Dev 3/21

There is a trigger on the Contact object which causes an update on the parent Account object. The Account update uses an update DML

statement and triggers a validation rule. Which of the following statements is true?

• The Contact record is update but the Account is not

• The Account trigger is rolled back

• The Account record is updated but Contact record is no

• The entire transaction is rolled back

In which Salesforce environments can Lightning Components be used? (Choose 3)

• • Lightning Experience

• • Salesforce Classic

• • Experiences

• • Salesforce Mobile App

You are working for a server installation provider and have been requested that whenever an Opportunity is created with a value over £10000 to

enforce that there has been a Site Review record created before allowing the Opportunity stage to be set to Closed Won. How best can this be

achieved?

• • Use an Apex trigger and use the setError() method if the criteria hasn’t been met

• • Use an Apex trigger and use the addError() method if the criteria hasn’t been met

• • Use a validation rule which is trigger if the criteria hasn’t been met

• • Use a record triggered Flow with the “Add Error” action

A developer wishes to streamline the setting up of data for their test class. How could this be achieved? (Select 2)

• • Create a class specifically to create data for test methods

• • Utilise the @isTest(SeeAllData=true) annotation

• • Add a @TestSetup annotated method to the class

• • Use the @isTest(isParallel=true) annotation

A developer has an @AuraEnabled method that is frequently used in several Lightning Web Components. It performs some complex calculations

based on data stored within custom metadata. Unless these values change, this method will always return the same result. How can the

developer improve the runtime performance of Lightning Components utilising this method?

• • Use the Platform Cache to store the computed value

• • Modify the method to be @AuraEnabled(cacheable=true)

• • Create an ECMAScript Module component to manage calling and caching the response

• • Before calling the apex method in the LWC, call “.setStorable()” on it

Which of the following isn’t true about Visualforce standard controllers?

• • Controllers can either be tied to a single record, or a collection of records

• • Field level and object level security is enforced by built in actions

• • They can be extended to provide customised logic

• • Standard controllers only exist for custom objects

What benefits are there to using the Lightning Web Component Framework? (Choose 4)

• • Faster development

• • Interoperability with popular frameworks such as React or Vue

• • Performance

• • Out-of-the-box components

• • Built upon web standards

Can Lightning Components subscribe to Platform Events?

• Yes

• No

A developer wishes to iterate over a list of records returned from a query, which of the following loop types is most appropriate?

• Do while loop

• Traditional for loop

• List or Set for loop

• While loop

• SOQL for loop

How can a developer react to and handle errors gracefully?

• Execute code within a run-catch block

• Execute code within a try-catch block

• Execute the code within a catch-exception block

• Execute the code within a try-exception block