As part of a custom development, a developer creates a Lightning component to show how a particular opportunity progresses over time. The component must display the date stamp when any of the following fields change:
* Amount, Probability, Stage, or Close Date
How should the developer access the data that must be displayed?

• A.Create custom a custom date field on Opportunity for each field to track the previous date and execute a SOQL query for date fields.
• B.Execute a SOQL query for Amount, Probability, Stage, and Close Date on the OpportunityHistory object.
• C.Subscribe to the OpportunityHistory Change Data Capture event in the Lightning component.
• D.Subscribe to the Opportunity Change Data Capture event in the Lightning component.

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A developer is creating unit tests for code that makes SOAP web service callouts. The developer needs to insert some test data as a part of the unit tests setup. What are three actions to enable this functionality?

• A.Update code to call Test.setMock().
• B.Implement the WebServiceMock interface.
• C.Surround the data insertion with Test.startTest(), Test.stopTest().
• D.Surround the callout with Test.startTest(), Test.stopTest().
• E.Implement the HttpCalloutMock interface.

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A company has a native iOS app for placing orders 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 Web Service
• B.Apex REST Web Service
• C.Apex REST Callout
• D.Apex SOAP Callout

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How can a developer efficiently incorporate multiple JavaScript libraries, such as JQuery and MomentJS, in a Lightning component?

• A.Join multiple assets from a static resource
• B.Use JavaScript remoting and script tags
• C.Implement the libraries in separate helper files
• D.Use CDNs with script attributes

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Given a list of Opportunity records named opportunityList, which code snippet is best for querying all Contacts of the Opportunity's Account?
A)

B)

C)

D)

• A.Option D
• B.Option C
• C.Option B
• D.Option A

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