Salesforce Salesforce Certifications DEX-450 Questions & Answers

• Question 161:

  Universal Containers wants a list button to display a Visualforce page that allows users to edit multiple records. Which Visualforce feature supports this requirement?

  A. tag

  B. Custom controller

  C. RecordSetVar page attribute

  D. Controller extension

  Correct Answer: C

• Question 162:

  A developer has to Identify a method in an 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 DML statement to save the changes to the database. Which two techniques should the developer implement as a best practice to esure transaction control and avoid exceeding governor limits? Choose 2 answers

  A. Use the Database.Savepoint method to enforce database integrity. (Missed)

  B. Use the System.Limit class to monitor the current CPU governor limit consuption. (Missed)

  C. Use the @ReadOnly annotation to bypass the number of rows returned by a SOQL.

  D. Use Partial DML statements to ensure only valid data is committed.

  Correct Answer: AB

• Question 163:

  A developer is creating a test coverage for a class and needs to insert records to validate functionality. Which method annotation should be used to create records for every method in the test class?

  A. @BeforeTest

  B. @isTest(SeeAllData=True)

  C. @TestSetup

  D. @PreTest

  Correct Answer: C

• Question 164:

  Which process automation should be used to send an outbound message without using Apex code?

  A. Workflow Rule

  B. Process Builder

  C. Approval Process

  D. Flow Builder

  Correct Answer: A

• Question 165:

  In the code below, which type does String inherit from? String s = 'Hello World';

  A. Prototype

  B. Object

  C. Object

  D. Class

  Correct Answer: B

• Question 166:

  Which resource can be included in a Lightning Component bundle?Choose 2 answers

  A. Apex class

  B. Adobe Flash

  C. JavaScript

  D. Documentation

  Correct Answer: CD

• Question 167:

  A developer needs to provide a way to mass edit, update, and delete records from a list view. In which two ways can this be accomplished? Choose 2 answers

  A. Create a new Visualforce page and Apex Controller for the list view that provides mass edit, update and delete functionality.

  B. Configure the user interface and enable both inline editing and enhanced lists.

  C. Download an unmanaged package from the AppExchange that provide customizable mass edit, update, and delete functionality.

  D. Download a managed package from the AppExchange that provides customizable Enhanced List Views and buttons

  Correct Answer: AC

• Question 168:

  A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what defined for payments in the PaymentProcessor interface. public interface PaymentProcessor { void pay(Decimal amount); }

  Which is the correct implementation to use the PaymentProcessor interface class?

  A. Public class CheckPaymentProcessor implements PaymentProcessor { public void pay(Decimal amount) {}

  B. }

  C. Public class CheckPaymentProcessor implements PaymentProcessor { public void pay(Decimal amount); }

  D. Public class CheckPaymentProcessor extends PaymentProcessor { public void pay(Decimal amount); }

  E. Public class CheckPaymentProcessor extends PaymentProcessor { public void pay(Decimal amount) {} }

  Correct Answer: A

• Question 169:

  A developer in a Salesforce org with 100 Accounts executes the following code using the Developer console:

  Account myAccount = new Account(Name = 'MyAccount');Insert myAccount;For (Integer x = 0; x < 250; x+ +)

  {Account newAccount = new Account (Name='MyAccount' + x);try {Insert newAccount;}catch (Exception ex) {System.debug (ex) ;}}insert new Account (Name='myAccount');

  How many accounts are in the org after this code is run?

  A. 101

  B. 100

  C. 102

  D. 252

  Correct Answer: B

• Question 170:

  A developer wants to retrieve the Contacts and Users with the email addres '[email protected]'. Which SOSL statement should the developer use?

  A. FIND {[email protected]} IN Email Fields RETURNING Contact (Email), User (Email)

  B. FIND {Email = '[email protected]'} IN Contact, User

  C. FIND {Email = '[email protected]'} RETURNING Contact (Email), User (Email)

  D. FIND Email IN Contact, User FOR {dev2uc.com}

  Correct Answer: A