Salesforce DEX-450 Online Practice Questions and Exam Preparation

Salesforce DEX-450 Online Questions & Answers

• Question 151:

  A sales manager wants to make sure that whenever an opportunity stage is changed to 'Closed Won', a new case will be of created for the support team to collect necessary information from the customer. How should a developer accomplish this?

  A. Create a Process Builder to create the new case.
  B. Set up a validation rule on the Opportunity Stage.
  C. Create a lookup field to the Case object on the opportunity object.
  D. Create a workflow rule to create the new case.
  A. Create a Process Builder to create the new case.

• Question 152:

  Which statement is true about developing in a multi-tenant environment?

  A. Governor limits prevent apex from impactiong the performance of multiple tenants on the same instance
  B. Apex sharing controls access to records fomr multiple tenants on the same instance
  C. Global apex classes can be referenced from multiple tenants on the same instance
  D. Org-level data security controls which users can see data from multiple tenants on the same instance
  A. Governor limits prevent apex from impactiong the performance of multiple tenants on the same instance

• Question 153:

  How should a developer write unit tests for a private method in an Apex class?

  A. Use the SeeAllData annotation.
  B. Add a test method in the Apex class.
  C. Use the TestVisible annotation.
  D. Mark the Apex class as global.
  C. Use the TestVisible annotation.

• Question 154:

  Which governor limit applies to all the code in an apex transaction?

  A. Elapsed CPU time
  B. Number of new records created
  C. Number of classes called
  D. Elapsed SOQL query time
  A. Elapsed CPU time

• Question 155:

  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
  B. 100

• Question 156:

  Given the following block code: try{ List retrievedRecords = [SELECT Id FROM Account WHERE Website = null]; }catch(Exception e){ //manage exception logic } What should a developer do to ensure the code execution is disrupted if the retrievedRecordslist remains empty after the SOQL query?

  A. Check the state of the retrieveRecords variable and throw a custom exception if the variable is empty.
  B. Check the state of the retrievedRecords variable and use System.assert(false) if the variable is empty
  C. Check the state of the retrievedRecords variable and access the first element of the list if the variable is empty.
  D. Replace the retrievedRecords variable declaration from a List of Account to a single Account.
  B. Check the state of the retrievedRecords variable and use System.assert(false) if the variable is empty

• Question 157:

  When the value of a field of an account record is updated, which method will update the value of a custom field opportunity? Choose 2 answers.

  A. A process builder on the Account object
  B. An Apex trigger on the Account object.
  C. A cross-object formula field on the Account object
  D. A workflow rule on the Account object
  A. A process builder on the Account object
  B. An Apex trigger on the Account object.

• Question 158:

  Which declarative method helps ensure quality data? (Choose 3)

  A. Validation Rules
  B. Workflow alerts
  C. Exception Handling
  D. Lookup Filters
  E. Page Layouts
  A. Validation Rules
  D. Lookup Filters
  E. Page Layouts

• Question 159:

  Which component is available to deploy using Metadata API? Choose 2 answers

  A. Case Layout
  B. Account Layout
  C. Case Feed Layout
  D. ConsoleLayout
  A. Case Layout
  B. Account Layout

• Question 160:

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

  A. Prototype
  B. Object
  C. Object
  D. Class
  B. Object