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1Z0-770 Latest Dumps: Oracle APEX Developer Professional & Oracle APEX Developer Professional Exam Cram

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Oracle APEX Developer Professional Sample Questions (Q16-Q21):

NEW QUESTION # 16
Which three of the following statements are TRUE about Data Synchronization?

A. Data Synchronization enables developers to automatically sync the contents of a local table with the data from a REST service.
B. You must trigger Data Synchronization manually
C. APEX can create the local table based on the visible columns in the REST Data Source Data Profile.
D. Helps in Providing efficient reporting on large data sets coming from a REST service

Answer: A,C,D

Explanation:
Explanation
Data Synchronization enables developers to automatically sync the contents of a local table with the data from a REST service. APEX invokes the REST service defined in the REST Data Source, downloads all data and synchronizes it to a local table6. Data Synchronization has several benefits, such as:
APEX can create the local table based on the visible columns in the REST Data Source Data Profile. Since the table is physically available in the database schema, developers can add indexes, change physical properties, or even add more columns6.
Data Synchronization helps in providing efficient reporting on large data sets coming from a REST service. Some REST services can return large amounts of result data that include pagination. If a reporting requirement needs larger data sets, this would lead to multiple HTTP requests and poorer response times. Also, no indexes or other database features can be used to speed up reporting queries. In this case, synchronizing the remote data to a local table and having the reports working on local tables can improve performance and user experience6.
Data Synchronization can also collect data from REST services for consumption by PL/SQL packages or other logic. If data from the REST service is replicated to local tables, developers will be able to perform all sorts of processing and also generate different types of reports6.
You do not have to trigger Data Synchronization manually, as you can also schedule it to run periodically using a DBMS_SCHEDULER expression6.

NEW QUESTION # 17
Examine this code entered in Quick SQL:
emp_salary
name vc255
salary num
commission yn/check TRUE, FALSE
Which statement is true about the commission yn column?

A. It will default to FALSE.
B. It will restrict acceptable values to Y or N.
C. It will restrict acceptable values to TRUE or FALSE.
D. It will default to TRUE.

Answer: C

Explanation:
Explanation
The commission yn column will restrict acceptable values to TRUE or FALSE because of the /check modifier in the column name. This modifier adds a check constraint to the column based on the values specified after it.
The yn suffix indicates that the column is of type VARCHAR2(1). The other options are incorrect because they do not reflect the effect of the /check modifier or the yn suffix. Verified References: Using Quick SQLAbout Quick SQL Shorthand Syntax

NEW QUESTION # 18
Plug-ins can be used declaratively in which of the following components in APEX?

A. Items
B. All of them
C. Dynamic Actions
D. Process Type
E. Regions

Answer: B

Explanation:
Explanation
Plug-ins can be used declaratively in all of the following components in APEX: Dynamic Actions, Regions, Items, Process Type, and Authentication and Authorization Schemes. Plug-ins are shared components that enable developers to extend the native functionality of APEX with custom components1. Plug-ins can be created or imported from the Shared Components page or the App Gallery1.

NEW QUESTION # 19
Which statement is true about Unified Task List in the Approvals component?

A. It is a shared component used to configure task parameters, participants, actions, and due dates.
B. It is a page that shows details for a specific task, which can include metadata, history, comments, and actions.
C. It is a page type in the Create Page Wizard that is used to create a summary of tasks that functions like an inbox.

Answer: C

Explanation:
Explanation
The Approvals component in Oracle APEX is a feature that allows developers to create approval workflows for business processes that require human intervention or decision making. The Approvals component consists of three main elements: Tasks, Task List Page, and Task Details Page. The Unified Task List is a page type in the Create Page Wizard that is used to create a summary of tasks that functions like an inbox for end users.
The Unified Task List displays all tasks assigned to or created by an end user along with their status, priority, due date, etc. End users can filter, sort, search, view details, and perform actions on tasks from this page.
Verified References: [Using Approvals - Oracle Help Center], [Creating a Unified Task List Page - Oracle Help Center]

NEW QUESTION # 20
When you click a Customer Name in the Customers report, the Customer Details form dialog page is displayed. What are the events that occur in this scenario?

A. Page Processing
B. Page compilation
C. Page rendering and processing
D. Page Rendering

Answer: C

Explanation:
Explanation
When you click a Customer Name in the Customers report, the Customer Details form dialog page is displayed. This involves two events: page rendering and page processing. Page rendering is the event that occurs when APEX generates and sends the page to the browser. Page processing is the event that occurs when APEX receives and processes the page from the browser. In this scenario, both events happen because the Customer Details form dialog page is a modal dialog that uses AJAX to communicate with the server without reloading the entire page. Page compilation is not an event, but an action that occurs when APEX compiles an application or a page before running it.

NEW QUESTION # 21
......

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