A team maintains a REST API for network device inventory. A recent change to the authentication middleware caused a regression in the device lookup endpoint. The team wants to prevent this class of regression in the future. Which testing practice is most directly aimed at this goal?

Add regression tests that run the full API test suite on every commit in CI/CD.

Write more unit tests for the authentication middleware only.

Perform manual testing of the device lookup endpoint after every release.

Remove the authentication middleware to simplify the codebase.

A team is refactoring a monolithic network automation application into a microservices architecture. The current application uses a shared database and direct function calls between components. The team wants to improve maintainability by decoupling services, but they are concerned about the complexity of managing distributed transactions. Which design approach best balances decoupling with maintainability?

Use direct HTTP calls between services and manage transactions with a two-phase commit protocol.

Use dependency injection to provide each service with its own data access layer, and use an event-driven approach for cross-service communication.

Combine all services back into a single deployable unit to simplify transaction management.

Keep the shared database but add an API layer in front of each component.

What is the primary goal of refactoring?

To add new features to the application

To improve code maintainability without changing its external behavior

To optimize performance at the cost of readability

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Domain 1Objective 5

Evaluate an Application Design and Implementation Considering Maintainability 350-901 Practice Questions (Page 8)

Part of the 1.0 Software Development and Design domain, which accounts for 20% of the 350-901 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 1–1 from this objective — we provide 38 practice questions to prepare you well beyond it. (estimate)

38questions here

8free pages

10concepts

20%of the exam

Questions 36–38

36application · medium
A team maintains a REST API for network device inventory. A recent change to the authentication middleware caused a regression in the device lookup endpoint. The team wants to prevent this class of regression in the future. Which testing practice is most directly aimed at this goal?
Select an answer first
37expert · hard
A team is refactoring a monolithic network automation application into a microservices architecture. The current application uses a shared database and direct function calls between components. The team wants to improve maintainability by decoupling services, but they are concerned about the complexity of managing distributed transactions. Which design approach best balances decoupling with maintainability?
Select an answer first
38foundation · easy
What is the primary goal of refactoring?
Select an answer first

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Evaluate an Application Design and Implementation Considering Maintainability 350-901 Practice Questions (Page 8)

Questions 36–38

A team maintains a REST API for network device inventory. A recent change to the authentication middleware caused a regression in the device lookup endpoint. The team wants to prevent this class of regression in the future. Which testing practice is most directly aimed at this goal?

What is the primary goal of refactoring?

Keep studying — 1.0 Software Development and Design