Questions and Answers
What is a primary advantage of star topology?
What happens if the hub in a star topology fails?
How does mesh topology achieve secure data transfer?
What is a notable drawback of tree topology?
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Which topology requires a large number of connections as the network grows?
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What is the drawback of using a ring topology for message passing?
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In tree topology, how are nodes connected to the main backbone?
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What type of topology is most beneficial for fault detection and isolation?
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What is a primary disadvantage of bus topology?
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In ring topology, how is the message transmitted?
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Which characteristic is typical of point-to-point topology?
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What is an advantage of ring topology over bus topology?
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Which topology allows for single point failure that can disrupt the entire network?
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What type of topology minimizes cabling and is relatively easy to install?
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Which topology can complicate fault detection due to interlinked nodes?
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Which topology involves a central hub connecting nodes, making it less vulnerable to single point failures?
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What is the main feature of bus topology?
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In which topology are all devices connected in the form of a loop?
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Which of the following describes tree topology?
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Which topology allows every node to connect directly to every other node?
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What is a primary disadvantage of bus topology?
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Which component connects multiple LANs and can operate at different speeds?
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What distinguishes star topology from other topologies?
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In terms of data transmission, which topology allows for higher performance when adding more devices?
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Study Notes
Network Topologies
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Ring Topology: Nodes are interconnected in a circular arrangement, allowing messages to travel in one direction. Easy addition and deletion of devices but susceptible to single point failures, which can disrupt the entire network.
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Star Topology: All devices are connected to a central hub. Communication between devices occurs through the hub. Easier installation and fault isolation, but relies heavily on hub functionality; if the hub fails, the entire network goes down. Requires more cabling compared to other topologies.
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Mesh Topology: Each node connects directly to every other node, providing secure data transfer and eliminating traffic issues. Installation becomes complex as the number of nodes increases due to the vast number of connections needed.
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Tree Topology: A hybrid network combining star and bus topologies. The backbone cable serves as the tree stem while devices connect like branches. Damage to a segment does not affect the entire network, but disruption occurs if the backbone cable is damaged. More challenging to install and configure than simpler topologies.
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Bus Topology: Features a long backbone cable connecting all nodes through taps. Requires less cabling, simple to install and extend, but faces difficulties in fault detection and isolation due to shared line communication leading to collision risks.
Identification of Network Nodes
- MAC Address: Mandatory for nodes to uniquely identify each other for effective communication within a network.
Types of Networks
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LAN (Local Area Network): Private networks typically spanning up to 1 km, usually established within a single building or campus.
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MAN (Metropolitan Area Network): Connects multiple LANs, spanning areas up to 50 km within a city, potentially owned by a single entity or multiple organizations.
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WAN (Wide Area Network): Covers large geographical areas, typically up to 1000 km, facilitating long-distance communication and connecting various local and metropolitan area networks.
Networking Devices
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Repeater: Used to restore weakened signals for longer transmission distances.
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Hub: Central device that interconnects multiple cables; each port connects to a single cable segment.
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Bridge: Connects multiple LANs and can operate at varying speeds.
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Switch: Connects individual nodes directly within the network, improving communication efficiency.
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Router: Connects different networks, directing data from one network to another.
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Gateway: Allows communication between networks with differing protocols.
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Internet: A vast network of interconnected networks.
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Description
Test your knowledge on different networking topologies such as ring and star configurations. Understand how messages are sent between nodes and the advantages and disadvantages of each topology. Perfect for students studying network fundamentals.