A telecom operator is designing an automation solution to provision new customer VPN services. The solution must integrate with the existing BSS/OSS systems and provide a self-service portal for customers. Which design approach best meets these requirements?

A direct database connection between the customer portal and the network devices to provision services.

A manual process where customers email service requests to the operator, and engineers configure the network.

A northbound REST API that integrates with the BSS/OSS and a self-service portal that calls the API to provision services.

A proprietary API that only works with the operator's own network devices, with no standard interface.

A network team is implementing model-driven management using YANG. They need to ensure that configuration changes are validated against the YANG models before being applied to devices. Which approach should they use?

Use NETCONF with the 'validate' capability to check the configuration against the YANG model before committing.

Apply the configuration directly and rely on the device to reject invalid configurations.

Use a script to manually check the configuration syntax before applying it.

Use SNMP to set the configuration and hope it is accepted by the device.

CiscoCertified Design Expert (CCDE)

Domain 2Objective 4

CD Framework) 400-007 Practice Questions (Page 6)

Part of the 2.0 Control, Data, Management Plane, and Operational Design domain, which accounts for 25% of the 400-007 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~13–20 in this domain), expect 2–3 from this objective — we provide 29 practice questions to prepare you well beyond it. (estimate)

29questions here

6free pages

6concepts

25%of the exam

6 Concepts in This Objective

API Integration for Network Automation
Model-Driven Management
Controller-Based Technologies
CI/CD Framework Evolution
Automation and Orchestration Design
Ongoing Support and Maintenance

Questions 26–29

26application · medium
A telecom operator is designing an automation solution to provision new customer VPN services. The solution must integrate with the existing BSS/OSS systems and provide a self-service portal for customers. Which design approach best meets these requirements?
Select an answer first
27foundation · easy
Which API style is commonly used for network automation because it uses HTTP methods (GET, POST, PUT, DELETE) and typically exchanges JSON or XML data?
Select an answer first
28foundation · easy
Which protocol is specifically designed for network management and uses YANG data models over a remote procedure call (RPC) layer, typically over SSH or TLS?
Select an answer first
29application · medium
A network team is implementing model-driven management using YANG. They need to ensure that configuration changes are validated against the YANG models before being applied to devices. Which approach should they use?
Select an answer first

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2.4 Automation/orchestration Design, Integration, and On-Going Support for Networks (such as Interfacing with APIs, Model-Driven Management, Controller-Based Technologies, and Evolution to CI/CD Framework) 400-007 Practice Questions (Page 6)

Questions 26–29

A telecom operator is designing an automation solution to provision new customer VPN services. The solution must integrate with the existing BSS/OSS systems and provide a self-service portal for customers. Which design approach best meets these requirements?

Which API style is commonly used for network automation because it uses HTTP methods (GET, POST, PUT, DELETE) and typically exchanges JSON or XML data?

Which protocol is specifically designed for network management and uses YANG data models over a remote procedure call (RPC) layer, typically over SSH or TLS?

A network team is implementing model-driven management using YANG. They need to ensure that configuration changes are validated against the YANG models before being applied to devices. Which approach should they use?

Keep studying — 2.0 Control, Data, Management Plane, and Operational Design