A developer has generated Apex code from a WSDL for an external web service. The web service requires Basic authentication.
What code should the developer use to authenticate?

• A.stub.inputHttpHeaders_x.put('Authorization' , 'Basic QthZGprJpchVulHNchFtZQ')
• B.Http.setAuthentication('Basic QthZGprjpchVulHNchFtZQ')
• C.Http.setHeader ('Authorization' , 'Basic QthZGprjpchVulHNchFtZQ!)
• D.stub.authentication.put ('Authorization','Basic QthZGprjpchVulHNchFtZQ')

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For compliance purposes, a company is required to track long-term product usage in their org. The information that they need to log will be collected from more than one object and. over time, they predict they will have hundreds of millions of records.
What should a developer use to implement this?

• A.Field History Tracking
• B.Setup Audit Trail
• C.Bin objects
• D.Field Audit Trail

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What is a best practice when unit testing a controller? (Choose two.)

• A.Access test data by using seeAIIData=true
• B.Verify correct references by using getURL()
• C.Set query parameters by using getParameters().put
• D.Simulate user interaction by leveraging Test.setMock()

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Refer to re code segment above.

When following best practices for writing Apex taggers, which two lots are wrong or cause for concern?
Choose 2 answers

• A.Line 6
• B.Line 16
• C.Line 11
• D.Line 20

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Consider the following queries. For these queries, assume that there are more than 200,000 Account records. These records include soft-deleted records; that is, deleted records that are still in the Recycle Bin. Note that there are two fields that are marked as External Id on the Account. These fields are Customer_Number__c and ERP_Key__c.
Which two queries are optimized for large data volumes? Choose 2 answers

• A.SELECT Id FROM Account WHERE Name != ' ' AND Customer Number c = 'ValueA'
• B.SELECT Id FROM Account WHERE Id IN : aListVariable
• C.SELECT Id FROM Account WHERE Name != ' ' AND IsDeleted = false
• D.SELECT Id FROM Account WHERE Name != NULL

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