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使用1Z0-771软件版 -擺脫Oracle APEX Cloud Developer Professional考試苦惱
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Oracle 1Z0-771 考試大綱:
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1Z0-771考古題更新 & 1Z0-771證照指南
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最新的 Application Development 1Z0-771 免費考試真題 (Q19-Q24):
問題 #19
Which statement is true about importing an existing application into your workspace?
- A. You cannot change the application ID during the import process.
- B. You cannot import an APEX application exported from the latest APEX version to an old APEX version.
- C. The import process does not import the supporting objects defined during the export.
答案:B
解題說明:
Importing an APEX application involves transferring its definition (exported as a .sql file):
C . You cannot import an APEX application exported from the latest APEX version to an old APEX version: APEX enforces backward compatibility limits. An app exported from 23.2 (latest features like AI Assistants) can't import into 19.2, as older versions lack support for newer metadata (e.g., APEX_AI tables). The import wizard checks the version and rejects incompatible files.
A . You cannot change the application ID: False; the import wizard prompts for a new ID if there's a conflict or if you choose to override.
B . Supporting objects not imported: False; if included in the export (via "Include Supporting Objects"), they're imported (e.g., tables, triggers), unless skipped explicitly.
Technical Insight: Export files contain a version check (e.g., apex_version := '23.2';), causing rejection if the target instance's APEX_VERSION is lower.
Use Case: Moving an app from a dev instance (23.2) to prod (23.2) works, but not to an outdated test instance (19.1).
Pitfall: Always match versions or upgrade the target instance first.
問題 #20
Which two statements are true about Oracle APEX?
- A. You can build interactive reporting apps based on data from disparate systems.
- B. Running an APEX app needs client software.
- C. APEX eliminates middle tier application logic.
- D. Application definition is not stored in the database.
答案:A,C
解題說明:
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.
問題 #21
What do you achieve by performing the "Refresh Working Copy" task?
- A. Update the changes from one Working Copy to another.
- B. Merge the Working Copy changes with the Main application.
- C. Get the latest updates from the Main application.
答案:C
解題說明:
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.
問題 #22
You must create a single master detail page where users can select a row in the master region and see the corresponding details in the detail region. Users must also interact with the master or the detail without leaving the page. Which type of master detail implementation should you use?
- A. Side by Side
- B. Drill Down
- C. Stacked
答案:A
解題說明:
Master-detail pages in APEX link a master dataset (e.g., list of orders) to its details (e.g., order items). The requirements demand:
C . Side by Side: This layout places the master region (e.g., an Interactive Report) and detail region (e.g., a Form or Grid) horizontally on the same page. Selecting a master row updates the detail region via AJAX, allowing interaction with both regions without navigation. It's ideal for workflows needing simultaneous visibility (e.g., editing details while browsing masters).
A . Drill Down: Master links to a separate detail page, requiring navigation, which violates the "without leaving the page" condition.
B . Stacked: Master and detail are vertically stacked, but interaction is less fluid than side-by-side due to scrolling, though still on one page. Side-by-side is preferred for its clarity and accessibility.
Pitfall: Ensure the detail region's "Server-side Condition" uses the master's selected key (e.g., P1_ID).
問題 #23
What happens when you regenerate credentials for Push Notifications in Oracle APEX?
- A. A new notification server must be created.
- B. Push Notifications will be disabled for the application.
- C. Existing Push Subscriptions for the application will be invalidated.
答案:C
問題 #24
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