Salesforce Salesforce Certifications DEX-450 Questions & Answers

• Question 241:

  How should the developer overcome this problem? While writing a test class that covers an OpportunityLineItem trigger, a Developer is unable to create a standard Pricebook since one already exist in the org.

  A. Use @IsTest(SeeAllData=true) and delete the existing standard Pricebook.

  B. Use @TestVisible to allow the test method to see the standard Pricebook.

  C. Use Test.getStandardPricebbokId()to get the standard Pricebook ID.

  D. Use Test.loaddata() and a Static Resource to load a standard Pricebook

  Correct Answer: C

• Question 242:

  When would the use of Heroku Postgres be appropriate?

  A. To cache commonly accessed data for faster retrieval.

  B. To interconnect Microsoft SQL servers to Heroku Applications.

  C. To store and retrieve data using the Structured Query Language.

  D. To store user generated pictures and Word documents.

  Correct Answer: C

• Question 243:

  Managed Packages can be created in which type of org?

  A. Developer Sandbox

  B. Unlimited Edition

  C. Developer Edition

  D. Partial Copy Sandbox

  Correct Answer: C

• Question 244:

  A developer uses an 'after update' trigger on the Account object to update all the Contacts related to the

  Account. The trigger code shown below is randomly failing.

  List theContacts = new List(); for(Account a : Trigger.new){

  for(Contact c : [SELECT Id, Account_Date__c FROM

  Contact WHERE AccountId = :a.Id]){ c.Account_Date__c = Date.today(); theContacts.add(c); }

  } updates theContacts;

  Which line of code is causing the code block to fail?

  A. An exception is thrown if theContacts is empty

  B. The trigger processes more than 200 records in the for loop.

  C. An exception is thrown if Account_Date__c is null.

  D. A SOQL query is located inside of the for loop.

  Correct Answer: D

• Question 245:

  A developer must troubleshoot to pinpoint the causes of performance issues when a custom page loads in their org. Which tool should the developer use to troubleshoot?

  A. AppExchange

  B. Salesforce CLI

  C. Visual Studio Core IDE

  D. Developer Console

  Correct Answer: D

• Question 246:

  Which three data types can be returned from an SOQL statement?

  A. Boolean

  B. List of objects

  C. String

  D. Integer

  E. Single object

  Correct Answer: BDE

• Question 247:

  Which feature allows a developer to create test records for use in test classes?

  A. Static resources

  B. Documents

  C. Httpcalloutmocks

  D. Webservicetests

  Correct Answer: D

• Question 248:

  What is the value of x after the code segment executes?String x = 'A';Integer i = 10;if ( i < 15 ) {i = 15;x = 'B';} else if ( i < 20 ) {x = 'C';} else {x = 'D'; }

  A. D

  B. A

  C. B

  D. C

  Correct Answer: C

• Question 249:

  A change set deployment from a sandbox to production fails due to a failure in a managed package unit test. The developer spoke with the manager package owner and they determined it is a false positive and can be ignored. What should the developer do to successfully deploy?

  A. Select 'Run local tests' to run all tests in the org that are not in the managed package.

  B. Select 'Fast Deploy' to run only the tests that are in the change set.

  C. Edit the managed package's unit test.

  D. Select 'Run local tests' to run only the tests that are in the change set.

  Correct Answer: A

• Question 250:

  The Review__c object has a lookup relationship up to the Job_Application__c object. The Job_Application__c object has a master-detail relationship up the Position__c object. The relationship field names are based on the auto-populated defaults.

  What is the recommended way to display field data from the related Review__c records on a Visualforce page for a single Position__c record?

  A. Utilize the Standard Controller for position__c and a Controller Extension to query for Review__c data.

  B. Utilize the Standard Controller for Position__c and cross-object Formula fields on the job_Application__c object to display Review__c data.

  C. Utilize the Standard Controller for Position__c and cross-object Formula fields on the Review__c object to display Review__c data.

  D. Utilize the Standard Controller for position__c and expression syntax in the page to display related Review__c data through the job_Application__c object

  Correct Answer: A