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Salesforce Plat-Dev-301 Exam : Salesforce Certified Platform Developer II - Multiple Choice
- Exam Code: Plat-Dev-301
- Exam Name: Salesforce Certified Platform Developer II - Multiple Choice
- Updated: Oct 12, 2026
- Q & A: 204 Questions and Answers
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Salesforce Plat-Dev-301 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Integration and APIs | - External system integration
|
| Application Development | - Asynchronous processing
|
| Data Modeling and Management | - Data access and security
|
| Testing and Deployment | - Testing strategies
|
Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:
Question #1
When developing a Lightning web component, which setting displays lightninglayout-items im one column on small devices, such as mobile phones, and in two columns on tablet-size and desktop-size screens?
- A. Set size="12" medium-device-size="6"
- B. Set size="12" tablet-device-size="6"
- C. Set size="6" small-device-size="12"
- D. Set size="6" mobile-device-size="12"
Correct Answer: A 🗳️
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Question #2
There are user complaints about slow render times of a custom data table within a Visualforce page that loads thousands of Account records at once.
What can a developer do to help alleviate such issues?
- A. Use the transient keyword in the Apex code when querying the Account records.
- B. Upload a third-party data table library as a static resource.
- C. Use the standard Account List controller and implement pagination.
- D. Use JavaScript remoting to query the accounts.
Correct Answer: C 🗳️
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Question #3
Exhibit:
The test method above tests in Apex trigger that the developer knows will make a lot of queries when a lot of Accounts are simultaneously updated to be customers. The test method fails at the Line 20 because of too many SOQL queries. What is the correct way to fix this?
- A. Add Test.startTest() before Line 18 of the code and add Test.stopTest() after line 18 of the code
- B. Replace most of the Apex Trigger with Process Builder processes to reduce the number of queries in the trigger
- C. Change the DataFactory class to create fewer Accounts so that the number of queries in the trigger is reduced
- D. Add Test.startTest() before and Test.stopTest() after both Line 7 of the code and Line 20 of the code
Correct Answer: A 🗳️
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Question #4
Recently, users notice that fields that were recently added for one department suddenly disappear without warning.
Which two statements are true regarding these issues and resolution?
Choose 2 answers
- A. The administrators are deploying their own Change Sets over each other, thus replacing entire Page Layouts in production.
- B. The administrators are deploying their own Change Sets, thus deleting each other's fields from the objects in production.
- C. A sandbox should be created to use as a unified testing environment instead of deploying Change Sets directly to production.
- D. Page Layouts should never be deployed via Change Sets, as this causes Field-Level Security to be reset and fields to disappear.
Correct Answer: A,C 🗳️
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Question #5
A company has a native iOS order placement app that needs to connect to Salesforce to retrieve consolidated information from many different objects in a JSON format.
Which is the optimal method to implement this in Salesforce?
- A. Apex SOAP callout
- B. Apex REST callout
- C. Apex SOAP web service
- D. Apex REST web service
Correct Answer: D 🗳️
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