What are two considerations for custom Apex Exception classes? Choose 2 answers.

• A.Constructor for custom Exceptions can only accept string values as arguments.
• B.Custom Exceptions cannot be extended by other Exception classes.
• C.Custom Exception class names must end with the word 'Exception'.
• D.Custom Exception classes must extend the base Exception class.

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A developer needs to join data received from an integration with an external system with parent records in Salesforce. The data set does not contain the Salesforce IDs of the parent records, but it does have a foreign key attribute that can be used to identify the parent.
Which action will allow the developer to relate records in the data model without knowing the Salesforce ID?

• A.Create a custom field on the child object of type External Relationship.
• B.Create a custom field on the child object of type Foreign Key
• C.Create and populate a custom field on the parent object marked as an External ID.
• D.Create and populate a custom field on the parent object marked as Unique

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A developer considers the following snippet of code: Boolean isOK; integer x; String theString = 'Hello'; if (isOK == false && theString == 'Hello') { x = 1; } else if (isOK == true && theString =='Hello') { x = 2; } else if (isOK != null && theString == 'Hello') { x = 3; } else { x = 4; } Based on this code, what is the value of x?

• A.3
• B.4
• C.1
• D.2

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A developer is creating a page that allows users to create multiple Opportunities. The developer is asked to verify the current user's default Opportunity record type, and set certain default values based on the record type before inserting the record.
How can the developer find the current user's default record type?

• A.Query the Profile where the ID equals userinfo.getprofileID () and then use the profile opportunity. getdefaultresoratype (} method,
• B.Create the opportunity and check the opportunity. recordtype, which will have the record ID of the current user's default record type, before inserting.
• C.Use opportunity. sobjectTyps. getDeacribse().getRecordTypeInfos {) to get a list of record types, and iterate through them until isDefaultRecordtypeMapping {) is true.
• D.Use the schema. Userinfo. Opportunity. getDefaultRecordType {) method.

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While writing an Apex class, a developer wants to make sure that all functionality being developed is handled as specified by the requirements.
Which approach should the developer use to be sure that the Apex class is working according to specifications?

• A.Create a test class to execute the business logic and run the test in the Developer Console.
• B.Include a try/catch block to the Apex class.
• C.Run the code in an Execute Anonymous block in the Developer Console.
• D.Include a savepoint and Database. rollback ().

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