Exam Description
DevNet Associate Exam v1.0 (DEVASC 200-901) is a 120-minute exam associated
with the DevNet Associate – Developer Certification. This exam tests a
candidate’s knowledge of software development and design including understanding
and using APIs, Cisco platforms and development, application development and
security, and infrastructure and automation. The course, Developing Applications
and Automating Workflows using Cisco Core Platforms, 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 15%
1.1 Compare data formats (XML, JSON, and YAML)
1.2 Describe parsing of common data format (XML, JSON, and YAML) to Python data
structures
1.3 Describe the concepts of test-driven development
1.4 Compare software development methods (agile, lean, and waterfall)
1.5 Explain the benefits of organizing code into methods / functions, classes,
and modules
1.6 Identify the advantages of common design patterns (MVC and Observer)
1.7 Explain the advantages of version control
1.8 Utilize common version control operations with Git
1.8.a Clone
1.8.b Add/remove
1.8.c Commit
1.8.d Push / pull
1.8.e Branch
1.8.f Merge and handling conflicts
1.8.g diff
2.0 Understanding and Using APIs 20%
2.1 Construct a REST API request to accomplish a task given API
documentation
2.2 Describe common usage patterns related to webhooks
2.3 Identify the constraints when consuming APIs
2.4 Explain common HTTP response codes associated with REST APIs
2.5 Troubleshoot a problem given the HTTP response code, request and API
documentation
2.6 Identify the parts of an HTTP response (response code, headers, body)
2.7 Utilize common API authentication mechanisms: basic, custom token, and API
keys
2.8 Compare common API styles (REST, RPC, synchronous, and asynchronous)
2.9 Construct a Python script that calls a REST API using the requests library
3.0 Cisco Platforms and Development 15%
3.1 Construct a Python script that uses a Cisco SDK given SDK documentation
3.2 Describe the capabilities of Cisco network management platforms and APIs (Meraki,
Cisco DNA Center, ACI, Cisco SD-WAN, and NSO)
3.3 Describe the capabilities of Cisco compute management platforms and APIs (UCS
Manager, UCS Director, and Intersight)
3.4 Describe the capabilities of Cisco collaboration platforms and APIs (Webex
Teams, Webex devices, Cisco Unified Communication Manager including AXL and UDS
interfaces, and Finesse)
3.5 Describe the capabilities of Cisco security platforms and APIs (Firepower,
Umbrella, AMP, ISE, and ThreatGrid)
3.6 Describe the device level APIs and dynamic interfaces for IOS XE and NX-OS
3.7 Identify the appropriate DevNet resource for a given scenario (Sandbox, Code
Exchange, support, forums, Learning Labs, and API documentation)
3.8 Apply concepts of model driven programmability (YANG, RESTCONF, and NETCONF)
in a Cisco environment
3.9 Construct code to perform a specific operation based on a set of
requirements and given API reference documentation such as these:
3.9.a Obtain a list of network devices by using Meraki, Cisco DNA Center, ACI,
Cisco SD-WAN, or NSO
3.9.b Manage spaces, participants, and messages in Webex Teams
3.9.c Obtain a list of clients / hosts seen on a network using Meraki or Cisco
DNA Center
4.0 Application Deployment and Security 15%
4.1 Describe benefits of edge computing
4.2 Identify attributes of different application deployment models (private
cloud, public cloud, hybrid cloud, and edge)
4.3 Identify the attributes of these application deployment types
4.3.a Virtual machines
4.3.b Bare metal
4.3.c Containers
4.4 Describe components for a CI/CD pipeline in application deployments
4.5 Construct a Python unit test
4.6 Interpret contents of a Dockerfile
4.7 Utilize Docker images in local developer environment
4.8 Identify application security issues related to secret protection,
encryption (storage and transport), and data handling
4.9 Explain how firewall, DNS, load balancers, and reverse proxy in application
deployment
4.10 Describe top OWASP threats (such as XSS, SQL injections, and CSRF)
4.11 Utilize Bash commands (file management, directory navigation, and
environmental variables)
4.12 Identify the principles of DevOps practices
5.0 Infrastructure and Automation 20%
5.1 Describe the value of model driven programmability for infrastructure
automation
5.2 Compare controller-level to device-level management
5.3 Describe the use and roles of network simulation and test tools (such as
VIRL and pyATS)
5.4 Describe the components and benefits of CI/CD pipeline in infrastructure
automation
5.5 Describe principles of infrastructure as code
5.6 Describe the capabilities of automation tools such as Ansible, Puppet, Chef,
and Cisco NSO
5.7 Identify the workflow being automated by a Python script that uses Cisco
APIs including ACI, Meraki, Cisco DNA Center, or RESTCONF
5.8 Identify the workflow being automated by an Ansible playbook (management
packages, user management related to services, basic service configuration, and
start/stop)
5.9 Identify the workflow being automated by a bash script (such as file
management, app install, user management, directory navigation)
5.10 Interpret the results of a RESTCONF or NETCONF query
5.11 Interpret basic YANG models
5.12 Interpret a unified diff
5.13 Describe the principles and benefits of a code review process
5.14 Interpret sequence diagram that includes API calls
6.0 Network Fundamentals 15%
6.1 Describe the purpose and usage of MAC addresses and VLANs
6.2 Describe the purpose and usage of IP addresses, routes, subnet mask /
prefix, and gateways
6.3 Describe the function of common networking components (such as switches,
routers, firewalls, and load balancers)
6.4 Interpret a basic network topology diagram with elements such as switches,
routers, firewalls, load balancers, and port values
6.5 Describe the function of management, data, and control planes in a network
device
6.6 Describe the functionality of these IP Services: DHCP, DNS, NAT, SNMP, NTP
6.7 Recognize common protocol port values (such as, SSH, Telnet, HTTP, HTTPS,
and NETCONF)
6.8 Identify cause of application connectivity issues (NAT problem, Transport
Port blocked, proxy, and VPN)
6.9 Explain the impacts of network constraints on applications
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