SDN Controller JN0-214 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   An SDN controller is managing a network where traffic patterns change frequently. The controller needs to recalculate optimal paths and update forwarding rules dynamically. Which two functions are working together to achieve this?

   • APath computation and flow management
   • BFlow management and topology discovery
   • CPolicy enforcement and path computation
   • DTopology discovery and policy enforcement
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   Which interface of an SDN controller would a network application use to request a new path for a video stream?

   • ANorthbound interface
   • BEast-west interface
   • CSouthbound interface
   • DManagement interface
   Reveal Solution Discussion Select an answer first
4. 8expert · hard

   A cloud provider is deploying an SDN controller to manage a network that spans multiple availability zones. The controller must be resilient to a zone failure. Which deployment strategy best meets this requirement?

   • ADeploy a single controller in one availability zone
   • BDeploy controller instances in multiple availability zones with active-active clustering
   • CDeploy active-standby controllers in the same availability zone
   • DDeploy controllers in a single rack with redundant power
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A network administrator is troubleshooting a connectivity issue in an SDN environment. The controller is up, but traffic is not being forwarded as expected. Which step should the administrator take first?

   • AVerify that the controller has the correct topology information
   • BIncrease the controller's logging level
   • CDisable the northbound API
   • DReboot the switches
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6. 10application · medium

   A network engineer is explaining SDN to a colleague. The colleague asks, 'What is the main advantage of having a centralized SDN controller?' Which answer is most accurate?

   • AIt increases the speed of the data plane
   • BIt eliminates the need for network security
   • CIt reduces the number of switches required
   • DIt provides a global view of the network and enables programmatic control
   Reveal Solution Discussion Select an answer first