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Cisco CCNA Automation Course Notes

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Section 11.0 Software Development and Design (15%)Preview
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Summary

Use the official objective verbs as the study task: understand the protocol or abstraction, apply it to a scenario, and explain the operational consequence.

Key Points

  • JSON objects and arrays map naturally to Python dictionaries and lists; XML is hierarchical and YAML is indentation-sensitive.

Common Mistakes

  • Assuming YAML and JSON are interchangeable on the wire or ignoring XML namespaces.

Exam Tips

  • Inspect the parsed Python type before indexing; JSON arrays and objects do not have the same access pattern.
Section 22.0 Understanding and Using APIs (20%)Preview
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Summary

Use the official objective verbs as the study task: understand the protocol or abstraction, apply it to a scenario, and explain the operational consequence.

Key Points

  • A REST request is the documented method, path, path variables, query, headers, authentication, body, and media type together.

Common Mistakes

  • Guessing a POST from the resource name or omitting a required path identifier.

Exam Tips

  • Build the request from the reference in order: method, URL, path/query, headers, body, auth, expected response.
Section 33.0 Cisco Platforms and Development (15%)Preview
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Summary

Use the official objective verbs as the study task: understand the protocol or abstraction, apply it to a scenario, and explain the operational consequence.

Key Points

  • Select the Cisco platform by the resource scope: Meraki organization, Catalyst Center controller, ACI fabric, Catalyst SD-WAN overlay, or NSO service model.

Common Mistakes

  • Guessing method names or assuming SDK defaults match another Cisco platform.

Exam Tips

  • Ask ‘who owns this resource?’ before choosing Meraki, Catalyst Center, ACI, SD-WAN, NSO, UCS, Intersight, Webex, or UCM.
Section 44.0 Application Deployment and Security (15%)Preview
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Summary

Use the official objective verbs as the study task: understand the protocol or abstraction, apply it to a scenario, and explain the operational consequence.

Key Points

  • Edge computing places processing near users, devices, or data to reduce latency, bandwidth use, or central-site dependence.

Common Mistakes

  • Assuming edge eliminates the need for security, lifecycle management, or synchronization.

Exam Tips

  • Keep deployment model, runtime type, pipeline, network front door, and application security as separate decisions.
Section 55.0 Infrastructure and Automation (20%)Preview
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Summary

Use the official objective verbs as the study task: understand the protocol or abstraction, apply it to a scenario, and explain the operational consequence.

Key Points

  • Model-driven automation uses a schema and desired state for validation, repeatability, and machine-readable changes.

Common Mistakes

  • Calling any script with a JSON payload model-driven without a schema or validation contract.

Exam Tips

  • Keep desired configuration, provider state, live device state, and generated plan conceptually separate.
Section 66.0 Network Fundamentals (15%)Preview
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Summary

Use the official objective verbs as the study task: understand the protocol or abstraction, apply it to a scenario, and explain the operational consequence.

Key Points

  • MAC addresses identify local Layer 2 interfaces; VLANs create broadcast domains and trunks carry tagged VLAN traffic.

Common Mistakes

  • Assuming a VLAN is an IP subnet by definition or that a switch can route without a Layer 3 function.

Exam Tips

  • Trace from name to address, prefix, route, next hop, policy, translation, transport port, and application listener.