At which Layer does Cisco DNA Center support REST controls?

Question

Options

• AEEM applets or scripts
• BSession layer
• CYMAL output from responses to API calls
• DNorthbound APIs

• B
  5% (2)
• C
  2% (1)
• D
  93% (38)

Explanation

Cisco DNA Center REST Controls Explanation

Cisco DNA Center exposes its programmability and REST controls through Northbound APIs, which allow external applications, orchestration tools, and management systems to communicate with the controller "above" it in the management hierarchy - making Option D correct. Northbound APIs are the standard mechanism by which SDN controllers like Cisco DNA Center receive instructions and share data with higher-level systems, and REST is a common protocol used at this layer.

Why the distractors are wrong:

• Option A (EEM applets/scripts) refers to Cisco's Embedded Event Manager, a device-level automation tool used on IOS routers/switches - not a DNA Center API layer.
• Option B (Session layer) refers to OSI Layer 5, which manages communication sessions between devices; REST APIs don't operate at this OSI layer specifically.
• Option C (YAML output) is a distractor because DNA Center APIs typically return JSON, not YAML, and either way, the output format doesn't define where REST controls are supported.

Memory Tip: Think "North = Up = Outside control" - Northbound APIs face upward toward external management systems, which is exactly where REST controls live. Southbound APIs go down to the network devices themselves.

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