Oracle 1Z0-771 Exam Dumps

Faceted search pages in APEX provide dynamic filtering. The true statements are:

Faceted Search supports the ability to filter columns storing multiple values: Facets can handle multi-value columns (e.g., comma-separated lists or JSON arrays) using appropriate SQL (e.g., INSTR or JSON_TABLE), enabling complex filtering scenarios like tags or categories.

Facets map to specific database columns: Each facet is tied to a column in the underlying query (e.g., DEPTNO or JOB), ensuring data-driven filtering.

Multiple charts are not visible in the same region: False; multiple facets can display charts within the same region, depending on settings.

A facet's chart can be seen only in a nonmodal dialog: False; charts can appear inline or in dialogs, configurable via facet attributes.

This functionality makes faceted search ideal for exploratory data analysis.

Push Notifications in Oracle APEX enable real-time messaging to users' devices via Progressive Web App (PWA) capabilities. The component responsible for storing messages is:

A . Queue: The Push Notification Queue (managed internally by APEX and accessible via APIs like APEX_PWA.PUSH_QUEUE) temporarily holds messages scheduled for delivery. When a notification is created (e.g., via APEX_PWA.SEND), it's added to this queue, awaiting processing by the APEX mail system or an external push service. The queue ensures reliable delivery, even if the user is offline temporarily, as messages are dispatched once connectivity is restored.

B . Application: The application defines the PWA settings and logic but doesn't store messages; it's the container, not the storage mechanism.

C . Subscription: Represents user device registrations (stored in APEX_APPL_PUSH_SUBSCRIPTIONS), not the messages themselves. Subscriptions link devices to the app for delivery, not queuing.

Technical Insight: The queue is a database-backed structure, leveraging Oracle's job scheduling (e.g., DBMS_SCHEDULER) to process entries. For example, calling APEX_PWA.SEND(p_message => 'Promo Alert!') adds an entry to the queue, which is then pushed to subscribed devices.

Use Case: A retail app queues a 'Sale starts now!' message for 1,000 users, ensuring orderly delivery without overwhelming the server.

Pitfall: If the queue isn't periodically pushed (e.g., via APEX_PWA.PUSH_QUEUE), messages may delay.

Static Content regions display fixed text with substitution:

B . &P1_ENAME.: The &ITEM_NAME. syntax substitutes the value of P1_ENAME at runtime (e.g., 'Join me in congratulating: John as...'), correctly rendering the item's value. The dot ensures proper parsing.

A . P1_ENAME: Treated as literal text, not substituted.

C . V('P1_ENAME'): A PL/SQL function, invalid in static content; it's for server-side code.

D . & P1_ENAME.: Space before P1_ENAME breaks substitution syntax.

Pitfall: Ensure P1_ENAME is populated (e.g., via a page process) to avoid blank output.

The 'Create App using Generative AI' feature in APEX Assistant leverages natural language processing to automate application creation. When invoked:

Create the application blueprint: APEX Assistant generates a foundational structure (blueprint) for the application, including pages, regions, and navigation, based on the user's natural language input (e.g., 'Create an app to manage employees'). This blueprint serves as the starting point, which developers can refine.

Add a Dashboard page: The Assistant can interpret requests for specific page types, such as dashboards, and include them in the generated app. Dashboards typically feature charts, summaries, or key metrics, and this is a common task supported by the AI-driven creation process.

Create a Generative AI service: This is not a task performed during app creation; instead, it's a prerequisite configuration step done separately in the Instance Administration settings.

Update the App icon: While app icons can be customized manually post-creation, this is not an automated task performed by APEX Assistant during the generative process.

This feature streamlines development by interpreting intent and building functional components, saving significant time compared to manual creation.

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.

B . Email Template: Email formatting is handled via APEX_MAIL or templates in Shared Components, not as plugins.

Technical Insight: Plugins are created in Shared Components > Plug-ins, requiring PL/SQL for logic, JavaScript/CSS for UI, and a render function. For instance, a Region plugin might use apex_plugin.t_region to define its output.

Use Case: A Process plugin to log audit trails or a Region plugin for a unique data visualization.

Pitfall: Developing plugins requires advanced skills; test thoroughly to avoid runtime errors.