copper wires, fiber optics, and wireless technologies.
    • Key organizations such as IETF, ICANN, and IAB maintain internet structure and governance.

    Intranets and Extranets

    • An intranet is a private network accessible only to authorized organization members.
    • Extranets allow secure access to specific external users for data collaboration.

    Internet Connections

    • Connection methods include broadband cable, DSL, and wireless for homes and small offices, as well as leased lines and Metro Ethernet for businesses.

    Business Internet Connections

    • Corporate connections often require higher bandwidth and dedicated services like leased lines and Ethernet WAN.
    • Business DSL offers varied formats, including Symmetric DSL for balanced upstream and downstream speeds.

    Converging Networks

    • Before convergence, separate networks existed for voice, data, and video, requiring distinct cabling and technologies.
    • Converged networks streamline communication by transmitting data, voice, and video over unified infrastructure using consistent standards.

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    Related Documents

    CCEE 454-Lecture 2.pdf

    Description

    This quiz covers the fundamental aspects of reliable network architecture as outlined by Cisco. Discover the key characteristics that essential technologies must address to support effective data movement across networks. Test your understanding of these critical concepts in networking.

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