Overview

Welcome to Exam 200-901 DEVASC DevNet Associate Developer Exam 2025Developing Applications and Automating Workflows using Cisco Platforms (200-901 DEVASC) is a 120-minute exam that 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.200-901 DEVASC Exam Description: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.1.0 Software Development and Design1. Compare data formats (XML, JSON, and YAML)2. Describe parsing of common data format (XML, JSON, and YAML) to Python data structures3. Describe the concepts of test-driven development4. Compare software development methods (agile, lean, and waterfall)5. Explain the benefits of organizing code into methods / functions, classes, and modules6. Identify the advantages of common design patterns (MVC and Observer)7. Explain the advantages of version control8. Utilize common version control operations with Git8.a. Clone8.b. Add/remove8.c. Commit8.d. Push / pull8.e. Branch8.f. Merge and handling conflicts8.g. dif2.0 Understanding and Using APIs1. Construct a REST API request to accomplish a task given API documentation2. Describe common usage patterns related to webhooks3. Identify the constraints when consuming APIs4. Explain common HTTP response codes associated with REST APIs5. Troubleshoot a problem given the HTTP response code, request and API documentation6. Identify the parts of an HTTP response (response code, headers, body)7. Utilize common API authentication mechanisms: basic, custom token, and API keys8. Compare common API styles (REST, RPC, synchronous, and asynchronous)9. Construct a Python script that calls a REST API using the requests library3.0 Cisco Platforms and Development1. Construct a Python script that uses a Cisco SDK given SDK documentation2. Describe the capabilities of Cisco network management platforms and APIs (Meraki, Cisco DNA Center, ACI, Cisco SD-WAN, and NSO)3. Describe the capabilities of Cisco compute management platforms and APIs (UCS Manager and Intersight)4. Describe the capabilities of Cisco collaboration platforms and APIs (Webex, Webex devices, Cisco Unified Communication Manager including AXL and UDS interfaces)5. Describe the capabilities of Cisco security platforms and APIs (XDR, Firepower, Umbrella, Secure Endpoint, ISE, and Secure Malware Analytics)6. Describe the device level APIs and dynamic interfaces for IOS XE and NX-OS7. Identify the appropriate DevNet resource for a given scenario (Sandbox, Code Exchange, support, forums, Learning Labs, and API documentation)8. Apply concepts of model driven programmability (YANG, RESTCONF, and NETCONF) in a Cisco environment9. Construct code to perform a specific operation based on a set of requirements and given API reference documentation such as these:9.a. Obtain a list of network devices by using Meraki, Cisco DNA Center, ACI, Cisco SD-WAN, or NSO9.b. Manage spaces, participants, and messages in Webex9.c. Obtain a list of clients / hosts seen on a network using Meraki or Cisco DNA Center4.0 Application Deployment and Security1. Describe benefits of edge computing2. Identify attributes of different application deployment models (private cloud, public cloud, hybrid cloud, and edge)3. Identify the attributes of these application deployment types3.a. Virtual machines3.b. Bare metal3.c. Containers4. Describe components for a CI/CD pipeline in application deployments5. Construct a Python unit test6. Interpret contents of a Dockerfile7. Utilize Docker images in local developer environment8. Identify application security issues related to secret protection, encryption (storage and transport), and data handling9. Explain how firewall, DNS, load balancers, and reverse proxy in application deployment10. Describe top OWASP threats (such as XSS, SQL injections, and CSRF)11. Utilize Bash commands (file management, directory navigation, and environmental variables)12. Identify the principles of DevOps practices5.0 Infrastructure and Automation1. Describe the value of model driven programmability for infrastructure automation2. Compare controller-level to device-level management3. Describe the use and roles of network simulation and test tools (such as Cisco Modeling Labs and pyATS)4. Describe the components and benefits of CI/CD pipeline in infrastructure automation5. Describe principles of infrastructure as code6. Describe the capabilities of automation tools such as Ansible, Terraform, and Cisco NSO7. Identify the workflow being automated by a Python script that uses Cisco APIs including ACI, Meraki, Cisco DNA Center, and RESTCONF8. Identify the workflow being automated by an Ansible playbook (management packages, user management related to services, basic service configuration, and start/stop)9. Identify the workflow being automated by a bash script (such as file management, app install, user management, directory navigation)10. Interpret the results of a RESTCONF or NETCONF query11. Interpret basic YANG models12. Interpret a unified diff13. Describe the principles and benefits of a code review process14. Interpret sequence diagram that includes API calls6.0 Network Fundamentals1. Describe the purpose and usage of MAC addresses and VLANs2. Describe the purpose and usage of IP addresses, routes, subnet mask / prefix, and gateways3. Describe the function of common networking components (such as switches, routers, firewalls, and load balancers)4. Interpret a basic network topology diagram with elements such as switches, routers, firewalls, load balancers, and port values5. Describe the function of management, data, and control planes in a network device6. Describe the functionality of these IP Services: DHCP, DNS, NAT, SNMP, NTP7. Recognize common protocol port values (such as, SSH, Telnet, HTTP, HTTPS, and NETCONF)8. Identify cause of application connectivity issues (NAT problem, Transport Port blocked, proxy, and VPN)9. Explain the impacts of network constraints on applications

Skills

Reviews