1.1.4 - Star Topology

Flashcards about Star Topology

What is a star topology?

Each endpoint node is connected to a central forwarding appliance, such as a switch or router.

What role does the central node play in a star topology?

The central node mediates communications between the endpoints.

What are the advantages of using a star topology?

Easy to reconfigure and troubleshoot because all data goes through a central point, which can be used to monitor and manage the network. Faults are automatically isolated.

In a star topology, what happens when a node transmits a signal?

The signal is sent over the network media to the concentrator.

How does the concentrator forward signals to other nodes?

By repeating the signal to all nodes, working as logical bus topology (implemented as an Ethernet hub) or selectively switches communication paths to establish point-to-point links.

What is a key disadvantage of a star topology?

The concentrator is a single point of failure.

Where is hub-and-spoke topology commonly applied?

The hub-and-spoke topology is more commonly applied to wide area networks (WANs) with remote sites.