6.2 Compare Traditional Networks with Controller-Based Networking 200-301 Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   In a controller-based network, what happens when a link fails?

   • AEach switch independently runs STP to block redundant paths.
   • BThe controller is notified and recalculates forwarding rules for affected devices.
   • CThe switch that detects the failure broadcasts a new route to all other switches.
   • DThe network relies on static routes that are manually updated.
   Reveal Solution Discussion Select an answer first
2. 22foundation · easy

   Which characteristic is typical of a traditional network?

   • ADevices are configured individually using a CLI or SNMP.
   • BNetwork-wide policies are defined once and pushed to all devices via APIs.
   • CThe control plane is separated from the data plane on every device.
   • DAll devices receive their configuration from a central controller automatically.
   Reveal Solution Discussion Select an answer first
4. 23application · medium

   A small business has a traditional network with a few switches and routers. The owner wants to understand why adding a new VLAN requires configuring each switch manually. Which characteristic of traditional networks explains this?

   • AVLAN information is automatically propagated using OSPF.
   • BA central controller must be updated before any VLAN change can take effect.
   • CThe switches use STP to automatically create VLANs.
   • DEach device has its own control plane and must be configured individually.
   Reveal Solution Discussion Select an answer first
5. 24foundation · easy

   Which statement best compares the scalability of traditional versus controller-based networks?

   • ABoth scale equally because the control plane is distributed in both.
   • BController-based networks can scale more easily because configuration is centralized and automated.
   • CTraditional networks scale more easily because each device is independent.
   • DController-based networks are less scalable because the controller becomes a bottleneck.
   Reveal Solution Discussion Select an answer first
6. 25application · medium

   A network engineer is comparing failure handling in traditional and controller-based networks. In a traditional network, if a router fails, how do other routers typically react?

   • AThey rely on distributed routing protocols to converge and find alternate paths
   • BThey send the traffic to a centralized backup router that takes over
   • CThey stop forwarding traffic until the failed router is manually replaced
   • DThey wait for the controller to recompute the network topology and update their forwarding tables
   Reveal Solution Discussion Select an answer first