What are two benefits of a star network topology? (Choose two.)

Question

Options

• ADisruption of the entire network is not required when adding new machines.
• BAny problem which leaves the network inoperable can be traced to the central hub.
• CThis network type requires less cable as compared to linear bus topology.
• DThe performance of one of the numerous nodes cannot reflect on the performance of other
• EThe performance of the entire network is directly dependent on the performance of the hub.

• A
  92% (24)
• C
  4% (1)
• E
  4% (1)

Explanation

A is correct because in a star topology, each device has its own dedicated connection to the central hub, so plugging in a new machine only requires connecting it to an available port - the rest of the network keeps running uninterrupted.

B is correct because the hub is the single convergence point for all traffic; if every node loses connectivity simultaneously, the root cause is almost certainly the hub itself, making diagnosis straightforward.

C is wrong - star topology actually uses more cable than a linear bus, since every device needs its own individual run back to the hub rather than sharing one backbone cable.

D is wrong - especially with older shared-medium hubs, heavy traffic from one node degrades bandwidth for all others; node isolation is a characteristic of switches, not inherent to the star topology as a whole.

E is wrong because it describes a liability of star topology (single point of failure), not a benefit - the question asks you to identify advantages.

Memory tip: Think "Star = hub is king." Adding devices is easy because you just tap into the king (A), and if the kingdom falls, blame the king first (B). But the king also being a bottleneck (E) is the curse, not the crown.

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