What is a correct pattern to follow when programming in Apex on a Multi-tenant platform?

• A.Apex code is created in a separate environment from schema to reduce deployment errors.
• B.Queries select the fewest fields and records possible to avoid exceeding governor limits.
• C.DML is performed on one record at a time to avoid possible data concurrency issues.
• D.Apex classes use the ''with sharing" keyword to prevent access from other server tenants.

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Which set of roll-up types are available when creating a roll-up summary field?

• A.AVRAGE, COUNT, SUM, MIN, MAX
• B.SUM, MIN, MAX
• C.AVERAGE, SUM, MIN, MAX
• D.COUNT, SUM, MIN, MAX

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An apex trigger fails because it exceeds governor limits. Which two techniques should a developer use to resolve the problem? Choose 2 answers

• A.Use lists for all DML operations
• B.Use maps to reference related records
• C.Use the database class to handle DML operations
• D.Use SOQL aggregate queries to retrieve child records

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The following code snippet is executed by a Lightning web component in an environment with more than 2,000 lead records:

Which governor limit will likely be exceeded within the Apex transaction?

• A.Total number of SOQL queries issued
• B.Total number of DML statement issued
• C.Total number of records processed as a result of DML statements
• D.Total number of records retrieved by SOQL queries

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Why would a developer use Test. startTest( ) and Test.stopTest( )?

• A.To avoid Apex code coverage requirements for the code between these lines
• B.To indicate test code so that it does not Impact Apex line count governor limits.
• C.To start and stop anonymous block execution when executing anonymous Apex code
• D.To create an additional set of governor limits during the execution of a single test class.

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