Exam N10-006 topic 1 question 18 discussion

Actual exam question from CompTIA's N10-006

Question #: 18
Topic #: 1

A network engineer needs to set up a topology that will not fail if there is an outage on a single piece of the topology. However, the computers need to wait to talk on the network to avoid congestions.
Which of the following topologies would the engineer implement?

A. Star
B. Bus
C. Ring
D. Mesh

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Suggested Answer: C 🗳️
Token Ring networks are quite rare today. Token Ring networks use the ring topology. Despite being called a Ring topology, the ring is logical and the physical network structure often forms a star topology with all computers on the network connecting to a central multistation access unit (MAU). The MAU implements the logical ring by transmitting signals to each node in turn and waiting for the node to send them back before it transmits to the next node. Therefore, although the cables are physically connected in a star, the data path takes the form of a ring. If any computer or network cable fails in a token ring network, the remainder of the network remains functional. The MAU has the intelligence to isolate the failed segment.
To ensure that the computers need to wait to talk on the network to avoid congestions, a Token Ring network uses a token. The token continually passes around the network until a computer needs to send data. The computer then takes the token and transmits the data before releasing the token. Only a computer in possession of the token can transmit data onto the network.

by karokeksa at Feb. 4, 2024, 3:09 a.m.

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karokeksa

1 year, 4 months ago

Correct answer is A: STAR n a star topology, all computers are connected to a central hub or switch. If one link or computer fails, it does not affect the rest of the network, making it a fault-tolerant topology. Additionally, the central hub or switch can manage the communication and avoid collisions, preventing congestion.

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