Network Redundancy Quiz
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Questions and Answers

What are some of the protocols that can be used to achieve a redundant network with ring topology?

  • PRP and MRP
  • HSR and V-DOMs
  • MRP and SD-WAN
  • PRP and HSR (correct)

    • In what scenario can a ring topology reduce the cost of wiring?

  • In data centers with high-speed networking requirements
  • In small office networks with limited wiring needs
  • In residential networking setups
  • In wind turbine monitoring and management requiring long wiring distance (correct)

    • How can redundancy for entry points and nodes where redundancy is not possible be implemented?

  • Configuring multiple ISPs
  • Implementing V-DOMs
  • Using a device in an HA cluster (correct)
  • Utilizing MRP protocols

    • What does SD-WAN help manage and route traffic through?

    <p>Multiple ISPs</p> Signup and view all the answers

    What does using V-DOMs do to a FortiGate device?

    <p>Splits it into multiple logical devices</p> Signup and view all the answers

    What is the maximum number of V-DOMs supported by default in FortiGate?

    <p>10</p> Signup and view all the answers

    What is the purpose of using more than one ISP and SD-WAN?

    <p>To provide internet connections and manage traffic</p> Signup and view all the answers

    What can be used to provide redundancy when the primary unit fails in an active-passive HA cluster?

    <p>Configuring devices with an active-passive HA cluster</p> Signup and view all the answers

    What is the primary function of MRP in a star topology?

    <p>Introduce media redundancy</p> Signup and view all the answers

    What is the purpose of using a ring topology in scenarios where cable cost is a concern?

    <p>To reduce the cost of wiring</p> Signup and view all the answers

    What does an HA cluster provide when it comes to system redundancy?

    <p>Redundancy when the primary unit fails</p> Signup and view all the answers

    What is the main benefit of using V-DOMs in a network security setup?

    <p>Divides one security domain into multiple security domains</p> Signup and view all the answers

    What does redundancy in an O.T network refer to?

    <p>Availability of backup components or links</p> Signup and view all the answers

    Which of the following is NOT a type of redundancy component?

    <p>Data redundancy</p> Signup and view all the answers

    What is one purpose of using redundant links and devices in an O.T network?

    <p>Traffic and resource load balancing</p> Signup and view all the answers

    Which protocol can be used for star topology in creating a backup path?

    <p>Parallel Redundancy Protocol (PRP)</p> Signup and view all the answers

    What is the primary function of High-Availability Seamless Redundancy (HSR) in a ring topology?

    <p>Creating a backup path</p> Signup and view all the answers

    How many types of redundancy components are mentioned in the text?

    <p>5</p> Signup and view all the answers

    What is the purpose of implementing redundancy for fault tolerance?

    <p>To have backup components ready for failover</p> Signup and view all the answers

    Which redundancy component involves creating a backup path that can be used when part of the network fails?

    <p>Media redundancy</p> Signup and view all the answers

    In what scenarios can redundant network structure be used?

    <p>Load balancing, Fault tolerance</p> Signup and view all the answers

    What is the purpose of using redundant links and devices for traffic and resource load balancing?

    <p>Sharing resources and bandwidth</p> Signup and view all the answers

    What does Media Redundancy Protocol (MRP) and High-Availability Seamless Redundancy (HSR) specifically cater to in terms of network topology?

    <p>Ring topology</p> Signup and view all the answers

    What does creating a backup path in media redundancy involve?

    <p>Creating an alternative route when part of the network fails</p> Signup and view all the answers

    Study Notes

    Redundant Network Protocols

    • Ring Topology:
      • Protocols:
        • Media Redundancy Protocol (MRP): Provides redundancy in a star topology.
        • High-Availability Seamless Redundancy (HSR): Offers redundancy in ring topology, automatically reroutes traffic if a link fails.
    • Redundancy for Entry Points and Nodes:
      • SD-WAN (Software-Defined Wide Area Network): Provides redundancy in entry points and nodes where redundancy is not possible.
      • V-DOMs (Virtual Domains): Allow a FortiGate device to act as multiple virtual firewalls on a single device, providing redundancy and isolation.
      • Multi-ISP (Internet Service Provider): Improves network performance and reliability by combining multiple Internet connections.

    Redundancy Implementations

    • Active-Passive HA Cluster: Uses a standby unit as a backup for the primary unit, providing redundancy in case of failure.
    • Redundant Links and Devices: Creates backup paths for data transfer, ensuring network availability in case of failures.
    • MRP and HSR: Both protocols are specifically designed for ring topologies, providing redundancy for network links and devices in case of failure.

    Benefits of Redundancy

    • Fault Tolerance: Ensures network availability and minimizes downtime in case of failures.
    • Increased Network Reliability: Improves network stability and reduces outages.
    • Traffic and Resource Load Balancing: Distributes traffic and resources over multiple links and devices, enhancing efficiency and performance.
    • Reduced Downtime: Minimizes service disruptions due to link or device failure.
    • Cost Reduction for Cable Wiring: Ring topologies allow for cost-effective wiring through minimized connections.

    Key Facts

    • Maximum FortiGate V-DOMs: FortiGate supports a maximum of 256 V-DOMs by default.
    • Redundancy Objectives: Redundancy in industrial OT networks focuses on critical equipment and applications for reliable operation.
    • Redundancy Component Types: There are multiple types of redundancy components, including protocols like MRP and HSR, as well as redundant links and devices.
    • Backup Path Creation: Backup paths in media redundancy involve adding redundant links and devices, enabling data flow through alternate routes in case of failure.

    Scenarios for Redundant Network Structures

    • Network Reliability: Implement redundancy to achieve a fault-tolerant and reliable network for mission-critical operations.
    • High Availability: Ensure continuous network availability by implementing backup systems and mechanisms to handle potential failures.
    • Load Balancing: Distribute workload efficiently by using redundant devices, ensuring smooth network performance even under high traffic.
    • Cost Optimization: Create network topologies that minimize wiring costs, particularly in star and ring configurations.

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    Description

    Test your knowledge on network redundancy with this quiz. Explore the concepts of load balancing, fault tolerance, and redundant components such as power, media, and network nodes. Assess your understanding of how redundant network structures can enhance availability and reliability in industrial settings.

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