WGU D416 DevNet Fundamentals | September 2026
WGU D416 DevNet Fundamentals
Master Study Guide | September 2026 Alignment
Aligned to WGU D416 course description and Cisco CCNA Automation 200-901
CCNAAUTO v1.1
Purpose
A comprehensive, original study guide for mastering the concepts and hands-on skills emphasized in WGU D416
and the current Cisco 200-901 automation blueprint. This guide does not reproduce proprietary exam questions or
guarantee a particular exam result.
Blueprint Domain Weight
1. Software Development and Design 15%
2. Understanding and Using APIs 20%
3. Cisco Platforms and Development 15%
4. Application Deployment and Security 15%
5. Infrastructure and Automation 20%
6. Network Fundamentals 15%
Current WGU catalog check: August 2026 is the current institutional catalog edition as of September 1, 2026.
WGU course description: D416 teaches automation and deployment of Cisco network solutions, including APIs,
scripting, Python programming, and software version control.
Cisco naming update: Cisco now markets the associated 200-901 exam as CCNA Automation (CCNAAUTO).
Original study guide - verify changing platform details against current official documentation
, WGU D416 DevNet Fundamentals | September 2026
How to Use This Guide
First pass: read Chapters 1-6 in blueprint order and complete each knowledge check.
Second pass: type every Python, Git, Bash, Docker, RESTCONF, and Ansible example rather than only
reading it.
Final review: use the command sheets, port table, HTTP status table, and 7-day review plan near the end.
Prioritize the two 20% domains (APIs; Infrastructure and Automation) while keeping all six domains active
in review.
Use Cisco documentation as the final authority when syntax or platform behavior changes.
Exam-oriented mindset
Expect to interpret code, request/response data, automation workflows, topology diagrams, and configuration
artifacts. Memorization helps, but the highest-value preparation is being able to trace what a script, API call,
playbook, Dockerfile, or network flow actually does.
Original study guide - verify changing platform details against current official documentation
, WGU D416 DevNet Fundamentals | September 2026
0. D416 Alignment and Study Priorities
0.1 What D416 is testing
D416 sits at the intersection of software development and network engineering. The central competency is not
simply “knowing Python” or “knowing Cisco.” It is being able to use software-development practices and
programmable interfaces to operate infrastructure reliably.
Skill cluster What mastery looks like
Read and organize Python; understand data structures,
Software development
functions, classes, modules, testing, design methods, and Git.
Build REST requests from documentation; authenticate;
API consumption interpret headers, bodies, and status codes; troubleshoot
failures.
Know what major Cisco controllers and platforms manage, and
Cisco platforms
choose appropriate APIs/resources.
Understand containers, CI/CD, unit tests, cloud/edge
Deployment/security
deployment, secrets, encryption, and common web threats.
Recognize IaC, Ansible/Terraform/NSO roles,
Automation RESTCONF/NETCONF/YANG, diffs, code review, and automated
workflows.
Interpret IP/VLAN/routing/topology concepts and diagnose
Networking
connectivity constraints affecting applications.
0.2 Recommended study emphasis
APIs (20%): requests, authentication, HTTP codes, request/response structure, webhooks, synchronous vs
asynchronous behavior.
Infrastructure and Automation (20%): YANG/NETCONF/RESTCONF, Ansible, Terraform, NSO, IaC, CI/CD,
diffs, pyATS/CML.
Python fluency: dictionaries/lists, loops, functions, exception handling, JSON parsing, requests, simple unit
tests.
Hands-on commands: Git, Bash, Docker.
Cisco platform recognition: what each controller/platform does and the kinds of objects its API exposes.
Networking fundamentals: ports, planes, IP services, NAT/proxy/VPN effects, and common application
constraints.
Original study guide - verify changing platform details against current official documentation
WGU D416 DevNet Fundamentals
Master Study Guide | September 2026 Alignment
Aligned to WGU D416 course description and Cisco CCNA Automation 200-901
CCNAAUTO v1.1
Purpose
A comprehensive, original study guide for mastering the concepts and hands-on skills emphasized in WGU D416
and the current Cisco 200-901 automation blueprint. This guide does not reproduce proprietary exam questions or
guarantee a particular exam result.
Blueprint Domain Weight
1. Software Development and Design 15%
2. Understanding and Using APIs 20%
3. Cisco Platforms and Development 15%
4. Application Deployment and Security 15%
5. Infrastructure and Automation 20%
6. Network Fundamentals 15%
Current WGU catalog check: August 2026 is the current institutional catalog edition as of September 1, 2026.
WGU course description: D416 teaches automation and deployment of Cisco network solutions, including APIs,
scripting, Python programming, and software version control.
Cisco naming update: Cisco now markets the associated 200-901 exam as CCNA Automation (CCNAAUTO).
Original study guide - verify changing platform details against current official documentation
, WGU D416 DevNet Fundamentals | September 2026
How to Use This Guide
First pass: read Chapters 1-6 in blueprint order and complete each knowledge check.
Second pass: type every Python, Git, Bash, Docker, RESTCONF, and Ansible example rather than only
reading it.
Final review: use the command sheets, port table, HTTP status table, and 7-day review plan near the end.
Prioritize the two 20% domains (APIs; Infrastructure and Automation) while keeping all six domains active
in review.
Use Cisco documentation as the final authority when syntax or platform behavior changes.
Exam-oriented mindset
Expect to interpret code, request/response data, automation workflows, topology diagrams, and configuration
artifacts. Memorization helps, but the highest-value preparation is being able to trace what a script, API call,
playbook, Dockerfile, or network flow actually does.
Original study guide - verify changing platform details against current official documentation
, WGU D416 DevNet Fundamentals | September 2026
0. D416 Alignment and Study Priorities
0.1 What D416 is testing
D416 sits at the intersection of software development and network engineering. The central competency is not
simply “knowing Python” or “knowing Cisco.” It is being able to use software-development practices and
programmable interfaces to operate infrastructure reliably.
Skill cluster What mastery looks like
Read and organize Python; understand data structures,
Software development
functions, classes, modules, testing, design methods, and Git.
Build REST requests from documentation; authenticate;
API consumption interpret headers, bodies, and status codes; troubleshoot
failures.
Know what major Cisco controllers and platforms manage, and
Cisco platforms
choose appropriate APIs/resources.
Understand containers, CI/CD, unit tests, cloud/edge
Deployment/security
deployment, secrets, encryption, and common web threats.
Recognize IaC, Ansible/Terraform/NSO roles,
Automation RESTCONF/NETCONF/YANG, diffs, code review, and automated
workflows.
Interpret IP/VLAN/routing/topology concepts and diagnose
Networking
connectivity constraints affecting applications.
0.2 Recommended study emphasis
APIs (20%): requests, authentication, HTTP codes, request/response structure, webhooks, synchronous vs
asynchronous behavior.
Infrastructure and Automation (20%): YANG/NETCONF/RESTCONF, Ansible, Terraform, NSO, IaC, CI/CD,
diffs, pyATS/CML.
Python fluency: dictionaries/lists, loops, functions, exception handling, JSON parsing, requests, simple unit
tests.
Hands-on commands: Git, Bash, Docker.
Cisco platform recognition: what each controller/platform does and the kinds of objects its API exposes.
Networking fundamentals: ports, planes, IP services, NAT/proxy/VPN effects, and common application
constraints.
Original study guide - verify changing platform details against current official documentation
