Podcast
Questions and Answers
What is a major disadvantage of a ring topology?
What is a major disadvantage of a ring topology?
- A network server or central node is necessary to control network connectivity.
- If any individual connection or workstation in the ring is broken, the entire network is affected. (correct)
- Data transfer speeds are limited to 10 Mbps.
- Data flows in multiple directions, causing packet collisions.
What is an advantage of a ring topology?
What is an advantage of a ring topology?
- All data must pass through a central node, reducing network traffic.
- Each workstation is connected to a central hub, improving network reliability.
- Data flows in one direction, reducing the chance of packet collisions. (correct)
- Network configuration changes are not affected by device movements.
How does a ring topology compare to a bus topology in terms of performance?
How does a ring topology compare to a bus topology in terms of performance?
- Bus topology always outperforms ring topology.
- Ring topology performs better with light network loads.
- Ring topology performs better with heavy network loads. (correct)
- Both topologies perform equally well in all scenarios.
What is a potential issue with adding new devices to a ring topology?
What is a potential issue with adding new devices to a ring topology?
What is a disadvantage of ring topology compared to star topology?
What is a disadvantage of ring topology compared to star topology?
Why is reliability a major concern in ring networks?
Why is reliability a major concern in ring networks?
What is a disadvantage of implementing a dual ring solution in a network?
What is a disadvantage of implementing a dual ring solution in a network?
What is an advantage of the ring topology?
What is an advantage of the ring topology?
How do star topologies perform in terms of link failure?
How do star topologies perform in terms of link failure?
What is a characteristic of a star topology?
What is a characteristic of a star topology?
What is the primary function of the central network device in a star topology?
What is the primary function of the central network device in a star topology?
What is the name of the protocol that is related to the ring topology?
What is the name of the protocol that is related to the ring topology?
What is a major drawback of a mesh topology?
What is a major drawback of a mesh topology?
What is a characteristic of ad-hoc networks?
What is a characteristic of ad-hoc networks?
Which of the following is not a listed network topology?
Which of the following is not a listed network topology?
What is an advantage of adding devices in a mesh topology?
What is an advantage of adding devices in a mesh topology?
What is the role of a mobile node in an ad-hoc network?
What is the role of a mobile node in an ad-hoc network?
What is a characteristic of wireless ad-hoc networks?
What is a characteristic of wireless ad-hoc networks?
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Study Notes
Network Topologies
- Network cards used in ring topology computers can connect using coaxial cables or RJ-45 network cables.
Ring Topology
- All data flows in one direction, reducing packet collisions.
- No network server or central node is needed to control network connectivity.
- Data transfer between workstations is fast.
- Additional workstations can be added without impacting network performance.
- It performs better than bus topology with heavy network loads.
Disadvantages of Ring Topology
- If one connection or workstation in the ring is broken, the entire network is affected.
- Data must pass through each workstation, making it slower than star topology.
- Hardware needed to connect each workstation is more expensive than Ethernet cards and hubs/switches.
- Adding or moving devices in the ring can break the network.
Reliability of Ring Networks
- A single broken link can impede communication between nodes.
- Dual ring solutions improve reliability through redundancy, but increase deployment and maintenance costs.
- Token Ring protocol (IEEE 802.5) is a standardization related to ring topology.
Star Topology
- Every node connects to a central network device (hub, switch, or computer).
- The central network device acts as a server, and peripheral devices act as clients.
- This topology is popular for home networks, where devices connect to a local router.
- Star topologies are robust against link failure, only affecting hosts using those links.
Advantages of Star Topology
- Adding additional devices does not disrupt data transmission between other devices.
Mesh Topology
- Disadvantages include high implementation costs, difficulty in building and maintaining, and potential for redundant connections.
Ad-Hoc Topology
- Wireless ad-hoc networks enable user mobility and wireless connectivity.
- Each node dynamically establishes a communication link with nearby devices.
- Nodes have a dual role as mobile hosts and mobile routers.
- Ad-hoc networks do not rely on infrastructure and communicate over dynamically formed paths.
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