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Correct : A

As a general rule, you cannot import an application created in a newer release of APEX into an earlier version. This is because the newer release may have features or attributes that are not supported or recognized by the older version. For example, you cannot import an application created in APEX 21.2 into APEX 19.2. However, you can import an application created in an older release into a newer one, as long as the application is compatible with the newer release.For example, you can import an application created in APEX 18.2 into APEX 21.2, but you may need to upgrade or modify some components to use the latest features.

Correct : C

In an Employee form, the 'Commission' and 'Hire Date' fields are enabled only if the Job is 'Salesman'. This can be achieved by using Dynamic Actions in APEX. Dynamic Actions are declarative components that define client-side behavior without writing JavaScript code. You can create Dynamic Actions on items, buttons, or regions of a page by specifying an event, a condition, an action, and other properties. In this scenario, you can create a Dynamic Action on Job item with Change as event, Execute JavaScript Code as action, and use jQuery to enable or disable Commission and Hire Date fields based on Job value. Processing, Conditional SQL, and PL/SQL procedure are not features of APEX that can achieve this requirement without writing JavaScript code.

Correct : A, C

The Column Heading menu of an Interactive Report provides various options to customize the report based on the selected column. The options include:

Control Break: This option allows you to create a control break on the column, which groups the rows by the column values and inserts a header and a footer for each group. You can also apply aggregate functions, such as sum, count, or average, to the footer of each group.

Hide: This option allows you to hide the column from the report, which reduces the clutter and improves the readability of the report. You can also show the hidden columns by using the Columns option in the Actions menu.

The other options are incorrect because:

Group By: This option is not provided in the Column Heading menu of an Interactive Report. It is provided in the Actions menu of an Interactive Report. It allows you to group the rows by one or more columns and display the result in a chart or a pivot table.

Delete: This option is not provided in the Column Heading menu of an Interactive Report. It is provided in the Data option in the Actions menu of an Interactive Report. It allows you to delete one or more rows from the report and the underlying table.

Verified References: [Customizing Interactive Reports] [Column Heading Menu]

Correct : A, B, D

Shared components are common elements that can be displayed or applied on any page within an application. Once you create a shared component, you can add them to any page within your APEX application.However, shared components are specific to each application and workspace, so you cannot add them to any page in any workspace4.Breadcrumbs, lists, and navigation bar entries are examples of shared components that can be used for navigation purposes4.

Correct : B

Session state management is a feature that enables developers to store and retrieve values for a user as the user navigates between different application pages. A session is a logical construct that establishes persistence (or stateful behavior) across page views. Each session is assigned a unique identifier (or session ID). The statement that is true about session state management in Oracle APEX is:

APEX Sessions are logically and physically distinct from Oracle database sessions used to service page requests. APEX Sessions are stored in memory within an Application Express engine process while Oracle database sessions are stored in memory within an Oracle database process. The other statements are false because:

A user can run multiple instances of an application simultaneously in different browser programs by using different session IDs.

Multiple number of sessions can exist in the database at the same time for different users or applications. Verified References: [Understanding Session State Management - Oracle Help Center], [What Is a Session? - Oracle Help Center]