About Cisco 200-901 Exam
The Cisco 200-901 exam is a mandatory requirement for earning the Cisco Certified DevNet Associate certification. This is an associate-level certificate that verifies the candidates’ knowledge and skills in the management and development of apps created on the Cisco platforms.
Cisco 200-901 Exam: Target Audience
The 200-901 certification exam is suitable for the entry-level developers who want to launch their career in the industry and the experienced network engineers who are seeking to improve their expertise and add software and automation to their skill set.
Cisco 200-901 Exam: Recommended Knowledge and Experience
There are no official requirements for taking the Cisco 200-901 test. The only recommendation is to just be well-versed in the content involved in the exam outline. However, the applicants are recommended to have at least one year of experience in software development as well as working knowledge of a programming language (in particular, Python).
Cisco 200-901 Exam: Details and Features
The Cisco 200-901 test lasts for 2 hours and can be taken either in English or Japanese. You will receive access to scheduling your exam after paying the enrollment fee of $300. The exact number of questions in this certification test and their formats are unknown before the date of the real exam. Cisco also doesn’t reveal the passing scores for its tests as they are subject to change without notice.
Since very little is known about the 200-901 exam pattern, it is crucially important that you prepare for it thoroughly and cover all the topics beforehand. The best way to fulfill that task is to enroll for the official course “Developing Applications and Automating Workflows using Cisco Platforms (DEVASC)” available on the certification webpage.
Once you obtain your certificate, it will be valid for 3 years. After this period, you must recertify to maintain your status. You can do that by taking the latest release of your certification exam, completing various education activities offered by Cisco, or a combination of both.
Cisco 200-901 Exam: Content in Detail
The Cisco 200-901 exam covers a wide range of knowledge areas. These domains and their weight are enumerated below:
- Development of software – 15%
This objective includes differentiating various data formats (YAML, XML, JSON); explaining parsing of general data format (YAML, XML, JSON) to Python data structures; describing the principles of test-driven development; differentiating methods of software development (waterfall, agile, lean); explaining the advantages of uniting code into functions, modules, and classes; defining the advantages of general design patterns (Observer and MVC); explaining the benefits of version control; utilizing general version control operations with Git.
- Understanding and use of APIs – 20%
This topic encompasses the following skills: constructing the REST API request to accomplish a task given API documentation; describing common usage patterns related to webhooks; identifying the constraints when consuming APIs; explaining common HTTP response codes associated with REST APIs; troubleshooting a problem given the HTTP response code, request and API documentation; identifying the parts of an HTTP response (response code, headers, body); utilizing common API authentication mechanisms; comparing common API styles (REST, RPC, synchronous, and asynchronous); constructing a Python script that calls REST API using the requests library.
- Cisco platforms – 15%
This domain combines the questions that check the candidates’ ability to write a Python script incorporating Cisco SDK given SDK documentation; explain the capacity of Cisco APIs and network management platforms (Cisco DNA, Center, ACI, Meraki, NSO, Cisco SD-WAN); explain the capacity of Cisco APIs and compute management platforms (Intersight, UCS Director, UCS Manager); explain the capacity of Cisco APIs and collaboration platforms (Cisco Unified Communication Manager, Webex devices, Webex Teams, Finesse); explain the capacity of Cisco APIs and security platforms (Umbrella, Firepower, ISE, AMP, ThreatGrid); explain the device level dynamic interfaces and APIs for IOS XE and NX-OS; define the proper DevNet resource for a particular scenario (Code Exchange, Sandbox, Learning Labs, support, forums, API documentation); apply the principles of model driven programmability (NETCONF, YANG, RESTCONF) within a Cisco environment; build code to execute a particular operation on the basis of API reference documentation.
- Deployment of applications and their security – 15%
This subject covers the following competencies: explaining the advantages of edge computing; defining the attributes of various application deployment models (hybrid Cloud, private Cloud, public Cloud, edge); defining the attributes of the above-mentioned application deployment types; explaining the elements for the CICD pipeline within application deployments; designing a Python unit test interpreting contents of Dockerfile; utilizing Docker images in a local developer environment; defining application security problems associated with encryption, secret protection, data handling; explaining OWASP threats (including SQL injections, XSS, CSRF); applying Bash commands (directory navigation, environmental variables, file management); defining the DevOps practices principles.
- Infrastructure and automation concepts – 20%
Within this area, the examinees need to demonstrate that they are capable of explaining the utilization and functions of the network test and simulation tools (including pyATS and VIRL); explaining the elements and advantages of the CICD pipeline in automating infrastructure; explaining infrastructure principles as code; explaining the automation tools capacity (Cisco NSO, Ansible, Chef, Puppet); defining the workflow that is automated with the help of a Python script with Cisco APIs, such as Cisco DNA Center, ACI, RESTCONF, or Meraki; defining the workflow that is automated with the help of an Ansible playbook (user management related to services, management packages, basic service configuration, start/stop); defining the workflow that is automated with the help of a bash script (including app install, directory navigation, file management, user management); interpreting the results of a RESTCONF or NETCONF query; interpreting general YANG models; explaining the principles and advantages of reviewing the code; interpreting the sequence diagram with API calls; interpreting a unified diff.
- Fundamentals of networks – 15%
This topic area involves the following abilities: explaining the role and utilization of VLANs and MAC addresses; explaining the role and utilization of subnet prefix/mask, routes, IP addresses, and gateways; explaining the role of general networking elements (including firewalls, switches, routers, load balancers); interpreting a basic network topology diagram with the components, such as firewalls, switches, load balancers, routers, and port values; explaining the role of data, management, and control planes in a network device; explaining the functionality of IP services, such as DNS, DHCP, SNMP, NAT, NTP; recognizing general protocol port values (including HTTP, SSH, HTTPS, Telnet, NETCONF); identifying cause of application connectivity problems (VPN, proxy, NAT problem, Transport Port blocked); explaining the influence of network restraints on application.
Cisco 200-901 Exam: Career Prospects for Successful Candidates
After passing the Cisco 200-901 exam and obtaining the Cisco Certified DevNet Associate certification, the learners become eligible to land numerous job roles, such as:
- Junior Automation Engineer
- Junior DevOps Engineer
- Test Development Engineer
- Associate Site Engineer
- Junior Cloud Developer
- Automation Engineer
Adding this certificate to your resume can significantly raise your earnings. Thus, the average annual salary of an Automation Engineer amounts to $76,364, while the average pay of a Test Development Engineer is $87,814, according to PayScale.com.