In which topology is the link between nodes unidirectional, so data travels one way only?
AStar topology
BRing topology
CMesh topology
DBus topology
Answer & Solution
Correct answer: B. Ring topology
1. Common network topologies are mesh, ring, bus, star and tree.
2. In a ring, each node is joined to exactly two neighbours, one on either side.
3. The link in a ring topology is unidirectional.
4. Data therefore moves in one direction only, clockwise or counterclockwise.
5. In a bus, data passes along the length of the bus in both directions, and mesh and star both allow two-way links.
_Source: NCERT Computer Science Class 12, Ch 10 'Computer Networks', S10.5.2 Ring Topology_
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