Salesforce Salesforce Certifications DEX-450 Questions & Answers

• Question 201:

  In terms of the MVC paradigm, what are two advantages of implementing the layer of a Salesforce application using Aura Component-based development over Visualforce? Choose 2 answers

  A. Self-contained and reusable units of an application (Missed)

  B. Rich component ecosystem (Missed)

  C. Automatic code generation

  D. Server-side run-time debugging

  Correct Answer: AB

• Question 202:

  A developer is creating an enhancement to an application that will allow people to be related to their employer. Which data model provides the simplest solution to meet the requirements?

  A. Create a lookup realtionship to indicate that a person has an employer

  B. Create a master-detail relationship to indicate that a person has an employer

  C. Create a junction object to relate many people to many through master-detail relationship

  D. Create a junction object to relate many people to many through lookup relationship

  Correct Answer: B

• Question 203:

  A user selects a value from a multi-select picklist. How is this selected value represented in Apex?

  A. As a string ending with a comma

  B. As a string

  C. As a list< String > with one element

  D. As a set< string > with one element

  Correct Answer: B

• Question 204:

  A Lightning component has a wired property, searcResults, that stores a list of Opportunities. Which definition of the Apex method, to which the searchResults property is wired, should be used?

  A. @AuraEnabled(cacheable=true) public static List search(String term) { /* implementation*/ }

  B. @AuraEnabled(cacheable=true) public List search(String term) { /*implementation*/ }

  C. @AuraEnabled(cacheable=false) public static List search(String term) { /*implementation*/ }

  D. @AuraEnabled(cacheable=false) public List search(String term) { /*implementation*/ }

  Correct Answer: A

• Question 205:

  What are two valid options for iterating through each Account in the collection List named AccountList? Choose 2 answers.

  A. For (List L : AccountList) {...}

  B. For (Account theAccount : AccountList){...}

  C. For(AccountList){...}

  D. For (Integer i=0; i

  Correct Answer: BD

• Question 206:

  A developer needs to confirm that an Account trigger is working correctly without changing the organization's data.

  What would the developer do to test the Account trigger?

  A. Use the Test menu on the developer Console to run all test classes for the account trigger.

  B. Use the New button on the Salesforce Accounts Tab to create a new Account record.

  C. Use the Open Execute Anonymous feature on the Developer Console to run an `insert Account' DML statement.

  D. Use Deply from the Force.com IDE to deploy an `insert Account' Apex class.

  Correct Answer: A

• Question 207:

  A developer wants to display all of the available record types for a Case object. The developer also wants to display the picklist values for the Case.Status field. The Case object and the Case.Status field are on a custom Visualforce page. Which action can the developer perform to get the record types and picklist values in the controller? (Choose 2)

  A. Use Schema.PicklistEntry returned by Case.Status.getDescribe().getPicklistValues().

  B. Use Schema.RecordTypeInfo returned by Case.sObjectType.getDescribe().getRecordTypeInfos().

  C. Use SOQL to query Case records in the org to get all the RecordType values available for Case.

  D. Use SOQL to query case records in the org to get all values for the Status picklist field.

  Correct Answer: AB

• Question 208:

  A candidate may apply to multiple jobs at the company Universal Containers by submitting a single application per job posting, that application cannot be modified to be resubmitted to a different job posting.What can the administrator do to associate an application with each job posting in the schema for the organization?

  A. Create a lookup relationship on both objects to a junction object called Job Posting Applications.

  B. Create a master-detail relationship in the Job Postings custom object to the Applications custom object.

  C. Create a master-detail relationship in the Application custom object to the Job Postings custom object.

  D. Create a lookup relationship in the Applications custom object to the Job Postings custom object.

  Correct Answer: C

• Question 209:

  A developer needs to create a custom visualforce button for the opportunity object page layout that will cause a web service to be called and redirect the user to a new page when clicked. Which three attributes need to be defined in the tag of the visualforce page to enable this functionality?

  A. Standardcontroller

  B. Extensions

  C. Action

  D. Controller

  Correct Answer: ABC

• Question 210:

  Application Events follow the traditional publish-subscribe model. Which method is used to fire an event?

  A. Fire()

  B. Emit()

  C. RegisterEvent()

  D. FireEvent()

  Correct Answer: A