Oracle APEX Cloud Developer Professional Practice Exam: Test Your Knowledge 2025

What is the primary purpose of the APEX Listener (ORDS) in an Oracle APEX architecture?

A developer needs to create a master-detail form where changes to detail records are not committed until the master record is saved. Which approach should they use?

Which PL/SQL package function should a developer use to retrieve the value of an application item named 'G_USER_ROLE' within a dynamic SQL query?

An organization wants to prevent unauthorized access to an APEX application by restricting access to users from specific IP addresses. Where should this security control be implemented?

A developer needs to integrate an APEX application with an external REST API that requires OAuth 2.0 authentication. Which APEX feature should they use?

What is the purpose of the APEX dictionary views that begin with 'APEX_APPLICATION_'?

A developer created an Interactive Report and needs to ensure that specific columns are never displayed to users, even if they try to customize the report. What should the developer do?

When using APEX_COLLECTION to temporarily store data, which statement is TRUE about the collection's lifecycle?

An APEX application requires that certain pages only be accessible to users who belong to a specific role defined in a custom table. What is the BEST way to implement this requirement?

A developer needs to create a complex validation that checks data across multiple tables and involves business logic. The validation may need to return different error messages based on different conditions. What is the recommended approach?

What is the difference between using APEX_UTIL.PREPARE_URL and constructing a URL manually with concatenation in a PL/SQL process?

A developer needs to debug a performance issue in an APEX application where a page is loading slowly. Which tool or feature should they use FIRST to identify the bottleneck?

In an APEX Interactive Grid, a developer wants to implement a cascading LOV where the second column's values depend on the first column's selection. What is the correct approach?

A developer needs to send the value of page item P1_DEPARTMENT_ID to a database procedure as part of a page process. However, the procedure expects a NUMBER type and the item value might be NULL. What is the safest way to handle this?

An APEX workspace administrator needs to migrate an application from a development environment to production. The application uses REST Data Sources, Web Credentials, and Remote SQL queries. What must be done in the target environment?

Which APEX component is responsible for storing the definition of an application's pages, regions, items, and processes?

A developer needs to implement row-level security in an Interactive Report so users can only see records they own. The user identifier is stored in the APEX_CUSTOM_AUTH.GET_USERNAME function. What is the BEST approach?

An APEX application uses a packaged procedure that takes 30 seconds to execute. During this time, users report that the page appears frozen. What is the BEST way to improve the user experience?

What is the purpose of the APEX_AUTHENTICATION.LOGIN procedure?

A development team wants to use version control for their APEX applications. What is the recommended approach?