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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:

Question 1

After a platform event is defined in a Salesforce org,events can be published via which mechanism?

A. Internal Apps can use entitlement processes.
B. External Apps use an API Co publish event messages.
C. External Apps require the standard Streaming API.
D. Internal Apps can use outbound messages.

Question 2

Refer to the markup below:

A Lightning web component displays the Account name and two custom fields out of 275 that exist on the abject. The custom fields are correctly declared and populated. However, the developer receives complaints that the component performs slowly. What can the developer do to improve the performance?

A. Add cache="true" to the component.
B. Replace Layout-type =''Full1" with Layout-type="Partial".
C. Add density="compat" to the component.
D. Replace layout-type =''1" with fields=(fields}.

Question 3

Consider the following code snippet:

The Apex method is executed in an environment with a large data volume count for Accounts, and the query is performing poorly. Which technique should the developer implement to ensure the query performs optimally, while preserving the entire result set?

A. Annotate the method with the @Future annotation
B. Use the Database queryLocator method to retrieve the accounts.
C. Break down the query into two individual queries and join the two result sets.
D. Create a formula field to combine the createdDate and RecordType value, then filter based on the formula.

Question 4

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. Replace most of the Apex Trigger with Process Builder processes to reduce the number of queries in the trigger
B. Add Test.startTest() before and Test.stopTest() after both Line 7 of the code and Line 20 of the code
C. Add Test.startTest() before Line 18 of the code and add Test.stopTest() after line 18 of the code
D. Change the DataFactory class to create fewer Accounts so that the number of queries in the trigger is reduced

Question 5

A developer is creating a Lightning web component that displays a list of records in a lightning-datatable. After saving a new record to the database, the list is not updating.

What should the developer change in the code above for this to happen?

A. Create a variable to store the result and call refreshpex().
B. Add the @track decorator to the data variable.
C. Call rafrasnApex() ON this.dazta.
D. Create a new variable to store the result and annotate it with @track.

Solutions: