Free Oracle (1Z1-771) Certification Sample Questions with Online Practice Test
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NEW QUESTION # 20
Which is a valid method of logging messages to the execution log in APEX applications?
- A. apex_error.add_error ('SAL for ' || :ENAME || ' increased by 19.');
- B. apex_debug.info ('SAL for :ENAME ||' increased by 19.');
- C. apex_automation.log_info ('SAL for ' || :ENAME || ' increased by 19.');
Answer: C
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 # 21
What happens when you regenerate credentials for Push Notifications in Oracle APEX?
- A. Push Notifications will be disabled for the application.
- B. Existing Push Subscriptions for the application will be invalidated.
- C. A new notification server must be created.
Answer: B
Explanation:
Regenerating Push Notification credentials updates the VAPID keys (public/private pair) in the PWA settings:
A . Existing Push Subscriptions invalidated: Subscriptions (in APEX_APPL_PUSH_SUBSCRIPTIONS) are tied to the old keys. New keys break this link, requiring users to re-subscribe (e.g., via browser prompts), as the push service (e.g., Firebase) can't authenticate old subscriptions.
B . New notification server: False; the server configuration remains; only credentials change.
C . Disabled for the app: False; notifications remain enabled but won't work for old subscriptions until re-established.
Technical Insight: Regeneration updates APEX_PWA_VAPID_PUBLIC_KEY and APEX_PWA_VAPID_PRIVATE_KEY, triggering a subscription refresh cycle.
Use Case: Security breach requires key rotation.
Pitfall: Users must re-opt-in, potentially losing some subscribers.
NEW QUESTION # 22
Which two actions does the Create Application Wizard allow?
- A. Reordering application pages.
- B. Changing the application authorization.
- C. Adding or deleting application pages.
- D. Uploading JavaScript or CSS files required for an application.
Answer: A,C
Explanation:
The Create Application Wizard streamlines app creation with:
Adding or deleting application pages: Allows users to define initial pages (e.g., Home, Reports) and remove unwanted ones during the wizard process.
Reordering application pages: Provides drag-and-drop or list-based reordering of pages to set the navigation sequence.
Uploading JavaScript or CSS: This occurs post-creation in Shared Components, not within the wizard.
Changing the application authorization: Authorization schemes are set after creation, not during the wizard.
This wizard is a time-saver for rapid prototyping, offering a guided yet flexible setup.
NEW QUESTION # 23
You have an Interactive Grid component and you are enabling the Save Report functionality. As what can end users save the report type?
- A. As Primary
- B. As Private and Primary only
- C. As Private and Public only
Answer: C
Explanation:
In an Interactive Grid, the "Save Report" functionality allows end users to save customizations (e.g., filters, column order). The available options are:
Private: Saved for the individual user only, visible only to them.
Public: Saved and shared with all users of the application, if permitted by the developer.
Primary: This is a developer-defined default report, not an end-user save option. End users cannot overwrite the Primary report; they can only save as Private or Public (if enabled via the "Allow Public Reports" attribute).
This flexibility empowers users to personalize grids while allowing shared configurations, enhancing collaboration and usability.
NEW QUESTION # 24
An APEX e-commerce application is being used by 50 users. You have a promotional offer, and you need to send a push notification to all the subscribed users on their devices. Which step must be performed in Oracle APEX to achieve this?
- A. Create a REST Data Source to send push notifications to all the subscribed users.
- B. Create a PL/SQL block to fetch all the subscribed users and send push notifications by using APEX_APPL_PUSH_SUBSCRIPTIONS & APEX_PWA.SEND.
- C. Enable push notifications at the application level and let APEX handle the subscription and delivery process automatically.
- D. Create a Dynamic Action of Send Push Notification type to send push notifications to all the subscribed users.
Answer: B
Explanation:
To send push notifications to all subscribed users, you must:
Enable push notifications at the application level (a prerequisite).
Use a PL/SQL block with APEX_APPL_PUSH_SUBSCRIPTIONS to fetch subscribers and APEX_PWA.SEND to send the notifications.
Option A is incorrect as there's no "Send Push Notification" Dynamic Action type. Option B is incomplete as enabling alone doesn't send notifications. Option C is unrelated to push notifications.
NEW QUESTION # 25
Which is NOT an available Geometry Column data type for the map region?
- A. GeoJSON
- B. Latitude/Longitude
- C. JSON OBJECT
- D. SDO_GEOMETRY
Answer: C
Explanation:
The Map Region in APEX supports spatial data via:
GeoJSON: A JSON-based standard for geographic data (e.g., points, polygons).
SDO_GEOMETRY: Oracle's native spatial data type for storing geometry (e.g., SDO_GEOMETRY(2001, 4326, SDO_POINT_TYPE(-122, 37, NULL), NULL, NULL)).
Latitude/Longitude: Separate columns for lat/long coordinates, mapped to points.
JSON OBJECT: Not a supported geometry type; while JSON can store data, it's not a specific spatial format recognized by the Map Region without GeoJSON structure.
This ensures compatibility with Oracle Spatial and common GIS standards.
NEW QUESTION # 26
Which two Plugin types can be created in Oracle APEX?
- A. Validation
- B. Email Template
- C. Region
- D. Process
Answer: C,D
Explanation:
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.
NEW QUESTION # 27
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?
- A. Navigate to each facet and then in the Property Editor, turn on Client-Side Filtering.
- B. Navigate to the faceted search region Attributes, and turn off the Show Facet Name attribute.
- C. Navigate to the faceted search region Attributes, and disable the Batch Facet Changes attribute.
Answer: C
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 # 28
Which two tasks can be performed by the APEX Assistant when you create an application using the "Create App using Generative AI" option?
- A. Update the App icon with a custom image.
- B. Add a Dashboard page.
- C. Create the application blueprint.
- D. Create a Generative AI service.
Answer: B,C
Explanation:
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.
NEW QUESTION # 29
How many instances of a Workflow can exist in the "In Development" state?
- A. 0
- B. Unlimited
- C. 1
Answer: A
Explanation:
In Oracle APEX Workflow, only one instance of a workflow can exist in the "In Development" state at a time. This ensures that developers work on a single draft version before publishing it. Multiple instances are allowed in other states (e.g., "Published"), but not during development.
NEW QUESTION # 30
What do you achieve by performing the "Refresh Working Copy" task?
- A. Update the changes from one Working Copy to another.
- B. Get the latest updates from the Main application.
- C. Merge the Working Copy changes with the Main application.
Answer: B
Explanation:
Working Copies in APEX allow safe experimentation:
C . Get the latest updates from the Main application: "Refresh Working Copy" (in App Builder > Working Copies) pulls changes from the Main application into the Working Copy, ensuring it reflects the latest state (e.g., new pages, fixes) without overwriting Working Copy changes.
A . Merge with Main: Merging is a separate "Merge Working Copy" task.
B . Update between Working Copies: Not supported; refreshing is Main-to-Working only.
Practical note: Use this to sync collaborative development efforts.
NEW QUESTION # 31
Which Process type do you use to run multiple processes in the background in APEX?
- A. Execution Chain
- B. Execute Server-side Code
- C. Execute JavaScript Code
- D. Execute Code
Answer: A
Explanation:
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.
C . Execute JavaScript Code: Client-side, not suited for background server processes.
Use case: Chain processes like data validation, logging, and email sending without blocking the UI.
NEW QUESTION # 32
At what level does a developer enable push notifications so that end users can receive them on their devices from an APEX application?
- A. Region
- B. Page
- C. Instance
- D. Application
Answer: D
Explanation:
Push notifications in Oracle APEX are enabled at the application level. This allows the application to register with the Progressive Web App (PWA) framework and manage subscriptions for all end users. Once enabled in the Application Definition under "Progressive Web App" settings, APEX handles the subscription process, and developers can use APIs like APEX_PWA.SEND to send notifications. Enabling at the region, page, or instance level is not supported for this feature.
NEW QUESTION # 33
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?
- A. Navigate to each facet and then in the Property Editor, turn on Client-Side Filtering.
- B. Navigate to the faceted search region Attributes, and turn off the Show Facet Name attribute.
- C. Navigate to the faceted search region Attributes, and disable the Batch Facet Changes attribute.
Answer: C
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 # 34
Which two statements are true about the APEX_MAIL API?
- A. You can send emails using the APEX_MAIL package from an Oracle APEX application.
- B. You can add files as attachments to your emails using the APEX_MAIL package.
- C. You can receive emails using the APEX_MAIL package in an Oracle APEX application.
- D. The APEX_MAIL package supports sending emails only to Oracle database users.
Answer: A,B
Explanation:
The APEX_MAIL API facilitates email functionality:
A . You can add files as attachments: Using APEX_MAIL.ADD_ATTACHMENT (e.g., APEX_MAIL.ADD_ATTACHMENT(p_mail_id, p_attachment, p_filename)), you can attach BLOBs (e.g., PDFs) to emails.
C . You can send emails: APEX_MAIL.SEND (e.g., APEX_MAIL.SEND(p_to => '[email protected]', p_body => 'Hello')) sends emails from APEX, leveraging the configured mail server.
B . You can receive emails: False; APEX_MAIL is send-only; receiving requires custom integration (e.g., IMAP).
D . Only to Oracle database users: False; emails can go to any valid address, not just database users.
Pitfall: Ensure the mail queue is processed (APEX_MAIL.PUSH_QUEUE) for timely delivery.
NEW QUESTION # 35
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