200-901 Question 186
Single answerYou are reviewing a network topology diagram that includes a router, two switches, and three end devices. The router is connected to both switches, and each switch connects to one end device. One end device is directly connected to the router. Based on the diagram, which statement correctly describes the role of the router in this topology?
- A
The router is responsible for connecting devices within the same subnet.
- B
The router is responsible for interconnecting different subnets and facilitating communication between them.
- C
The router provides redundancy for the switches in the topology.
- D
The router ensures that all end devices can communicate using Layer 2 switching.
Show answer and explanation
Correct answer: B
Explanation
In the provided topology, the router's role is to interconnect different subnets and manage Layer 3 communication. Switches handle Layer 2 communication within a subnet, while routers facilitate communication between separate subnets by routing packets based on their IP addresses.
- A. Incorrect.
This is incorrect because routers do not connect devices within the same subnet. Switches handle Layer 2 communication within a subnet.
- B. Correct.
This is correct as routers are used to interconnect different subnets and facilitate communication between them at Layer 3.
- C. Incorrect.
This is incorrect because routers are not typically used for redundancy in this context. Redundancy would usually involve multiple devices or protocols like spanning tree for switches.
- D. Incorrect.
This is incorrect because Layer 2 switching is handled by switches, not routers.