Network topology star – UGC NET Question

In a star topology, each device on the LAN connects to a central hub or switch, so data travelling between two nodes always passes through this central point. This arrangement simplifies management and fault isolation and is therefore the standard design for many Ethernet-based ICT labs.

Option A:
This option accurately describes a star network, where each node has its own cable to a central device. If one link fails only that node is affected, while the hub or switch continues to serve the remaining nodes.

Option B:
This statement describes a ring topology, in which nodes form a closed loop and data circulates around the ring in one direction (or two). That pattern is different from the hub-and-spoke structure of a star.

Option C:
Having every node directly connected to all others with separate cables corresponds to a full mesh topology, which offers high redundancy but is usually too expensive and complex for typical ICT labs.

Option D:
A network where nodes are connected randomly with no clear pattern or central point does not represent a standard star topology and would be difficult to design, manage and secure.