Online Access Free Salesforce.PDII.v2022-07-06.q118 Practice Test (Page 8)

PDII Exam Question 31

A developer encounters an error that states that the Apex heap size is exceeded. Which technique may reduce heap size?

A.Use SOQL for loops instead of standard SOQL queries

B.Add the transient keyword to the variable definition

C.Use static variables instead of instance variables

D.Move the variable definition inside the scope of the function

PDII Exam Question 32

The use of the transient keyword In Visualforce Page Controllers helps with which common performance issued?

A.Improves Page Transfers

B.Reduces Load Times

C.Improves Query Performance

D.Reduces View State

PDII Exam Question 33

Part of a custom Lightning Component displays the total number of Opportunities in the org, which is in the millions. The Lightning Component uses an Apex Controller 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.COUNT() SOQL aggregate query on the Opportunity object

D.SUM() SOQL aggregate query on the Opportunity object

PDII Exam Question 34

Refer to the markup below:
A Lightning web component displays the Account name and two custom fields out of 275 that exist on the object. The developer receives complaints that the component performs slowly.
What can the developer do to improve the performance?
A)