Developing Applications Using Cisco Core Platforms and APIs (DEVCOR 300-901)
Exam Description
Developing Applications using Cisco Core Platforms and APIs v1.0 (DEVCOR
300-901) is a 120-minute exam associated with the DevNet Professional
Certification. This exam tests a candidate’s knowledge of software development
and design including using APIs, Cisco platforms, application deployment and
security, and infrastructure and automation. The course, Developing Applications
using Cisco Core Platforms and APIs helps candidates to prepare for this exam.
The following topics are general guidelines for the content likely to be
included on the exam. However, other related topics may also appear on any
specific delivery of the exam. To better reflect the contents of the exam and
for clarity purposes, the guidelines below may change at any time without
notice.
1.0 Software Development and Design 20%
1.1 Describe distributed applications related to the concepts of front-end,
back-end, and load balancing
1.2 Evaluate an application design considering scalability and modularity
1.3 Evaluate an application design considering high-availability and resiliency
(including on-premises, hybrid, and cloud)
1.4 Evaluate an application design considering latency and rate limiting
1.5 Evaluate an application design and implementation considering
maintainability
1.6 Evaluate an application design and implementation considering observability
1.7 Diagnose problems with an application given logs related to an event
1.8 Evaluate choice of database types with respect to application requirements
(such as relational, document, graph, columnar, and Time Series)
1.9 Explain architectural patterns (monolithic, services oriented, microservices,
and event driven)
1.10 Utilize advanced version control operations with Git
1.10.a Merge a branch
1.10.b Resolve conflicts
1.10.c git reset
1.10.d git checkout
1.10.e git revert
1.11 Explain the concepts of release packaging and dependency management
1.12 Construct a sequence diagram that includes API calls
2.0 Using APIs 20%
2.1 Implement robust REST API error handling for time outs and rate limits
2.2 Implement control flow of consumer code for unrecoverable REST API errors
2.3 Identify ways to optimize API usage through HTTP cache controls
2.4 Construct an application that consumes a REST API that supports pagination
2.5 Describe the steps in the OAuth2 three-legged authorization code grant flow
3.0 Cisco Platforms 20%
3.1 Construct API requests to implement chatops with Webex Teams API
3.2 Construct API requests to create and delete objects using Firepower device
management (FDM)
3.3 Construct API requests using the Meraki platform to accomplish these tasks
3.3.a Use Meraki Dashboard APIs to enable an SSID
3.3.b Use Meraki location APIs to retrieve location data
3.4 Construct API calls to retrieve data from Intersight
3.5 Construct a Python script using the UCS APIs to provision a new UCS server
given a template
3.6 Construct a Python script using the Cisco DNA center APIs to retrieve and
display wireless health information
3.7 Describe the capabilities of AppDynamics when instrumenting an application
3.8 Describe steps to build a custom dashboard to present data collected from
Cisco APIs
4.0 Application Deployment and Security 20%
4.1 Diagnose a CI/CD pipeline failure (such as missing dependency,
incompatible versions of components, and failed tests)
4.2 Integrate an application into a prebuilt CD environment leveraging Docker
and Kubernetes
4.3 Describe the benefits of continuous testing and static code analysis in a CI
pipeline
4.4 Utilize Docker to containerize an application
4.5 Describe the tenets of the “12-factor app”
4.6 Describe an effective logging strategy for an application
4.7 Explain data privacy concerns related to storage and transmission of data
4.8 Identify the secret storage approach relevant to a given scenario
4.9 Configure application specific SSL certificates
4.10 Implement mitigation strategies for OWASP threats (such as XSS, CSRF, and
SQL injection)
4.11 Describe how end-to-end encryption principles apply to APIs
5.0 Infrastructure and Automation 20%
5.1 Explain considerations of model-driven telemetry (including data
consumption and data storage)
5.2 Utilize RESTCONF to configure a network device including interfaces, static
routes, and VLANs (IOS XE only)
5.3 Construct a workflow to configure network parameters with:
5.3.a Ansible playbook
5.3.b Puppet manifest
5.4 Identify a configuration management solution to achieve technical and
business requirements
5.5 Describe how to host an application on a network device (including Catalyst
9000 and Cisco IOx-enabled devices)
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