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No.# The correct answe is Band C

No.# The correct answers are C and D

No.# The correct answer is B,D and E

No.# A is correct because after inserting child Cases the after insert trigger is fired again for them, infinitely

No.# The right answer is A & C

No.# @Ae B and C are correct
https://help.salesforce.com/s/articleView?id=platform.code_dev_console_tab_checkpoints.htm&type=5

No.# B - Total number of SOSL queries issued 20

No.# The correct answers are:

B. Displaying the last four digits of an encrypted Social Security number
D. Displaying an Image based on the Opportunity Amount

No.# B. Junction object between Applicant and Job

No.# B is good

No.# C & D are correct

C. Time

D. Exception

No.# B and C

No.# D. Child case is created for each parent case in Trigger.new.

This means that for every new Case inserted (each entry in Trigger.new), a corresponding child Case is created and inserted with the same Subject and the ParentId set to the parent’s Id.

No.# . Implement pagination with a StandardSetController.

Here’s why:

1. StandardSetController: This controller is specifically designed to handle pagination in Visualforce pages. It helps in managing large sets of records efficiently by fetching only a subset of records at a time, thus reducing the view state size.
2. View State Limits: The view state limit issue arises because the Visualforce page is trying to handle too much data at once. By implementing pagination, only a small subset of data is loaded and stored in the view state at any given time, which helps in staying within the view state limits.

No.# B. Handle low-level events in the event handler and re-fire them as higher-level events.

This practice allows for better abstraction and modularization of code. By handling low-level events first and then firing higher-level events, you can create a more organized and manageable event architecture.

D. Reuse the event logic in a component bundle, by putting the logic in the helper.

This promotes the reuse of code and ensures that event handling logic is consistent and maintainable. By placing reusable logic in the helper, you can keep your components clean and focused on their primary responsibilities while sharing common functionality across different parts of your application.

No.# In the Salesforce Lightning Component framework, there are two phases for application event propagation: **Default** and **Bubble**. Therefore, the correct answers are:

B. Default

C. Bubble

### Explanation:

1. **Default Phase**:
- This is the initial phase where the event is handled by the components that directly registered an event handler for the specific event type. Handlers that are registered in the default phase get the first opportunity to handle the event.

2. **Bubble Phase**:
- After the default phase, the event enters the bubble phase. In this phase, the event starts at the source component and bubbles up through the component hierarchy. This allows parent components to handle the event, providing an opportunity for higher-level components to respond.

These phases allow for a structured and manageable way to propagate events and handle them appropriately within the component hierarchy.

So, the correct choices are:
B. Default
C. Bubble

No.# D. myFooController m = new myFooController();System.assert(m.prop ==null);

Here’s the reasoning:

The class myFooController is defined with a public integer property prop that has a getter but a private setter. This means that the prop property can only be modified within the class and not outside of it.

When a new instance of myFooController is created, prop is not initialized to any value explicitly within the constructor (assuming the default constructor is used since none is defined in the provided code). In Salesforce Apex, uninitialized primitive properties (including Integer) default to null. Therefore, immediately after creating a new instance of myFooController, the value of prop will be null.

Hence, the assertion System.assert(m.prop == null); will be true, making option D correct.

No.# B. ApexPages.CurrentPage().getParameters().put(‘input’, ‘TestValue’);

• This statement is useful for setting parameters on the current page, which simulates the passing of parameters from the initial URL to the controller. This is essential for testing how the controller handles input data that is passed via URL parameters.

D. String nextPage = controller.save().getUrl();

• This statement is useful for simulating the save action and capturing the resulting URL. This allows you to verify that the controller’s save method is functioning correctly and that it redirects to the expected page.

E. Test.setCurrentPage(pageRef);

• This statement sets the context to a specific Visualforce page reference. It’s essential for simulating different stages of the Visualforce Wizard and ensuring that the controller behaves correctly when different pages are loaded.

No.# C. Use the onChange event to update the list of accounts in the controller when the value changes, and then re-render the pageBlockTable.

Explanation:

1. onChange Event: This event can be used to detect when the selected value in the <apex:selectList> component changes.
2. Controller Update: When the onChange event is triggered, it can call an action method in the custom controller to filter the list of accounts based on the selected type.
3. Re-rendering: After the controller updates the list, re-rendering the <apex:pageBlockTable> component ensures that the UI reflects the updated list of accounts.