e,"text":"","explanation":"Used to lock a datastore, not retrieve data.","masteryContext":""}],"correctOptionKey":"C","correctOptions":["C"],"correctAnswerText":"","isMultiSelect":false,"mainExplanation":"The NETCONF operation retrieves both configuration and operational state data from a device, making it the correct choice for this requirement. Unlike , which only returns configuration data, accesses the running datastore and includes state data such as interface statistics, routing tables, and system status. This aligns with RFC 6241, where is defined as the operation to retrieve combined config and state information.","examTrap":"Cisco often tests the distinction between and , trapping candidates who assume retrieves all data because it is the most commonly used operation for reading configurations.","examTip":null,"technicalDeepDive":"Under the hood, queries the running datastore but also triggers the device to collect real-time operational state from system processes, such as interface up/down status or CPU utilization, which are not stored in the configuration datastore. In YANG, this corresponds to nodes defined with 'config false' statements, which are only accessible via or (in RESTCONF). A real-world scenario is monitoring interface errors: would return nothing for error counters, while returns the live values.","keyConcepts":[],"faqs":[],"eliminationLogic":null,"exhibitText":null,"exhibitUrl":null,"hasExhibit":false,"isExhibitQuestion":false,"questionPairs":null,"hasMatchingPairs":false,"isMatchingQuestion":false,"relatedQuestions":[],"breadcrumbItems":null,"nextQuestionUrl":null,"previousQuestionUrl":null,"domainPracticeUrl":null,"certificationUrl":null,"domainUrl":null,"hasAnswerOptions":true,"updatedAt":"2026-06-11T13:55:45.085+00:00","questionType":"multiple_choice"},{"id":"80f12d4e-6e5b-4fde-8e34-f78bbfb1ba3e","slug":"a-large-sp-plans-to-deploy-sr-te-tunnels-across-the-backbone-zqv4i","certificationSlug":"cisco-ccnp-service-provider","examCode":"350-501","examName":"Cisco SPCOR / CCNP Service Provider Core 350-501","questionText":"A large SP plans to deploy SR-TE tunnels across the backbone using an SDN controller for path computation. To ensure fast convergence and scalability, which automation approach should be used for tunnel creation?","difficulty":"hard","domain":"Automation and Assurance","domainSlug":"sp-automation-assurance","topic":"","questionNumber":0,"totalQuestions":0,"options":[{"key":"A","isCorrect":false,"text":"Static configuration on each router","explanation":"Static configuration is manual and lacks dynamic adaptation, leading to slower convergence.","masteryContext":""},{"key":"B","isCorrect":true,"text":"PCEP with stateful delegation to controller","explanation":"Stateful PCEP enables the controller to optimize and update SR-TE paths in real time, improving convergence.","masteryContext":""},{"key":"C","isCorrect":false,"text":"RSVP-TE tunnels","explanation":"RSVP-TE is not based on Segment Routing and is less scalable for large networks.","masteryContext":""},{"key":"D","isCorrect":false,"text":"NetFlow-based path selection","explanation":"NetFlow is for traffic analysis, not for tunnel creation or path computation.","masteryContext":""},{"key":"E","isCorrect":false,"text":"SNMP traps","explanation":"SNMP traps are for event notifications, not for configuring tunnels.","masteryContext":""}],"correctOptionKey":"B","correctOptions":["B"],"correctAnswerText":"","isMultiSelect":false,"mainExplanation":"B is correct because PCEP with stateful delegation allows the SDN controller to compute and instantiate SR-TE tunnels dynamically, while the router delegates control to the controller for path updates. This approach ensures fast convergence by enabling the controller to react to network changes in real time and scales efficiently by centralizing path computation, avoiding per-router configuration overhead.","examTrap":"Cisco often tests the distinction between PCEP for dynamic pa