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NEW QUESTION # 15
Which two statements are true about Oracle APEX?
Answer: B,D
Explanation:
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.
Application definition not stored in database: False; definitions are stored as metadata in the database (e.g., APEX_APPLICATIONS).
This reflects APEX's database-centric, low-code philosophy.
NEW QUESTION # 16
The Movies faceted search report is filtered only when the Apply button for a selected facet is clicked. What must be done in the Page Designer so that report filtering is automatically executed when any facet value is selected?
Answer: B
Explanation:
By default, faceted search can "batch" changes, requiring an "Apply" button click to filter the report. To enable automatic filtering:
Disable the Batch Facet Changes attribute: In Page Designer, under the Faceted Search region's Attributes, setting "Batch Facet Changes" to "No" ensures the report refreshes immediately when a facet value is selected, improving responsiveness. This triggers an AJAX call to update the report without a manual submit.
Show Facet Name: This controls facet label visibility, unrelated to filtering behavior.
Client-Side Filtering: This applies to Interactive Reports/Grids, not faceted search regions, and isn't the correct solution here.
This adjustment enhances the user experience by providing instant feedback.
NEW QUESTION # 17
Which two SQL format options does the APEX Assistant provide when using the "Create Data Model using AI" feature?
Answer: A,C
Explanation:
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.
Oracle SQL: Standard SQL syntax compatible with Oracle Database for creating tables and other objects.
MySQL is not supported as it's specific to a different database system, and Oracle PL/SQL is a procedural language, not a format for defining data models in this context.
NEW QUESTION # 18
Which component of the Push Notifications feature stores the messages that are ready to be sent?
Answer: B
Explanation:
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.
NEW QUESTION # 19
Which is a valid method of logging messages to the execution log in APEX applications?
Answer: A
Explanation:
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).
C . apex_error.add_error: Adds an error to the error stack for user display, not a log message.
Technical Insight: log_info is non-intrusive, unlike apex_debug, which requires debug mode, or apex_error, which signals failure.
Use Case: Logging salary updates in a scheduled job without debug overhead.
Pitfall: Ensure :ENAME is in scope (e.g., page item).
NEW QUESTION # 20
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