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Cisco Certified DevNet Associate certification is your entry into a career in network automation. This certification validates your ability to implement basic network applications using Cisco platforms as a base, and to implement automation workflows across network, security, collaboration, and computing infrastructure.DevNet Associate Exam (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.Cisco 200-901 DEVASC Exam Topics:Software Development and Design1.1 Compare data formats (XML, JSON, and YAML)1.2 Describe parsing of common data format (XML, JSON, and YAML) to Python data structures1.3 Describe the concepts of test-driven development1.4 Compare software development methods (agile, lean, and waterfall)1.5 Explain the benefits of organizing code into methods / functions, classes, and modules1.6 Identify the advantages of common design patterns (MVC and Observer)1.7 Explain the advantages of version contro1.8 Utilize common version control operations with GitUnderstanding and Using APIs2.1 Construct a REST API request to accomplish a task given API documentation2.2 Describe common usage patterns related to webhooks2.3 Identify the constraints when consuming APIs2.4 Explain common HTTP response codes associated with REST APIs2.5 Troubleshoot a problem given the HTTP response code, request and API documentation2.6 Identify the parts of an HTTP response (response code, headers, body)2.7 Utilize common API authentication mechanisms: basic, custom token, and API keys2.8 Compare common API styles (REST, RPC, synchronous, and asynchronous)2.9 Construct a Python script that calls a REST API using the requests libraryCisco Platforms and Development3.1 Construct a Python script that uses a Cisco SDK given SDK documentation3.2 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-OS3.7 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 environmentApplication Deployment and Security4.1 Describe benefits of edge computing4.2 Identify attributes of different application deployment models (private cloud, public cloud, hybrid cloud, and edge)4.3 Identify the attributes of these application deployment types4.4 Describe components for a CI/CD pipeline in application deployments4.5 Construct a Python unit test4.6 Interpret contents of a Dockerfile4.7 Utilize Docker images in local developer environment4.8 Identify application security issues related to secret protection, encryption (storage and transport), and data handling4.9 Explain how firewall, DNS, load balancers, and reverse proxy in application deployment4.10 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 practicesInfrastructure and Automation5.1 Describe the value of model driven programmability for infrastructure automation5.2 Compare controller-level to device-level management5.3 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 automation5.5 Describe principles of infrastructure as code5.6 Describe the capabilities of automation tools such as Ansible, Puppet, Chef, and Cisco NSO5.7 Identify the workflow being automated by a Python script that uses Cisco APIs including ACI, Meraki, Cisco DNA Center, or RESTCONF5.8 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 query5.11 Interpret basic YANG models5.12 Interpret a unified diff5.13 Describe the principles and benefits of a code review process5.14 Interpret sequence diagram that includes API callsNetwork Fundamentals6.1 Describe the purpose and usage of MAC addresses and VLANs6.2 Describe the purpose and usage of IP addresses, routes, subnet mask / prefix, and gateways6.3 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 values6.5 Describe the function of management, data, and control planes in a network device6.6 Describe the functionality of these IP Services: DHCP, DNS, NAT, SNMP, NTP6.7 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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