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200-150 · Question #76
200-150 Question #76: Real Exam Question with Answer & Explanation
The correct answer is C: Star. Star and extended star are the dominant topologies in modern switched networks, forming the basis of both simple workgroup designs and scalable hierarchical enterprise architectures.
Question
Which two network topologies are the most popular in switching? (Choose two.)
Options
- ABus
- BToken passing bus
- CStar
- DExtended star
- ERing
Explanation
Star and extended star are the dominant topologies in modern switched networks, forming the basis of both simple workgroup designs and scalable hierarchical enterprise architectures.
Common mistakes.
- A. Bus topology uses a single shared medium where all devices contend for the same channel; it is a legacy design not used in modern switched LAN environments.
- B. Token passing bus is an obsolete deterministic media access technology associated with ARCnet; it has no relevance to contemporary Ethernet switching.
- E. Ring topology, used in legacy Token Ring and FDDI networks, has been replaced by Ethernet switching and is not considered a popular modern LAN switching topology.
Concept tested. Common network topologies used in switched LAN environments
Reference. https://www.cisco.com/c/en/us/td/docs/internetworking/design/guide/nd2461.html
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