Salesforce Salesforce Certifications DEX-450 Questions & Answers

• Question 101:

  What is considered the primary purpose for creating Apex tests?

  A. To confirm all classes and triggers compile successfully

  B. To ensure every use case of the application is covered by a test

  C. To confirm every trigger in executed at least once

  D. To guarantee at least 50% of code is covered by unit tests before it is deployed

  Correct Answer: B

• Question 102:

  Universal Containers requires Service Representatives to update all Cases at least one every three days. To make sure of this policy is obeyed, a developer has been asked to implement a field that displays the number of days since the last Case update. What should the developer use to configure the solution?

  A. Formula field

  B. Workflow rule

  C. Process Builder

  D. Scheduled Apex Class

  Correct Answer: A

• Question 103:

  A developer creates an Apex class that includes private methods. What can the developer do to ensure that the private methods can be accessed by the test class?

  A. Add the TestVisible attribute to the Apex class

  B. Add the SeeAllData attribute to the test methods.

  C. Add the TestVisible attribute to the apex methods.

  D. Add the SeeAllData attribute to the test class

  Correct Answer: C

• Question 104:

  A developer created an Apex trigger using the Developer Console and now wants to debug codeHow can the developer accomplish this in the Developer Console?

  A. Select the Override Log Triggers checkbox for the trigger

  B. Add the user name in the Log Inspector.

  C. Open the Progress tab in the Developer Console.

  D. Open the logs tab in the Developer Console.

  Correct Answer: D

• Question 105:

  A developer uses a Test Setup method to create an Account named 'Test'. The first test method deletes the Account record. What must be done in the second test method to use the Account?

  A. Use SELECT Id from Account where Name='Test'

  B. Restore the Account using an undeleted statement

  C. The Account cannot be used in the second test method

  D. Call the Test Setup method at the start of the test

  Correct Answer: A

• Question 106:

  Universal Containers (UC) decided it will not to send emails to support personnel directly from Salesforce in the event that an unhandled exception occurs. Instead, UC wants an external system be notified of the error. What is the appropriate publish/subscribe logic to meet these requirements?

  A. Publish the error event using the addError() method and have the external system subscribe to the event using CometD.

  B. Publish the error event using the Eventbus.publish() method and have the external system subscribe to the event using CometD.

  C. Have the external system subscribe to the BatchApexError event, no publishing is necessary.

  D. Publish the error event using the addError() method and write a trigger to subscribe to the event and notify the external system.

  Correct Answer: B

• Question 107:

  A developer has the following class and trigger code public class insurancerates{ public static final decimal smokercharge = 0.01; } trigger contacttrigger on contact (before insert){ insurancerates rates = new insurancerates(); decimal basecost=xxx; } Which code segment should a developer insert at the xxx to set the basecost variable to the value of the class variable smokercharge?

  A. Rates.smokercharge

  B. Contacttrigger.insurancerates.smokercharge

  C. Insurancerates.smokercharge

  D. Rates.getsmokercharge()

  Correct Answer: C

• Question 108:

  A developer wants to import 500 Opportunity records into a sandbox. Why should the developer choose to use data Loader instead of Data Import Wizard?

  A. Data Loader runs from the developer's browser.

  B. Data Import Wizard does not support Opportunities.

  C. Data Loader automatically relates Opportunities to Accounts.

  D. Data Import Wizard can not import all 500 records.

  Correct Answer: B

• Question 109:

  What is a capability of a StandardSetController?Choose 2 answers

  A. It allows pages to perform mass updates of records

  B. It allows pages to perform pagination with large record sets

  C. It enforces field-level security when reading large record sets

  D. It extends the functionality of a standard or custom controller

  Correct Answer: AB

• Question 110:

  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 the database class to handle DML operations

  B. Use maps to reference related records

  C. Use SOQL aggregate queries to retrieve child records

  D. Use lists for all DML operations

  Correct Answer: BD