Salesforce Salesforce Certifications DEX-450 Questions & Answers

• Question 131:

  What must the Controller for a Visulforce page utilized to override the standard Opportunity view button?

  A. A constructor that initialized a private Opportunity variable.

  B. A callback constructor to reference the StandardController

  C. The StandardSetController to support related lists for pagination

  D. The Opportunity StandardController for pre-built functionality

  Correct Answer: D

• Question 132:

  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 < 150; 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 133:

  What is a benefit of the Lightning Component framework?Choose 3 answers

  A. It uses client-side Apex controllers for logic.

  B. It uses a traditional publish-subscribe model.

  C. It uses an event-driven architecture

  D. It uses an MVC architectural design pattern.

  E. It uses server-side JavaScript controller for logic.

  Correct Answer: BCD

• Question 134:

  Which statement is true about a hierarchical relationship as it pertains to user records?

  A. It uses a junction object and lookup relationships to allow many user records to be related to many other user records

  B. It uses a junction object and master-detail relationship to allow many user records to be related to many other user records

  C. It uses a master-detail relationship to allow one user record to be related to another user record

  D. It uses a special lookup relationship to allow one user record to be related to another user record

  Correct Answer: D

• Question 135:

  A developer must create a CreditcardPayment class that provides an implementation of an existing Payment class. Public virtual class Payment { public virtual void makePayment(Decimal amount) { / *implementation*/ } }

  Which is the correct implementation?

  A. Public class CreditcardPayment extends Payment { public override void makePayment(Decimal amount) { /*implementation*/ } }

  B. Public class CreditCardPayment implements Payment { public virtual void makePayment(Decimal amount) { /*implementation*/ } }

  C. Public class CreditCardPayment extends Payment { public virtual void makePayment(Decimal amount) { /*implementation*/ } }

  D. Public class CreditCardPayment implements Payment { public override void makePayment(Decimal amount) { /*Implementation*/ } }

  Correct Answer: A

• Question 136:

  A platform developer needs to write an apex method that will only perform an action if a record is assigned to a specific record type. Which two options allow the developer to dynamically determine the ID of the required record type by its name? Choose 2 answers

  A. Use the getrecordtypeinfosbydevelopername() method in the describesobjectresult class

  B. Make an outbound web services call to the SOAP API

  C. Execute a SOQL query on the recordtype object

  D. Hardcore the ID as a constant in an apex class

  Correct Answer: AC

• Question 137:

  How can a developer determine, from the DescribeSObjectResult, if the current user will be able to create records for an object in Apex?

  A. By using the isInsertable() method.

  B. By using the isCreatable() method.

  C. By using the hasAccess() method.

  D. By using the canCreate() method.

  Correct Answer: B

• Question 138:

  A developer has a Visualforce page and custom controller to save Account records. The developer wants to display any validation rule violation to the user. How can the developer make sure that validation rule violations are displayed?

  A. Add cuatom controller attributes to display the message.

  B. Include on the Visualforce page.

  C. Use a try/catch with a custom exception class.

  D. Perform the DML using the Database.upsert() method.

  Correct Answer: B

• Question 139:

  Which two platform features allow for the use of unsupported languages? Choose 2 answers

  A. Heroku Acm

  B. App.json

  C. Buildpacks

  D. Docker

  Correct Answer: CD

• Question 140:

  Universal Containers has an order system that uses an Order Number to identify an order for customers and service agents. Order will be imported into Salesforce.

  A. Lookup

  B. Direct Lookup

  C. Number with External ID

  D. Indirect Lookup

  Correct Answer: C