Podcast
Questions and Answers
What is the purpose of physical topology in a network?
What is the purpose of physical topology in a network?
Which type of topology uses CSMA for media access control?
Which type of topology uses CSMA for media access control?
In Ring Topology, what is the mechanism used for data transmission?
In Ring Topology, what is the mechanism used for data transmission?
What advantage does Star Topology offer over other topologies?
What advantage does Star Topology offer over other topologies?
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Which type of topology is known for its reliability in maintaining communication between connected computers?
Which type of topology is known for its reliability in maintaining communication between connected computers?
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What is a disadvantage of Bus Topology?
What is a disadvantage of Bus Topology?
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Which topology type is categorized by fast communication between nodes?
Which topology type is categorized by fast communication between nodes?
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Study Notes
Network Topology
- Network topology defines the structure of the network, describing how all components are interconnected.
Physical Topology
- Refers to the geometric representation of all nodes in a network.
- There are six types of network topologies: Bus, Ring, Tree, Star, Mesh, and Hybrid.
Bus Topology
- Uses CSMA (media access control) to maintain data integrity and prevent data loss.
- Two alternative ways to handle simultaneous message sending:
- CSMA/CD (Collision Detection)
- CSMA/CA (Collision Avoidance)
- Advantages:
- Simple installation and management
- Requires less cable length
- Nodes can be added or removed easily
- Disadvantages:
- Failure of the backbone cable affects entire network
- Difficult to troubleshoot
Ring Topology
- Uses token passing for message transmission.
- Advantages:
- High-speed data transfer
- Uses a limited amount of cable
- Disadvantages:
- Failure of one node affects entire network
- Installing and managing is complex
Star Topology
- All nodes connect to a central device (hub or switch).
- Advantages:
- Easy to install and manage
- Failure of one node doesn't affect entire network
- Disadvantages:
- Failure of the central device affects entire network
- Adding new devices is difficult
Tree Topology
- Combines characteristics of bus and star topologies.
- Advantages:
- Relatively easy to install and manage
- Scalable and flexible
- Disadvantages:
- Failure of a branch affects entire network
- Difficult to troubleshoot
Mesh Topology
- Each node connects to every other node.
- Formula to calculate connections: n(n-1)/2 where n is the number of nodes.
- Divided into two categories:
- Partial Mesh: Some nodes connect to every other node.
- Full Mesh: Every node connects to every other node.
- Advantages:
- Reliable: Network remains functional even if one link breaks.
- Fast communication between nodes.
- Easier reconfiguration when adding new devices.
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Description
Learn about network topology, which defines how network components are interconnected. Explore the differences between physical and logical topology, as well as types such as Bus, Ring, Tree, Star, Mesh, and Hybrid Topology.
