6.2 Compare Traditional Networks with Controller-Based Networking 200-301 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   How does the control plane operate differently in a controller-based network compared to a traditional network?

   • ABoth use a distributed control plane, but controller-based networks use more protocols.
   • BIn controller-based networks, the control plane is centralized; in traditional networks, it is distributed.
   • CIn traditional networks, the control plane is centralized; in controller-based networks, it is distributed.
   • DBoth use a centralized control plane, but traditional networks use a separate controller for each device.
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2. 2expert · hard

   A network team is automating the deployment of a new branch office. They want to use a controller-based approach to ensure that all devices are configured consistently and that changes are auditable. Which combination of features is most important to achieve this?

   • ASNMP monitoring with trap notifications
   • BPer-device CLI configuration with logging
   • CCentralized configuration repository with version control and API-driven provisioning
   • DDistributed routing protocols with route redistribution
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4. 3application · medium

   A network architect is designing a new network for a cloud provider that needs to support dynamic traffic engineering. The architect wants to adjust traffic paths in real-time based on network conditions. Which architecture is best suited for this requirement?

   • ATraditional networking with OSPF and equal-cost multipath (ECMP).
   • BTraditional networking with STP to prevent loops and ensure path stability.
   • CA hybrid approach using only CLI-based configuration on each router.
   • DController-based networking with a centralized control plane and programmable data plane.
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5. 4foundation · easy

   In a controller-based network, what is the primary source of forwarding information for a switch's data plane?

   • AFlow entries or forwarding rules pushed by the controller.
   • BThe switch's own OSPF and STP computations.
   • CMAC address learning from broadcast traffic.
   • DStatic routes manually configured on the switch.
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6. 5application · medium

   A network engineer is troubleshooting a loop that formed between two access switches. In the traditional network, Spanning Tree Protocol (STP) blocked a port to prevent the loop. The engineer wants to understand why the STP decision was made locally on the switch rather than by a central controller. Which statement best describes the control plane behavior in this traditional network?

   • ASTP decisions are made by the root bridge and then distributed to all switches using OSPF LSAs.
   • BA central controller computes the STP topology and pushes the blocked port state to each switch via NETCONF.
   • CEach switch runs its own STP instance and makes forwarding decisions independently using distributed control plane logic.
   • DThe switch forwards all BPDUs to a route reflector that decides the final port state.
   Reveal Solution Discussion Select an answer first