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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q160-Q165):

NEW QUESTION # 160
A page throws an 'Attempt to dereference a null object' error for a Contact.
What change in the controller will fix the error?

Answer: B

Explanation:
The error 'Attempt to dereference a null object' often occurs when trying to access a member of a null object. By checking if the object is null in the getter method and returning a new instance if it is, the error can be prevented.
Apex Developer Guide


NEW QUESTION # 161
An org has an existing process, built using Process Builder, on Opportunity that sets a custom field, CommissionBaseAmount__c, when an Opportunity is edited and the Opportunity's Amount changes.
A developer recently deployed an Opportunity before update trigger that uses the CommissionBaseAmount__c and complex logic to calculate a value for a custom field, CommissionAmount__c, when an Opportunity stage changes to Closed/Won.
Users report that when they change the Opportunity to Closed/Won and also change the Amount during the same save, the CommissionAmount__c is incorrect.
Which action should the developer take to correct this problem?

Answer: B

Explanation:
The issue described is likely due to the order of execution in Salesforce, where processes in Process Builder run after all before triggers. If the Opportunity's Amount is changed and the CommissionBaseAmount__c is set by Process Builder, the trigger that calculates CommissionAmount__c may not see the updated value if it operates before the process.
Replacing the process with a before-save record-triggered flow (formerly known as Fast Field Update) would ensure that CommissionBaseAmount__c is updated before the trigger runs. In a before-save flow, field updates occur before any Apex before update triggers fire, which means the trigger would have the updated value of CommissionBaseAmount__c to use in its calculation.
eferences:
Order of Execution in Salesforce
Before-Save Record-Triggered Flows


NEW QUESTION # 162
A developer sees test failures in the sandbox but not in production. No code or metadata changes have been actively made to either environment since the sandbox was created.
Which consideration should be checked to resolve the issue?

Answer: C

Explanation:
If test failures are occurring in a sandbox but not in production and there have been no active code or metadata changes, it could be due to differences in the Salesforce release versions between the two environments. Sandboxes can be on preview instances which get upgraded to new releases before production instances. This can lead to differences in behavior and could affect test executions. Ensuring that both the sandbox and production are on the same release can resolve such issues. API version differences and parallel testing settings typically do not cause discrepancies if the code hasn't changed, and while using SeeAllData=true is generally not recommended due to its dependence on the organization's data, it's unlikely to be the cause if the issue is related to the environment rather than the data.
Sandbox Preview Instructions
Understand the Salesforce Release Process


NEW QUESTION # 163
When the code is executed, the callout is unsuccessful and the following error appears within the Developer Console:
System.CalloutException: Unauthorized endpoint
Which recommended approach should the developer implement
to resolve the callout exception?

Answer: C

Explanation:
The System.CalloutException with the message "Unauthorized endpoint" typically indicates that the endpoint to which the callout is being made has not been authorized in the Salesforce org's security settings. To resolve this, the developer must navigate to the Remote Site Settings in the Salesforce Setup and add the endpoint URL as a new remote site. This step is necessary to authorize the Salesforce org to send outbound callouts to that specific endpoint. Annotating with @Future(Callout=true) is necessary for making callouts from methods that perform DML operations, but it does not resolve endpoint authorization issues. Similarly, changing the access modifier or using SetHeader() for authentication would not address the unauthorized endpoint error.
Remote Site Settings
Apex Developer Guide: Making Callouts Using Apex


NEW QUESTION # 164
A company's support process dictates that any time a case is closed with a status of "Could net fix," an Engineering Review custom object record should be created and populated with information from the case, the contact, and any of the products associated with the case.
What Is the correct way to automate this using an Apex trigger?

Answer: A

Explanation:
In Salesforce, triggers can be defined to execute before or after a DML operation. An "after" trigger is used when you want to use the records that have been changed and rely on their committed values. In this scenario, you would use an after update trigger because you need to create a new record (Engineering Review) after the case has been updated with a status of "Could not fix". This cannot be done in a "before" trigger because the changes have not yet been committed to the database.
Therefore, the correct answer is A, which specifies an after update trigger on the Case object to create and insert the Engineering Review record.
Salesforce Developer Documentation on Triggers: Apex Developer Guide - Triggers


NEW QUESTION # 165
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