A developer has to identify a method in en Apex class that performs resource intensive actions in memory by iterating over the result set of a SOQL statement on the account. The method also performs a SOQL statement to save the changes to the database.
Which two techniques should the developer implement as a best practice to ensure transaction control and avoid exceeding governor limits?
Choose 2 answers

• A.Use the Database.Savepoint method to enforce database Integrity.
• B.Use the @ReadOnly annotation to bypass the number of rows returned by a SOQL.
• C.Use the System.Limit class to monitor the current CPU governor limit consumption.
• D.Use Partial DHL statements to ensure only valid data is committed.

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Considering the following code snippet:

When the code executes a DML exception is thrown.
How should the developer modify the code to ensure exceptions are handled gracefully?

• A.Implement the upsert DML statement.
• B.Implement Change Data Capture
• C.Implement a try/catch block for the DML.
• D.Remove null items from the list if Accounts.

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A developer wrote Apex code that calls out to an external system using REST API.
How should a developer write the test to prove the code is working as intended?

• A.Write a class that implements webservicemock.
• B.Write a class that implements HTTPcalloutMock.
• C.Write a class that extends HTTPcalloutMock.
• D.Write a class that extends webserviceloo.

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A developer created a trigger on a custom object. This custom object also has some dependent pick lists.
According to the order of execution rules, which step happens first?

• A.Old values are overwritten with the new record values.
• B.JavaScript validation is run in the browser,
• C.System validation is run for maximum field lengths,
• D.The original record Is loaded from the database.

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A Visual Flow uses an apex Action to provide additional information about multiple Contacts, stored in a custom class, contactInfo. Which is the correct definition of the Apex method that gets additional information?

• A.@InvocableMethod(Label='additional Info')
  public ContactInfo(Id contactId)
  { /*implementation*/ }
• B.@InvocableMethod(label='Additional Info')
  public List<ContactInfo> getInfo(List<Id> contactIds)
  { /*implementation*/ }
• C.@InvocableMethod(label='additional Info')
  public static ContactInfo getInfo(Id contactId)
  { /*implementation*/ }
• D.@invocableMethod(label)='Additional Info')
  public static List<ContactInfo> getInfo(List<Id> contactIds)
  { /*Implementation*/ }

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