1z0-771 Sample Questions Answers

Key truths about Oracle APEX:

APEX eliminates middle tier application logic: APEX runs entirely within the Oracle Database, using PL/SQL and SQL for logic, bypassing traditional middle-tier servers (e.g., Java EE). This simplifies architecture and boosts performance.

You can build interactive reporting apps based on data from disparate systems: Via REST Data Sources, database links, or ORDS, APEX integrates data from external systems, enabling unified reporting (e.g., combining on-premises and cloud data).

Needs client software: False; APEX is web-based, requiring only a browser.

To run multiple processes in the background:

D. Execution Chain: This process type allows chaining multiple processes (e.g., PL/SQL, REST calls) to execute sequentially or conditionally in the background, managed via the Process Chain framework. It’s ideal for complex, asynchronous tasks (e.g., batch updates).

A. Execute Code: Not a process type in APEX; likely a misnomer.

B. Execute Server-side Code: Runs a single PL/SQL block synchronously, not multiple background tasks.

Logging in APEX tracks runtime activity:

A. apex_automation.log_info: Correctly logs an informational message to the execution log for automation tasks (e.g., workflows). The syntax || :ENAME || concatenates the item value (e.g., "JOHN") into "SAL for JOHN increased by 19." It’s stored in APEX_AUTOMATION_LOG, viewable in Monitoring.

B. apex_debug.info: Logs to debug output, but the syntax is flawed (:ENAME || isn’t concatenated properly; should be 'SAL for ' || :ENAME || ...). It’s valid only when debugging is enabled (e.g., APEX_DEBUG.ENABLE).

Dynamic Actions in APEX enable responsive behavior:

If a client-side condition is defined, the true action will fire when the condition is met: A condition (e.g., this.browserEvent === 'click') ensures the true action (e.g., Show, Hide) executes only when true, enhancing precision in event handling.

You can execute JavaScript code by creating a dynamic action: The "Execute JavaScript Code" action type allows custom scripts (e.g., alert('Clicked!');), extending functionality beyond declarative options.

Cannot add more true actions: False; multiple true actions can be added post-creation.

The "Create Data Model using AI" feature in APEX Assistant leverages AI to generate data models based on natural language input. The supported SQL format options are:

Quick SQL: A shorthand syntax for defining database objects, which APEX can convert into full DDL.

Page Designer’s layout modes under Utilities adjust the workspace:

A. Two Pane: Splits into two vertical sections (e.g., tree and properties), ideal for focusedediting.

B. Three Pane: Adds a third section (e.g., tree, grid, properties), offering a balanced view for complex pages.

C. Four Pane: Not available; APEX limits to three for usability.

The "Generate Text with AI" Dynamic Action uses Generative AI to:

Draft an email: Creates text content like emails based on prompts.

Object Browser in SQL Workshop is a GUI for managing schema objects:

B. Browse database objects of the current schema: Displays tables, views, procedures, etc., in a tree view, allowing inspection of definitions (e.g., columns, constraints) and data previews.

D. Create a lookup table based on a column in the current table: From a table’s column (e.g., DEPTNO), you can generate a lookup table (e.g., DEPT_LOOKUP) with unique values, automating reference table creation.

A. Restore dropped objects: Not supported; this requires DBA tools (e.g., FLASHBACK TABLE).

Plugins extend APEX’s functionality beyond built-in components:

C. Process: A Process plugin executes custom server-side logic (e.g., PL/SQL) during page processing or AJAX calls. Example: A plugin to sync data with an external API after form submission. It’s defined with execution points and parameters.

D. Region: A Region plugin creates custom UI areas (e.g., a dynamic chart or carousel). Example: A plugin rendering a custom dashboard. It supports attributes, templates, and refresh events.

A. Validation: While validations are customizable, they’re not a plugin type; they’re declarative or PL/SQL-based within APEX.

APEX Workspaces define development environments tied to database schemas:

A. During workspace creation, you can associate the workspace with an existing database schema: In the Workspace creation wizard (via Instance Administration), you select an existing schema (e.g., "HR") to link, enabling access to its objects. This is a standard step, ensuring immediate usability.

B. New schemas cannot be created during workspace creation: APEX doesn’t provide a UI to create schemas here; schemas must pre-exist in the database, created via SQL (e.g., CREATE USER).

C. A workspace can be associated with only one schema: False; a workspace can associate with multiple schemas post-creation via "Manage Workspace to Schema Assignments."

To send push notifications to all subscribed users, you must:

Enable push notifications at the application level (a prerequisite).

Declarative options for downloading BLOB/CLOB content include:

Download Dynamic Action: A built-in action type to trigger downloads of BLOB/CLOB data.