Platform-Developer-II Salesforce Exam Questions and Free Practice Test

Question 67

- (Exam Topic 1)
Universal Containers has a Visualforce page that displays a table every Container_ c being rented by a gives Account.. failing because some of the customers rent over 100,000 containers.
What should a developer change about the Visualforce page to help with the page load errors?

A. Implement pagination with an OffsetController.

B. Implement pagination with a StandardSetController.

C. Use lazy loading and a transient List variable.

D. Use JavaScript remoting with SOQL Offset.

Correct Answer:B

Question 68

- (Exam Topic 1)
A developer has built a multi-page wizard using a single Custom Controller to query and update data. Users are complaining that the pages are loading slowly.
What will improve performance? (Choose three.)

A. Reducing the view state

B. Using actionRegion and rerender

C. Turning off the standard stylesheet

D. Setting the Apex Page attribute cache=true

E. Using selective queries

Correct Answer:ADE

Question 69

- (Exam Topic 1)
A developer is working on code that requires a call to an external web service from a batch. How should the developer enable this functionality?

A. Implement a custom System.CalloutException class

B. Include Database.AllowCallout() in the class definition

C. Implement an @future method for the callout, and invoke it from the batch

D. Specify "callout=true" in the batch implementation

Correct Answer:B

Question 70

- (Exam Topic 3)
What is a benefit of using a WSDL with Apex?

A. Allows for web services to be tested and achieve code coverage

B. Allows for classes to be imported into Salesforce

C. Reduces the number of callouts to third-party web services

D. Enables the user to not pass a Session ID where it is not necessary

Correct Answer:B

Question 71

- (Exam Topic 3)
Which two scenarios require an Apex method to be called imperatively from a Lightning web component? Choose 2 answers

A. Calling a method that makes a web service callout

B. Calling a method that is not annotated with cacheable=true

C. Calling a method with the click of a button

D. Calling a method that is external to the main controller for the Lightning web component

Correct Answer:BC

Question 72

- (Exam Topic 3)
An org contains two custom objects; Building__c and Office__c. Office__c has a Lookup field to Building__c. A developer is asked to automatically populate the Number_of_Offices__c field on the Building__c object with the count of related Office__c records anytime an Office__c record s created or deleted. The developer cannot modify the field types. Which solution meets the requirements?

A. Flow

B. Workflow

C. Apex Trigger

D. Process Builder

Correct Answer:C

START Platform-Developer-II EXAM