Salesforce Certification DEX-450 Exam Dumps

dumps2021-10-19T03:37:29+08:00

Are you preparing for your Salesforce certification DEX-450 exam? We provide the latest Salesforce DEX-450 exam dumps questions, which are the latest material in the preparation. With studying all of Salesforce certification DEX-450 exam dumps questions, you can pass the test in the first attempt. Free Salesforce Platform App Builder DEX-450 exam dumps are available below.

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1. Which data type or collection of data types can SOQL statements populate or evaluate to? (Choose 3)

A single sObject

An integer

A string

A list of sObjects

A Boolean

2. The initial value for a number field on a record is 1. A user updated the value of the number field to 10. This action invokes a workflow field update, which changes the value of the number field to 11. After the workflow field update, an update trigger fires.

What is the value of the number field of the object that is obtained from Trigger.old?

Null

3. Which option would a developer use to display the Accounts created in the current week and the number of related Contacts using a debug statement in Apex?

For (Account acc: [SELECT Id, Name, (SELECT Id, Name FROM Contacts) FROM Account WHERE CreatedDate = THIS_WEEK]) { List cons = acc.Contacts; System.debug(acc.Name + ‘ has ’ + cons.size() + ‘Contacts’; }

For (Account acc: [SELECT Id, Name, (SELECT Id, Name FROM Contacts) FROM Account WHERE CreatedDate = CURRENT_WEEK]) {List cons = acc.Contacts; System.debug(acc.Name + ‘ has ‘ + cons.size() + ‘Contacts’); }

For (Account acc: [SELECT Id, Name, Account.Contacts FROM Account WHERE CreatedDate = CURRENT_WEEK]) {List cons = acc.Account.Contacts; System.debug(acc.Name + ‘ has ‘ + cons.size() + ‘Contacts’); }

For (Account acc: [SELECT Id, Name, Account.Contacts FROM Account WHERE CreatedDate = THIS_WEEK]) {List cons = acc.Account.Contacts; System.debug(acc.Name + ‘ has ‘ + cons.size() + ‘Contacts’ }

4. Which two SOSL searches will returns records matching search criteria contained in any of the searchable texts fields on an object? Choose 2 answers

[FIND 'Acme*' RETURNING Account,Opportunity];

[FIND 'Acme*' IN ANY FIELDS RETURNING Account,Opportunity];

[FIND 'Acme*' IN TEXT FIELDS RETURNING Account,Opportunity];

[FIND 'Acme*' IN ALL FIELDS RETURNING Account,Opportunity];

5. When loading data into an operation, what can a developer do to match records to update existing records? (Choose 2)

Match an auto-generated Number field to a column in the imported file.

Match an external Id Text field to a column in the imported file.

Match the Name field to a column in the imported file.

Match the Id field to a column in the imported file.

6. How should a developer avoid hitting the governor limits in test methods?

Use @TestVisible on methods that create records.

Use Test.loadData() to load data from a static resource.

Use @IsTest (SeeAllData=true) to use existing data.

Use Test.startTest() to reset governor limits.

7. From which two locations can a developer determine the overall code coverage for a sandbox? Choose two answers

The Apex classes setup page

The Test Suite Run panel the Developer Console

The Test Tab of the Developer Console

The Apex Test Execution page

8. When creating unit tests in Apex, which statement is accurate? Choose 2

Unit tests with multiple methods result in all methods failing every time one method fails.

Increased test coverage requires large test classes with many lines of code in one method.

Triggers do not require any unit tests in order to deploy them from sandbox to production.

System Assert statements that do not Increase code coverage contribute important feedback in unit tests

9. A lead object has a custom field Prior_Email__c.

The following trigger is intended to copy the current Email into the Prior_Email__c field any time the Email field is changed:

Which type of exception will this trigger cause?

A null reference exception

A compile time exception

A DML exception

A limit exception when doing a bulk update

10. What is the preferred way to reference web content such as images, style sheets, JavaScript, and other libraries that is used in Visualforce pages?

By accessing the content from Chatter Files.

By uploading the content in the Documents tab.

By accessing the content from a third -party CO

By uploading the content as a Static Resource.

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11. Which code block returns the ListView of an Account object using the following debug statement? system.debug(controller.getListViewOptions() );

ApexPages.StandardSetController controller = new ApexPages.StandardSetController( Database.getQueryLocator( 'SELECT Id FROM Account LIMIT 1'));

ApexPages.StandardController controller = new ApexPages.StandardController( [SELECT Id FROM Account LIMIT 1]);

ApexPages.StandardController controller = new ApexPages.StandardController( Database.getQueryLocator( 'SELECT Id FROM Account LIMIT 1'));

ApexPages.StandardController controller = new ApexPages.StandardController( [SELECT Id FROM Account LIMIT 1]);

12. In a single record, a user selects multiple values from a multi-select picklist.

How are the selected values represented in Apex?

As a String with each value separated by a comma

As a Set with each value as an element in the set

As a String with each value separated by a semicolon

As a List with each value as an element in the list Previous

13. What is a capability of formula fields? (Choose 3)

Generate a link using the HYPERLINK function to a specific record in a legacy system.

Display the previous values for a field using the PRIORVALUE function.

Return and display a field value from another object using the VLOOKUP function.

Determine if a datetime field has passed using the NOW function.

Determine which of three different images to display using the IF function.

14. A developer needs to include a Visualforce page in the detail section of a page layout for the Account object, but does not see the page as an available option in the Page Layout Editor.

Which attribute must the developer include in the <apex:page> tag to ensure the Visualforce page can be embedded in a page layout?

Action="AccountId"

StandardController="Account"

Extensions="AccountController"

Controller="Account"

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

Heroku Acm

App.json

Buildpacks

Docker

16. A developer wants to create a custom object to track Customer Invoices.

How should Invoices and Accounts be related to ensure that all Invoices are visible to everyone with access to an Account?

The Account should have a Master-Detail relationship to the Invoice.

The Invoice should have a Master-Detail relationship to the Account

The Account should have a Lookup relationship to the Invoice

The Invoice should have a Lookup relationship to the Account Previous

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

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

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

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

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

18. A developer is debugging the following code to determinate why Accounts are not being created Account a = new Account(Name = 'A'); Database.insert(a, false);

How should the code be altered to help debug the issue?

Add a System.debug() statement before the insert method

Add a try/catch around the insert method

Set the second insert method parameter to TRUE

Collect the insert method return value a Saveresult record

19. 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?

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

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

Edit the managed package's unit test.

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

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

Static resources

Documents

Httpcalloutmocks

Webservicetests

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21. Which collection type provides unique key/value pairings of data?

Map

List

Array

Set

22. Where would a developer build a managed package?

Developer Sandbox

Unlimited Edition

Partial Copy Sandbox

Developer Edition

23. Which tag should a developer include when styling from external CSS is required in a Visualforce page?

Apex : includeStyle

Apex : require

Apex : includeScript

Apex : stylesheet

24. A developer is asked to create a custom visual force page that will be used as a dashboard component.

Which three are valid controller options for this page? Choose 3 answers

Use a custom controller

Use a custom controller with extensions

Use a standard controller with extensions

Do not specify a controller

Use a standard controller

25. What si the debug output of the following apex code? Decimal thevalue; system.debug(thevalue);

Undefined

Null

0.0

26. A developer has a unit test that is failing. To identify the issue, the developer copies the code inside the test method and executes it via the Execute Anonymous Apex Tool. The code then executes without failing.

Why did the unit test failed, but not the Execute Anonymous?

The test method has a syntax error in the code.

The test method relies on existing data in the database

The test method use a try/catch block

The test method calls an @future method.

27. Which three options allow a developer to use custom styling in a Visualforce page? (Choose three.)

<apex:stylesheet> tag

Inline CSS

<apex:style>tag

<apex:stylesheets>tag

A static resource

28. The sales management team requires that the lead source field of the Lead record be populated when Lead is converted.

What would a developer use to ensure that a user populates the Lead source field?

Validation rule

Formula field

Workflow rule

Process builder

29. 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?

101

100

102

252

30. When are code coverage calculations updated?

When unit tests are run on an organization.

When changes are made to an organization's configuration.

When a deployment is validated.

When Apex code is saved.

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31. 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 process builder on the Account object

An Apex trigger on the Account object.

A cross-object formula field on the Account object

A workflow rule on the Account object

32. Which user can edit a record after it has been locked for approval? (Choose 2)

Any user with a higher role in the hierarchy

A user who is assigned as the current approver

Any user who approved the record previously

An administrator

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

A constructor that initialized a private Opportunity variable.

A callback constructor to reference the StandardController

The StandardSetController to support related lists for pagination

The Opportunity StandardController for pre-built functionality

34. 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 two.)

Make an outbound web services call to the SOAP AP

Hardcode the ID as a constant in an Apex class.

Use the getRecordTypeInfosByName() method in the DescribeSObjectResult class.

Execute a SOQL query on the RecordType object.

35. A developer needs to avoid potential system problems that can arise in a multi-tenant architecture.

Which requirement helps prevent poorty written applications from being deployed to a production environment?

SOQL queries must reference sObActs with their appropriate namespace.

All Apex code must be annotated with the with sharing keyword.

Unit tests must cover at least 75% of the application's Apex code

All validation rules must be active before they can be deployed.

36. Given the following block code: try{ List <Accounts> 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?

Check the state of the retrieveRecords variable and throw a custom exception if the variable is empty.

Check the state of the retrievedRecords variable and use System.assert(false) if the variable is empty

Check the state of the retrievedRecords variable and access the first element of the list if the variable is empty.

Replace the retrievedRecords variable declaration from a List of Account to a single Account.

37. 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?

Add cuatom controller attributes to display the message.

Include <apex:message> on the Visualforce page.

Use a try/catch with a custom exception class.

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

38. 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<Contacts> theContacts = new List<Contacts>(); 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?

An exception is thrown if theContacts is empty

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

An exception is thrown if Account_Date__c is null.

A SOQL query is located inside of the for loop.

39. A developer wants to override a button using Visualforce on an object.

What is the requirement?

The controller or extension must have a PageReference method.

The standardController attribute must be set to the object.

The action attribute must be set to a controller method.

The object record must be instantiated in a controller or extension.

40. In which order does SalesForce execute events upon saving a record?

Before Triggers; Validation Rules; After Triggers; Assignment Rules; Workflow Rules; Commit

Validation Rules; Before Triggers; After Triggers; Workflow Rules; Assignment Rules; Commit

Before Triggers; Validation Rules; After Triggers; Workflow Rules; Assignment Rules; Commit

Validation Rules; Before Triggers; After Triggers; Assignment Rules; Workflow Rules; Commit

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41. Which two queries can a developer use in a visual force controller to protect against SOQL injection Vulnerabilities? Choose 2 answers

String qryName = '%' + String.enforceSecurityChecks(name)+ '%'; String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);

String qryName = '%' + name '%'; String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);

String qryName = '%' + String.escpaeSingleQuotes(name)+ '%'; String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);

String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);

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

Apex class

Adobe Flash

JavaScript

Documentation

43. A developer wants to handle the click event for a lightning: button component.

The on click attribute for the component references a JavaScript function in which resource in the component bundle?

Helper.js

Handler.js

Controller.js

Renderer.js

44. Which type of code represents the Model in the MVC architecture on the Force.com platform?

A Controller Extension method that uses SOQL to query for a list of Account records

Custom JavaScript that processes a list of Account records.

A list of Account records returned from a Controller Extension method

A Controller Extension method that saves a list of Account records

45. What are two features of Heroku Connect? Choose 2 answers

Displaying data from an external data store via External Objects.

Real Time Sync between Salesforce and Postgres

Bidirectional syncs, allowing data to be written into Salesforce

Near Real Time Sync between Heroku Postgres and Salesforce

46. A developer has the following code:try {List nameList;Account a;String s = a.Name;nameList.add(s);} catch (ListException le ) {System.debug(' List Exception ');} catch (NullPointerException npe) {System.debug('NullPointer Exception ');} catch (Exception e) {System.debug(' Generic Exception ');}

What message will be logged?

List Exception

NullPointer Exception

Generic Exception

No message is logged

47. Which two statements are true about using the @testSetup annotation in an Apex test class? (Choose two.)

The @testSetup annotation cannot be used when the @isTest(SeeAllData=True) annotation is used.

Test data is inserted once for all test methods in a class.

Records created in the @testSetup method cannot be updates in individual test methods.

The @testSetup method is automatically executed before each test method in the test class is executed.

48. A developer created a helper class with a method that can be called from Visualforce pages, web services, triggers, and of even anonymous code. When the method is called from a trigger, the developer needs to execute logic that should not be executed If the method Is called from anywhere else.

How can the developer determine if the code Is executed in a trigger context?

Check if System.executionContext ==’Trigger’.

Use the executeOnTrigger annotation on the method definition.

Check if Trigger.isExecuting ==true

Check if Trigger.newMap !=null.

49. A platform developer at Universal Containers needs to create a custom button for the Account object that, when clicked, will perform a series of calculations and redirect the user to a custom Visualforce page.

Which three attributes need to be defined with values in the <apex:page> tag to accomplish this? (Choose three.)

action

renderAs

standardController

readOnly

extensions

50. A developer is creating a Visualforce page that allows users to create multiple Opportunities. The developer is asked to verify the current user's default Opportunity record type, and set certain default values based on the record type before inserting the record.

How can the developer find the current user's default record type?

Use the Schema.userInfo.Opportunity.getDefaultRecordType() method.

Create the opportunity and check the opportunity.recordType before inserting, which will have the record ID of the current user's default record type

Query the Profile where the ID equals userInfo.getProfileID() and then use the profile.Opportunity.getDefaultRecordType() method.

Use Opportunity.SObjectType.getDescribe().getRecordTypeInfos() to get a list of record types, and iterate trought them until isdefaultRecordTypeMapping() is true.

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51. Which type of code represents the Model in the MVC architecture when using Apex and Visualforce pages?

A Controller Extension method that saves a list of Account records

Custom JavaScript that processes a list of Account records

A list of Account records returned from a Controller Extension method

A Controller Extension method that uses SOQL to query for a list of Account records

52. In Lightning component framework, which resource can be used to fire events? Choose 2 answers.

Third-party Javascript code

Javascript controller actions

Visualforce controller actions

Third-party web service code

53. Which feature should a developer use to update an inventory count on related Product records when the status of an Order is modified to indicate it is fulfilled?

Process Builder process

Lightning component

Visualforce page

Workflow rule

54. What is a valid statement about Apex classes and interfaces? Choose 2 answers:

The default modifier for a class is private.

Exception classes must end with the word exception.

A class can have multiple levels of inner classes.

The default modifier for an interface is private.

55. A developer considers the following snippet of code: Boolean isOK; integer x; String theString = 'Hello'; if (isOK == false && theString == 'Hello') { x = 1; } else if (isOK == true && theString =='Hello') { x = 2; } else if (isOK != null && theString == 'Hello') { x = 3; } else { x = 4; }

Based on this code, what is the value of x?

56. 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'; }

57. A reviewer is required to enter a reason in the comments field only when a candidate is recommended to be hired.

Which action can a developer take to enforce this requirement?

Create a required Visualforce component.

Create a formula field.

Create a required comments field.

Create a validation rule.

58. In a single record, a user selects multiple values from a multi-select picklist.

How are the selected values represented in Apex?

As a List<String> with each value as an element in the list

As a String with each value separated by a comma

As a String with each value separated by a semicolon

As a Set<String> with each value as an element in the set

59. Which three code lines are required to create a Lightning component on a Visualforce page? Choose 3 answers

$Lightning.createComponent

<apex:slds/>

$Lightning.useComponent

$Lightning.use (Missed)

<apex:includeLightning/>

60. A developer runs the following anonymous code block: List<Account> acc = [SELECT Id FROM Account LIMIT 10]; Delete acc; Database.emptyRecycleBin(acc); system.debug(Limits.getDMLStatements()+ ‘, ‘ +Limits.getLimitDMLStatements());

What is the result?

11, 150

150, 2

150, 11

2, 150

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61. An after trigger on the account object performs a DML update operation on all of the child opportunities of an account. There are no active triggers on the opportunity object, yet a "maximum trigger depth exceeded" error occurs in certain situation.

Which two reasons possibly explain the account trigger firing recursively? choose 2 answers

Changes are being made to the account during criteria based sharing evaluation

Changes are being made to the account during an unrelated parallel save operation

Changes to opportunities are causing cross-object workflow field updates to be made on the account

Changes to opportunities are causing roll-up summary fields to update on the account

62. A developer is creating an application to track engines and their parts. An individual part can be used in different types of engines.

What data model should be used to track the data and to prevent orphan records?

Create a junction object to relate many engines to many parts through a master-detail relationship

Create a lookup relationship to represent how each part relates to the parent engine object.

Create a master-detail relationship to represent the one-to-many model of engines to parts.

Create a junction object to relate many engines to many parts through a lookup relationship

63. 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 accomlpished? choose 2 answers

Download an unmanaged package from the appexchange that provides customizable mass edit, update and delete functionality

Configure the user interface and enable both inline editing enhanced lists

Download a managed package from the appexchange that provides customizable enhanced list views and buttons

Create a new visual force page and apex controller for the list view that provides mass edit,update and delete functionality

64. Universal Containers wants to back up all of the data and attachments in its Salesforce org once month.

Which approach should a developer use to meet this requirement?

Use the Data Loader command line.

Create a Schedulable Apex class.

Schedule a report.

Define a Data Export scheduled job.

65. A company has a custom object named Region. Each account in salesforce can only be related to one region at a time, but this relationship is optional.

Which type of relantionship should a developer use to relate an account to a region?

Parent-child

Master-detail

Hierarchical

Lookup

66. A developer needs to confirm that a Contact trigger works correctly without changing the organization's data.

What should the developer do to test the Contact trigger?

Use the New button on the Salesforce Contacts Tab to create a new Contact record.

Use the Open execute Anonymous feature on the Developer Console to run an 'insert Contact' DML statement

Use Deploy from the VSCode IDE to display an 'insert Contact' Apex class.

Use the Test menu on the Developer Console to run all test classes for the Contact trigger

67. When a Task is created for a Contact, how can a developer prevent the task from being included on the Activity Timeline of the Contact's Account record?

In Activity Settings, uncheck Roll up activities to a contact's primary account.

By default, tasks do not display on the Account Activity Timiline.

Use Process Builder to create a process to set the Task Account field to blank.

Create a Task trigger to set the Account field to NULL

68. What are three considerations when using the @InvocableMethod annotation in Apex? Choose 3 answers

A method using the @InvocableMethod annotation must define a return value.

A method using the @InvocableMethod annotation can have multiple input parameters.

A method using the @InvocableMethod annotation must be declared as static (Missed)

A method using the @InvocableMethod annotation can be declared as Public or Global. (Missed)

Only one method using the @InvocableMethod annotqation can be defined per Apex class. (Missed)

69. A custom exception "RecordNotFoundException" is defined by the following code of block.public class RecordNotFoundException extends Exception()which statement can a developer use to throw a custom exception? Choose 2 answers

Throw new RecordNotFoundException("problem occured");

Throw new RecordNotFoundException();

throw RecordNotFoundException("problem occured");

Throw RecordNotFoundException();

70. A developer creates a custom controller and a custom Visualforce page by using the code block below:

public class MyController {

public String myString {

get {

if (myString == null) { myString = 'a';

}

return myString;

} private set; } public string getMyString (){ return 'getMyString';

} public string getStringMethod () {

if (myString == null) {

myString = 'b';

} return myString;

}

} <apex:page controller = "MyController">

</apex:page>

{!StringMethod}, {!myString}, {!myString}

What can the user expect to see when accessing the custom page?

A, a, a

B, b, b

A, b, getMyString

B, a, getMyString

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71. The account object has a custom percent field, rating, defined with a length of 2 with 0 decimal places. An account record has the value of 50% in its rating field and is processed in the apex code below after being retrieved from the database with SOQL public void processaccount(){ decimal acctscore = acc.rating__c * 100; }

What is the value of acctscore after this code executes?

500

5000

72. Cloud Kicks Fitness, an ISV Salesforce partner, is developing a managed package application. One of the application modules allows the user to calculate body fat using the apex class, Bodyfat, and its method, calculateBodyfat(). The product owner wants to ensure this method is accessible by the consumer of the application when developing customizer outside the ISV's package namespace.

Which approach should a developer take to ensure calculateBodyFat() is accessible outside the package namespace?

Declare the class and method using the global access modifier.

Declare the class as public and use the global access modifier on the method.

Declare the class as public and use the public access modifier on the method.

Declare the class and method using the public access modifier.

73. Which action can a developer take to reduce the execution time of the following code?

List<account> allaccounts = [select id from account]; list<account> allcontacts = [select id, accountid from contact]; for (account a :allaccounts){ for (contact c:allcontacts){ if(c.accountid = a.id){ //do work } } }

Use a map <id,contact> for allaccounts

Add a group by clause to the contact SOQL

Put the account loop inside the contact loop

Create an apex helper class for the SOQL

74. Which query should a developer use to obtain the Id and Name of all the Leads, Accounts, and Contacts that have the company name "Universal Containers"?

IND 'Universal Containers' IN Name Fields RETURNING lead(id, name), account(id,name), contact(id,name)

SELECT lead(id, name), account(id, name), contact(id,name) FROM Lead, Account, Contact WHERE Name = 'Universal Containers'

FIND 'Universal Containers' IN CompanyName Fields RETURNING lead(id,name), account (id,name), contact(id,name)

SELECT Lead.id, Lead. Name, Account.id, Account.Name, Contact.Id, Contact. Name FROM Lead, Account, Contact WHERE CompanyName = 'Universal Containers'

75. Which two statements can a developer use to throw a custom exception of type MissingFieldValueException? Choose 2 answers.

Throw Exception (new MissingFieldValueException());

Throw (MissingFieldValueException, 'Problem occurred');

Throw new MissingFieldValueException();

Throw new MissingFieldValueException ('Problem occurred');

76. A developer has JavaScript code that needs to be called by controller functions in multiple Aura components by extending a new abstract component.

Which resource in the abstract Aura component bundle allows the developer to achieve this?

helper.js

controllers

superRender.js

renderer.js

77. A developer has the following class and trigger code public class insurancerates {public static final decimal smokercharge = 0.01; } trigger contacttrigger on contact (before insert){ insurancerates rates = new insurancerates(); decimal basecost=xxx; }

Which code segment should a developer insert at the xxx to set the basecost variable to the value of the class variable smokercharge?

Rates.smokercharge

Contacttrigger.insurancerates.smokercharge

Insurancerates.smokercharge

Rates.getsmokercharge()

78. Universal Containers wants Opportunities to be locked from editing when reaching the Closed/Won stage.

Which two strategies should a developer use to accomplish this? (Choose two.)

Use a Visual Workflow.

Use a validation rule.

Use the Process Automation Settings.

Use a Trigger.

79. What should a developer working in a sandbox use to exercise a new test Class before the developer deploys that test production? Choose 2 answers

The REST API and ApexTestRun method

The Apex Test Execution page in Salesforce Setup.

The Test menu in the Developer Console.

The Run Tests page in Salesforce Setup.

80. What is the easiest way to verify a user before showing them sensitive content?

Sending the user a SMS message with a passcode.

Calling the generateVerificationUrl method in apex.

Sending the user an Email message with a passcode.

Calling the Session.forcedLoginUrl method in apex.

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81. A company wants a recruiting app that models candidates and interviews; displays the total number of interviews on each candidate record; and defines security on interview records that is independent from the security on candidate records.

What would a developer do to accomplish this task? Choose 2 answers

Create a roll -up summary field on the Candidate object that counts Interview records.

Create a master -detail relationship between the Candidate and Interview objects.

Create a lookup relationship between the Candidate and Interview objects.

Create a trigger on the Interview object that updates a field on the Candidate object.

82. The values 'High', 'Medium', and 'Low' are Identified as common values for multiple picklist across different object.

What is an approach a developer can take to streamline maintenance of the picklist and their values, while also restricting the values to the ones mentioned above?

Create the Picklist on each object and use a Global Picklist Value Set containing the Values.

Create the Picklist on each object as a required field and select "Display values alphabeticaly, not in the order entered".

Create the Picklist on each object and select "Restrict picklist to the values defined in the value set".

Create the Picklist on each and add a validation rule to ensure data integrity.

83. What is a capability of a StandardSetController?Choose 2 answers

It allows pages to perform mass updates of records

It allows pages to perform pagination with large record sets

It enforces field-level security when reading large record sets

It extends the functionality of a standard or custom controller

84. developer created this Apex trigger that calls MyClass .myStaticMethod: trigger myTrigger on Contact(before insert) ( MyClass.myStaticMethod(trigger.new, trigger.oldMap); } The developer creates a test class with a test method that calls MyClass.mystaticMethod, resulting in 81% overall code coverage.

What happens when the developer tries to deploy the trigger and two classes to production, assuming no other code exist?

The deployment fails because the Apex trigger has no code coverage.

The deployment fails because no assertions were made in the test method.

The deployment passes because the Apex code has required (>75%) code coverage.

The deployment passes because both classes and the trigger were included in the deployment.

85. Which two platform features align to the Controller portion of MVC architecture? (Choose two.)

Process Builder actions

Workflow rules

Standard objects

Date fields

86. 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?

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

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

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

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

87. What is considered the primary purpose for creating Apex tests?

To confirm all classes and triggers compile successfully

To ensure every use case of the application is covered by a test

To confirm every trigger in executed at least once

To guarantee at least 50% of code is covered by unit tests before it is deployed

88. 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.

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

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

Use Test.getStandardPricebbokId()to get the standard Pricebook I

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

89. A developer is asked to set a picklist field to ‘Monitor’ on any new Leads owned by a subnet of Users.

How should the developer implement this request?

Create an after insert Lead trigger.

Create a before insert Lead trigger.

Create a Lead Workflow Rule Field Update.

Create a Lead formula field.

90. Which standard field needs to be populated when a developer inserts new Contact records programmatically?

Accountld

Name

LastName

FirstName

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91. A developer created a Visualforce page and custom controller to display the account type field as

value of the account type field is not being displayed correctly on the page.

Assuming the custom controller is property referenced on the Visualforce page, what should the developer do to correct the problem?

Add a getter method for the actType attribute.

Change theAccount attribute to public.

Convert theAccount.Type to a String.

Add with sharing to the custom controller.

92. Which three process automations can immediately send an email notification to the owner of an Opportunity when its Amount is changed to be greater than $10,000? Choose 3 answers

Workflow Rule (Missed)

Flow Builder

Approval Process (Missed)

Escalation Rule

Process Builder (Missed)

93. A Visual Flow uses an apex Action to provide additional information about multiple Contacts, stored in a custom class, contactInfo.

Which is the correct definition of the Apex method that gets additional information?

@InvocableMethod(label='Additional Info') public List<ContactInfo> getInfo(List<Id> contactIds) { /*implementation*/ }

@InvocableMethod(label='additional Info') public static ContactInfo getInfo(Id contactId) { /*implementation*/ }

@invocableMethod(label)='Additional Info') public static List<ContactInfo> getInfo(List<Id> contactIds) { /*Implementation*/ }

@InvocableMethod(Label='additional Info') public ContactInfo(Id contactId) { /*implementation*/ }

94. A developer working on a time management application wants to make total hours for each timecard available to applications users. A timecard entry has a Master-Detail relationship to a timecard.

Which approach should the developer use to accomplish this declaratively?

A visual force page that calculates the total number of hours for a timecard and displays it on the page.

An Apex trigger that uses an Aggregate Query to calculate the hours for a given timecard and stores it in a custom field.

A Roll-up Summary field on the Timecard Object that calculates the total hours from timecard entries for that timecard.

A Process Builder process that updates a field on the timecard entry is created.

95. An org has different Apex Classes that provide Account -related functionality. After a new validation rule is added to the object, many of the test methods fail.

What can be done to resolve the failures and reduce the number of code changes needed for future validation rules? Choose 2 answers:

Create a method that creates valid Account records, and call this method from within test methods.

Create a method that loads valid Account records from a Static Resource, and call this method within test methods.

Create a method that performs a callout for a valid Account record, and call this method from within test methods.

Create a method that queries for valid Account records, and call this method from within test methods.

96. Universal Containers stores the availability date on each Line Item of an Order and Orders are only shipped when all of the Line Items are avaible.

Which method should be used to calculate the estimated ship date for an Order?

Use a CEILING formula on each of the Latest availability date fields.

Use a DAYS formula on each of the availability date fields and a COUNT Roll-Up Summary field on the Order.

Use a LATEST formula on each of the latest availability date fields.

Use a Max Roll-Up Summary field on the Latest availability date fields.

97. What can used to delete components from production?

A change set deployment with the delete option checked

An ant migration tool deployment with destructive changes xml file and the components to delete in the package .xml file

A change set deployment with a destructive changes XML file

An ant migration tool deployment with a destructive changes XML file and an empty package .xml file

98. What is an important consideration when developing in a multi-tenant environment?

Governor limits prevent tenants from impacting performance in multiple orgs on the same instance.

Unique domain names take the place of namespaces for code developed for multiple orgs on multiple instances.

Polyglot persistence provides support for a global, multilingual user base in multiple orgs on multiple instances.

Org-wide data security determines whether other tenants can see data in multiple orgs on the same instance.

99. A developer wants to import 500 Opportunity records into a sandbox.

Why should the developer choose to use data Loader instead of Data Import Wizard?

Data Loader runs from the developer's browser.

Data Import Wizard does not support Opportunities.

Data Loader automatically relates Opportunities to Accounts.

Data Import Wizard can not import all 500 records.

100. 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?

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

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

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

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

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101. When a user edits the Postal Code on an Account, a custom Account text field named "Timezone" must be update based on the values in a PostalCodeToTimezone__c custom object.

How should a developer implement this feature?

Build an Account Assignment Rule.

Build an Account custom Trigger.

Build an account Approval Process

Build an Account Workflow Rule.

102. Which three methods help ensure quality data?

Create a lookup filter

Adding an error to a field in before trigger

Sending an email alert using a workflow rule

Handling an exception in Apex

Adding a validation rule

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

For (List L : AccountList) {…}

For (Account theAccount : AccountList){…}

For(AccountList){…}

For (Integer i=0; i<AccountList. Size();i++){…}

104. A developer needs to update an unrelated object when a record gets saved.

Which two trigger types should the developer create?

After insert

After update

Before update

Before insert

105. Which data structure is returned to a developer when performing a SOSL search?

A list of lists of sObjects.

A map of sObject types to a list of sObjects

A map of sObject types to a list oflists of sobjects

A list of sObjects.

106. What are two considerations for deciding to use a roll-up summary field? Choose 2 answer's partner.

Roll-up summary can be performed on formula fields, but if their formula contains an #Error result, it may affect the summary value.

Roll-up summary fields do not cause validation rules on the parent object unless that object is edited separately.

Roll-up cannot be performed on formula fields.

Roll-up cannot be performed on formula fields that use cross-object references or on-the-fly calculations such as NOW().

107. What are two benefits of the Lightning Component framework? (Choose two.)

It simplifies complexity when building pages, but not applications.

It provides an event-driven architecture for better decoupling between components.

It promotes faster development using out-of-box components that are suitable for desktop and mobile devices.

It allows faster PDF generation with Lightning components.

108. In which two trigger types can a developer modify the new sObject records that are obtained by the trigger.new context? Choose 2 answers

After insert

After update

Before update

Before insert

109. How can a developer use a Set<Id> to limit the number of records returned by a SOQL query?

Reference the Set in the LIMIT clause of the query

Pass the query results as an argument in a reference to the Set.containsAll() method.

Pass the Set as an argument in a reference to the Database.query() method

Reference the Set in the WHERE clause of the query

110. Which three options can be accomplished with formula fields? (Choose three.)

Generate a link using the HYPERLINK function to a specific record.

Display the previous value for a field using the PRIORVALUE function.

Determine if a datetime field value has passed using the NOW function.

Return and display a field value from another object using the VLOOKUP function.

Determine which of three different images to display using the IF function.

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111. A newly hired developer discovers that there are multiple triggers on the case object.

What should the developer consider when working with triggers?

Developers must dictate the order of trigger execution.

Trigger execution order is based on creation date and time.

Unit tests must specify the trigger being tested.

Trigger execution order is not guaranteed for the same sObject.

112. A developer wants to display all of the picklist entries for the Opportunity StageName field and all of the available record types for the Opportunity object on a Visualforce page.

Which two actions should the developer perform to get the available picklist values and record types in the controller? Choose 2 answers.

Use Schema.RecordTypeInfo returned by RecordType.SObjectType.getDescribe().getRecordTypeInfos().

Use Schema.PicklistEntry returned by Opportunity.SObjectType.getDescribe().getPicklistValues().

Use Schema.PicklistEntry returned by Opportunity.StageName.getDescribe().getPicklistValues().

Use Schema.RecordTypeInfo returned by Opportunity.SObjectType.getDescribe().getRecordTypeInfos().

113. Using the Schema Builder, a developer tries to change the API name of a field that is referenced in an Apex test class.

What is the end result?

The API name is not changed and there are no other impacts.

The API name of the field and the reference in the test class is changed.

The API name of the field is changed, and a warning is issued to update the class.

The API name of the field and the reference in the test class is updated.

114. The Sales Management team hires a new intern. The intern is not allowed to view Opportunities, but needs to see the Most Recent Closed Date of all child Opportunities when viewing an Account record.

What would a developer do to meet this requirement?

Create a trigger on the Account object that queries the Close Date of the most recent Opportunities.

Create a Workflow rule on the Opportunity object that updates a field on the parent Account.

Create a formula field on the Account object that performs a MAX on the Opportunity Close Date field.

Create a roll-up summary field on the Account object that performs a MAX on the Opportunity Close Date field.

115. A developer observes that an Apex test method fails in the Sandbox. To identify the issue, the developer copies the code inside the test method and executes it via the Execute Anonymous tool in the Developer Console. The code then executes with no exceptions or errors.

Why did the test method fail in the sandbox and pass in the Developer Console?

The test method has a syntax error in the code.

The test method relies on existing data in the sandbox.

The test method is calling an @future method.

The test method does not use System.runAs to execute as a specific user.

116. Which standard field is required when creating a new contact record?

LastName

Name

AccountId

FirstName

117. On which object can an administrator create a roll-up summary field?

Any object that is on the master side of a master-detail relationship.

Any object that is on the parent side of a lookup relationship.

Any object that is on the detail side of a master-detail relationship.

Any object that is on the child side of a lookup relationship.

118. A developer has the following requirements:

Calculate the total amount on an Order.

Calculate the line amount for each Line Item based on quantity selected and price.

Move Line Items to a different Order if a Line Item is not stock.

Which relationship implementation supports these requirements?

Line Items has a Master-Detail field to Order and the Master can be re-parented.

Line Item has a Lookup field to Order and there can be many Line Items per Order

Order has a Lookup field to Line Item and there can be many Line Items per Order.

Order has a Master-Detail field to Line Item and there can be many Line Items per Order.

119. A visual force interface is created for Case Management that includes both standard and custom functionality defined in an Apex class called myControllerExtension.

The visual force page should include which <apex:page> attribute(s) to correctly implement controller functionality?

StandardController = "case" and extensions =" myControllerExtension"

Extensions=" myControllerExtension"

Controller=" myControllerExtension"

Controller = "case" and extensions =" myControllerExtension"

120. How would a developer change the field type of a custom field on the Account object from string to an integer?

Make the changes in the developer console, and then the change will automatically be reflected in the Apex code.

Mate the change in the declarative UI, then update the field type to an integer field in the Apex code.

Make the change in the declarative UI, an then the change will automatically be reflected in the Apex code.

Remove all references in the code, make the change in the declarative UI, and restore the references with the new type.

Page 13 of 14

121. A developer declared a class as follow.

public class wysiwyg { // Properties and methods including DML }

Which invocation of a class method will obey the organization-wide defaults and sharing settings for the running user in the Salesforce Organization?

An Apex Trigger that invokes a helper method in this class

A Visualforce page with an Apex controller that invokes a method in this class

A user on an external system that has an API call into Salesforce that invokes a method in this class

A developer using the Developer Console that invokes a method in this class from the execute anonymous window

122. 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?

@AuraEnabled(cacheable=true) public static List<Opportunity> search(String term) { /* implementation*/ }

@AuraEnabled(cacheable=true) public List<Opportunity> search(String term) { /*implementation*/ }

@AuraEnabled(cacheable=false) public static List<Opportunity> search(String term) { /*implementation*/ }

@AuraEnabled(cacheable=false) public List<Opportunity> search(String term) { /*implementation*/ }

123. A developer needs to create a Visualforce page that will override the standard Account edit button. The page will be used to validate the account's address using a SOQL query. The page will also allow the user to make edits to the address.

Where would the developer write the Account address verification logic?

In a Standard Extension.

In a Standard Controller.

In a Custom Controller.

In a Controller Extension.

124. Which scenario is invalid for execution by unit tests?

Executing methods for negative test scenarios

Loading the standard Pricebook ID using a system method

Loading test data in place of user input for Flows.

Executing methods as different users.

125. Which one do you like?

What should a developer consider for an environment that has over 10,000 Case records?

The transaction will fail due to exceeding the governor limit.

The try/catch block will handle any DML exceptions thrown.

The transaction will succeed and changes will be committed.

The try/catch block will handle exceptions thrown by governor limits.

126. What is the result of the following code block?

Integer x = 1; Integer Y = 0; While (x < 10) {Y++;}

An error occurs

Y = 9

Y = 10

X = 0

127. Universal Containers implemented a private sharing model for the Account object. A custom Account search tool was developed with Apex to help sales representatives find accounts that match multiple criteria they specify. Since its release, users of the tool report they can see Accounts they do not own.

What should the developer use to enforce sharing permission for the currently logged-in user while using the custom search tool?

A Use the schema describe calls to determine if the logged-in users has access to the Account object.

B. Use the without sharing keyword on the class declaration.

C. Use the User Info Apex class to filter all SOQL queries to returned records owned by the logged-in user.

D. Use the with sharing keyword on the class declaration.

128. What is the debug output of the following Apex code?

Decimal theValue;

System.debug (theValue);

0.0

null

Undefined

129. 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

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

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

Use the @ReadOnly annotation to bypass the number of rows returned by a SOQ

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

130. A developer created a visual force page using a custom controller that calls an apex helper class. A method in the helper class hits a governor limit.

What is the result of the transaction?

The helper class creates a savepoint and continues

All changes in the transaction are rolled back

All changes made by the custom controller are saved

The custom controller calls the helper class method ag

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131. A developer wrote a workflow email alert on case creation so that an email is sent to the case owner manager when a case is created. When will the email be sent?

After Committing to database.

Before Trigger execution.

After Trigger execution.

Before Committing to database.

132. A developer has the following query: Contact c = [SELECT id, firstname, lastname, email FROM Contact WHERE lastname = 'Smith'];

What does the query return if there is no Contact with the last name 'Smith'?

A contact initialized to null.

An error that no rows are found.

An empty List of Contacts.

A Contact with empty values.

133. Which approach should a developer use to add pagination to a Visualforce page?

A StandardController

The Action attribute for a page

The extensions attribute for a page

A StandardSetController

134. A developer wrote a unit test to confirm that a custom exception works properly in a custom controller, but the test failed due to an exception being thrown.

Which step should the developer take to resolve the issue and properly test the exception?

Use try/catch within the unit test to catch the exception.

Use the finally bloc within the unit test to populate the exception.

Use the database methods with all or none set to FALS

Use Test.isRunningTest() within the custom controller.

135. A developer creates a custom controller and custom Visualforce page by using the following code block:public class myController {public String myString;public String getMyString() {return 'getmyString';}public String getStringMethod1() {return myString;}public String getStringMethod2() {if (myString == null)myString = 'Method2';return myString;}}{!myString}, {!StringMethod1},

{!StringMethod2}, {!myString}

What does the user see when accessing the custom page?

GetMyString , , Method2 , getMystring

, , Method2 , getMyString

, , Method2,

GetMyString , , ,

136. A developer creates an Apex Trigger with the following code block:List<Account> customers = new List<Account>();For (Order__c o: trigger.new){Account a = [SELECT Id, Is_Customer__c FROM Account WHERE Id = :o.Customer__c];a.Is_Customer__c = true;customers.add(a);}Database.update(customers, false);The developer tests the code using Apex Data Loader and successfully loads 10 Orders. Then, the developer loads 150 Orders.

How many Orders are successfully loaded when the developer attempts to load the 150 Orders?

150

100

137. A developer has an integer variable called maxAttempts. The developer meeds to ensure that once maxAttempts is initialized, it preserves its value for the lenght of the Apex transaction; while being able to share the variable's state between trigger executions.

How should the developer declare maxAttempts to meet these requirements?

Declare maxattempts as a member variable on the trigger definition.

Declare maxattempts as a private static variable on a helper class

Declare maxattempts as a constant using the static and final keywords

Declare maxattempts as a variable on a helper class

Salesforce Certification DEX-450 Exam Dumps

Salesforce Certification DEX-450 Exam Dumps

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