Salesforce Plat-Dev-301 : Salesforce Certified Platform Developer II - Multiple Choice

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:

1. A developer is building a complex commission calculation engine in Apex that is called from an Opportunity trigger. During QA it was reported that the calculations are incorrect.
The developer has representative test data and passing test methods in their developer sandbox.
Which three tools or techniques could the developer use to execute the code and pause it at key lines to visually inspect values of various Apex variables?
Choose 3 answers

A) Developer Console
B) Apex Interactive Debugger
C) Workbench
D) Apex Replay Debugger
E) Breakpoints

2. 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?

A) A Replace the process with a Fast Field Update record-trigger flow.
B) Call the process from the trigger.
C) Call the trigger from the process.

3. Part of a custom Lightning component displays the total number of Opportunities in the org, which are in the millions. The Lightning component uses an Apex method to get the data it needs.
What is the optimal way for a developer to get the total number of Opportunities for the Lightning component?

A) Apex batch job that counts the number of Opportunity records
B) SOQL for loop that counts the number of Opportunities records
C) SUM () SOQL aggregate query on the Opportunity object
D) COUNT () SOQL aggregate query on the Opportunity object

4. 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?

A) Ensure that Disable Parallel Apex Testing Is unchecked.
B) Ensure test classes are using SeeAllData = true.
C) Ensure the Apex classes are on the same API version.
D) Ensure the sandbox Is on the same release as production.

5. A developer created a Lightning web component that uses a lightning-record-edit-form to collect information about Leads. Users complain that they only see one error message at a time about their input when trying to save a Lead record.
What is the recommended approach to perform validations on more than one field, and display multiple error messages simultaneously with minimal JavaScript intervention?

A) External JavaScript library
B) Apex trigger
C) Validation rules
D) Try/catch/finally block

Solutions: