Salesforce DEX-450 Online Practice Questions and Exam Preparation

Salesforce DEX-450 Online Questions & Answers

• Question 181:

  A developer can use the debug log to see which three types of information? Choose 3 answers

  A. Resource usage and limits
  B. Database changes
  C. User login events
  D. HTTP callout to external systems
  E. Actions triggered by time-based workflow
  B. Database changes
  D. HTTP callout to external systems
  E. Actions triggered by time-based workflow

• Question 182:

  How should a developer make sure that a child record on a custom object, with a lookup to the Account object, has the same sharing access as its associated account?

  A. Create a Sharing Rule comparing the custom object owner to the account owner.
  B. Create a validation rule on the custom object comparing the record owners on both records.
  C. Include the sharing related list on the custom object page layout.
  D. Ensure that the relationship between the objects is Master-Detail.
  D. Ensure that the relationship between the objects is Master-Detail.

• Question 183:

  A developer created a Visualforce page and custom controller to display the account type field as shown below. Custom controller code: public class customCtrlr{ private Account theAccount; public String actType; public customCtrlr()

  { theAccount = [SELECT Id, Type FROM Account WHERE Id = :apexPages.currentPage().getParameters().get('id')]; actType = theAccount.Type; } } Visualforce page snippet:

  The Account Type is {!actType} The value of the account type field is not being displayed correctly on the page. Assuming the custom controller is property referenced on the Visualforce page, what should the developer do to correct the

  problem?

  A. Add a getter method for the actType attribute.
  B. Change theAccount attribute to public.
  C. Convert theAccount.Type to a String.
  D. Add with sharing to the custom controller.
  A. Add a getter method for the actType attribute.

• Question 184:

  What is a benefit of using an after insert trigger over using a before insert trigger?

  A. An after insert trigger allows a developer to bypass validation rules when updating fields on the new record.
  B. An after insert trigger allows a developer to insert other objects that reference the new record.
  C. An after insert trigger allows a developer to make a callout to an external service.
  D. An after insert trigger allows a developer to modify fields in the new record without a query.
  B. An after insert trigger allows a developer to insert other objects that reference the new record.

• Question 185:

  A developer writes a trigger on the Account object on the before update event that increments a count field. A workflow rule also increments the count field every time that an Account is created or update. The field update in the workflow rule is configured to not re-evaluate workflow rules. What is the value of the count field if an Account is inserted with an initial value of zero, assuming no other automation logic is implemented on the Account?

  A. 3
  B. 2
  C. 1
  D. 4
  A. 3

• Question 186:

  To which data type in Apex a currency field automatically assigned?

  A. Integer
  B. Decimal
  C. Double
  D. Currency
  B. Decimal

• Question 187:

  From which two locations can a developer determine the overall code coverage for a sandbox? Choose two answers

  A. The Apex classes setup page
  B. The Test Suite Run panel the Developer Console
  C. The Test Tab of the Developer Console
  D. The Apex Test Execution page
  A. The Apex classes setup page
  C. The Test Tab of the Developer Console

• Question 188:

  Which SOQL query successfully returns the Accounts grouped by name?

  A. SELECT Type, Max(CreatedDate) FROM Account GROUP BY Name
  B. SELECT Name, Max(CreatedDate) FROM Account GROUP BY Name
  C. SELECT Id, Type, Max(CreatedDate) FROM Account GROUP BY Name
  D. SELECT Type, Name, Max(CreatedDate) FROM Account GROUP BY Name LIMIT 5
  B. SELECT Name, Max(CreatedDate) FROM Account GROUP BY Name

• Question 189:

  A developer wants to store a description of a product that can be entered on separate lines by a user during product setup and later displayed on a Visualforce page for shoppers. Which field type should the developer choose to ensure that the description will be searchable in the custom Apex SOQL queries that are written?

  A. Text Area (Rich)
  B. Text Area (Long)
  C. Text
  D. Text Area
  D. Text Area

• Question 190:

  What must the Controller for a Visualforce page utilize to override the Standard Opportunity view button?

  A. The StandardSetController to support related lists for pagination.
  B. The Opportunity StandardController for pre -built functionality.
  C. A callback constructor to reference the StandardController.
  D. A constructor that initializes a private Opportunity variable.
  B. The Opportunity StandardController for pre -built functionality.