PDII Practice Exam - Mock PDII Exams

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Quiz PDII - Newest Platform Developer II Practice Exam

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Salesforce Platform Developer II Sample Questions (Q48-Q53):

NEW QUESTION # 48
A developer is working with existing functionality that tracks how many times a stage has changed for an Opportunity. When the Opportunity's stage is changed, a workflow rule is fired to increase the value of a field by one. The developer wrote an after trigger to create a child record when the field changes from 4 to 5. A user changes the stage of an Opportunity and manually sets the count field to 4. The count field updates to 5, but the child record is not created. What is the reason this is happening?

Answer: D

Explanation:
12
The issue described is rooted in the Salesforce Order of Execution. When a record is saved, Salesforce follows a very specific sequence of events. First, original triggers (before and after) are executed. Only after these triggers have completed does the system evaluate and execute workflow rules.34 In this scenario, th5e following happens:6
* The user saves the Opportunity with the count set to 4.7
* The After Trigger fires. At this point, the field value i8s still 4. Since the trigger logic only creates a child record when the value "changes from 4 to 5," and it is currently exactly 4 (not yet 5), the condition is not met.
* Next, the Workflow Rule fires and performs a field update, changing the count from 4 to 5.
* According to the platform rules, a workflow field update causes Before and After Triggers to fire one more time to account for the change. However, in this second execution of the after trigger, Trigger.old now contains the value 4 (from the start of the second execution) and Trigger.new contains 5. While the condition old == 4 and new == 5 is now technically true, many developers fail to realize that the first execution (before the workflow) already bypassed the logic because the workflow hadn't updated the value yet.
If the trigger was written to look for the exact transition, it might fail during the first pass (where the value is
4) and potentially execute during the second pass. However, if the logic is not specifically handled to account for the re-entrant nature of workflow field updates, or if the "After triggers fire before workflow rules" (Option A) is the primary constraint being tested, it explains why the initial save logic didn't see the "5" until it was too late in the initial trigger context.


NEW QUESTION # 49
A developer is working with existing functionality that tracks how many times a stage has changed for an Opportunity. When the Opportunity's stage is changed, a workflow rule is fired to increase the value of a field by one. The developer wrote an after trigger to create a child record when the field changes from 4 to 5.
A user changes the stage of an Opportunity and manually sets the count field to 4. The count field updates to 5, but the child record is not created.
What is the reason this is happening?

Answer: D

Explanation:
The reason this is happening is that Trigger.old does not contain the updated value of the count field. Trigger.old is a list of the old versions of the sObject records, before any changes were made in the trigger. Trigger.new is a list of the new versions of the sObject records, after any changes were made in the trigger. In this case, the workflow rule is fired after the trigger, and updates the count field from 4 to 5. However, the trigger does not see this change, as it only compares the values in Trigger.old and Trigger.new, which are both 4. To fix this, the developer should use an after update trigger, and re-query the updated records to get the latest values of the count field. After triggers fire before workflow rules is incorrect, as workflow rules fire after triggers. Trigger.new does not change after a field update is incorrect, as Trigger.new does change after a field update, but only within the same trigger context. After triggers are not fired after field updates is incorrect, as after triggers are fired after field updates, unless the field updates are made by a workflow rule or a process. Reference: [Triggers and Order of Execution], [Trigger Context Variables], [Apex Developer Guide]


NEW QUESTION # 50
An Apex trigger and Apex class increment a counter, Edit __C, any time the Case is changed.

Answer: A


NEW QUESTION # 51
How can a developer efficiently incorporate multiple JavaScript libraries, such as JQuery and MomentJS, in a Lightning component?

Answer: A


NEW QUESTION # 52
A company has a custom object, Sales Demo Request, that has a lookup to an Opportunity. It is required that a Sales Demo Request record be created when an Opportunity's Probability is greater than 50%.
What is the optimal way to automate this?

Answer: C

Explanation:
Explanation/Reference:


NEW QUESTION # 53
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