ETExamTower
200-901Updated 19d ago · Sep 15, 2026

DevNet Associate (DEVASC)

625 questions across 1 topics, with suggested answers, explanations where available, and imported community discussion. The first 62 questions are free to preview.

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Question 1 · Infrastructure and Automation Open

A developer is preparing a Python application to monitor network performance for specific applications. The developer tests the code in a test environment but needs additional use cases and wants to enhance the scripts for different networks. Which resource must be used to benefit from open-source communities and contributors for the application?

Answer: A Cisco Code Exchange provides curated code repositories from community contributors and open-source communities, enabling developers to discover, reuse, and contribute code and automation use cases for network applications. **Learn more:** [About Cisco Code Exchange](https://developer.cisco.com/site/codeexchange-about-page/)
Question 2 · Application Deployment and Security Open

Which of the following is an example of a cross-site request forgery attack?

Answer: A Cross-site request forgery causes a browser belonging to an already authenticated user to send a request that performs an action the user did not intend, relying on that user’s existing session credentials. **Learn more:** [OWASP: Cross-Site Request Forgery (CSRF)](https://owasp.org/www-community/attacks/csrf) · [OWASP CSRF Prevention Cheat Sheet](https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html)
Question 3 · Cisco Platforms and Development Open

What is one feature of Cisco Modeling Labs?

Answer: C Cisco Modeling Labs enables network designs to be created and tested using virtual network devices and topologies. **Learn more:** [Cisco Modeling Labs (DevNet)](https://developer.cisco.com/modeling-labs/) · [Cisco Modeling Labs User Guide: Overview](https://www.cisco.com/c/en/us/td/docs/cloud_services/cisco_modeling_labs/v200/configuration/guide/b_cml_user_guide_2-0/m_intro.html)