Salesforce DEX-450 Exam Sample Questions | SPOTO

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Question #1

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"?

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

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

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

D. SELECT Lead

View answer

Correct Answer: A

Question #2

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

View answer

Correct Answer: AC

Question #3

What are three techniques that a developer can use to invoke an anonymous block of code? Choose 3 answers

A. Create a visualforce page that uses a controller class that is declared without sharing

B. Type code into the developer console and execute it directly

C. Type code into the execute anonymous tab in the force

D. Use the SOAP API to make a call to execute anonymous code

E. Create and execute a test method that does not specify a runas() call

View answer

Correct Answer: BCD

Question #4

A developer created a new after insert trigger on the Lead object that creates Task records for each Lead. After deploying to production, an existing outside integration that inserts Lead records in batches to Salesforce is occasionally reporting total batch failures being caused by the Task insert statement. This causes the integration process in the outside system to stop, requiring a manual restart. Which change should the developer make to allow the integration to continue when some records in a batch c

A. Deactivate the trigger before the integration runs

B. Remove the Apex class from the integration user's profile,

C. Use a try-catch block after the insert statement,

D. Use the Database method with allOrNone set to false

View answer

Correct Answer: D

Question #5

Which trigger event allows a developer to update fields in the Trigger.new list without using an additional DML statement?Choose 2 answers

A. Before insert

B. Before update

C. After update

D. After insert

View answer

Correct Answer: AB

Question #6

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. Includeon the Visualforce page

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

D. Perform the DML using the Database

View answer

Correct Answer: B

Question #7

A developer needs to create a baseline set of data (Accounts, Contacts, Products, Assets) for an entire suite of tests allowing them to test independent requirements various types of Salesforce Cases. Which approach can efficiently generate the required data for each unit test?

A. Add @IsTest(seeAllData=true) at the start of the unit test class

B. Create test data before test

C. Use @TestSetup with a void method

D. Create a mock using Stub API

View answer

Correct Answer: C

Question #8

A developer can use the debug log to see which three types of information? Choose 3 answers

A. Resource usage and limits

B. Database changes

C. User login events

D. HTTP callout to external systems

E. Actions triggered by time-based workflow

View answer

Correct Answer: BDE

Question #9

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

A. Throw new RecordNotFoundException("problem occured");

B. Throw new RecordNotFoundException();

C. throw RecordNotFoundException("problem occured");

D. Throw RecordNotFoundException();

View answer

Correct Answer: AB

Question #10

A method is passed a list of generic sObjects as a parameter. What should the developer do to determine which object type (Account, Lead, or Contact, for example) to cast each sObject?

A. Use the first three characters of the sObject ID to determine the sObject type

B. Use the getSObjectType method on each generic sObject to retrieve the sObject token

C. Use the getSObjectName method on the sObject class to get the sObject name

D. Use a try - catch construct to cast the sObject into one of the three sObject types

View answer

Correct Answer: B

Question #11

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 query performance?

A. Setup Menu

B. Developer Consolecorrect

C. Visual Studio Code IDE

D. AppExchange

View answer

Correct Answer: B

Question #12

A developer must create a Lightning component that allows user to input Contact record information to create a Contact record, including a Salary__c custom field. What should the developer use, along with a lightning-record-edit-form, so that Salary__c field functions as a currency input and is only viewable and editable by users that have the correct field level permissions on Salary__c?

View answer

Correct Answer: A

Question #13

A developer created a child Lightning web component nested inside a parent Lightning web component. The parent component needs to pass a string value to the child component. In which two ways can this be accomplished? Choose 2 answers

A. The parent component can invoke a public method in the child component

B. The parent component can use a public property to pass the data to the child component,correct

C. The parent can use the Apex controller class to send data to the child component

D. The parent component can use a custom event to pass the data to the child component

View answer

Correct Answer: AB

Question #14

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?

A. Declare the class and method using the global access modifier

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

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

D. Declare the class and method using the public access modifier

View answer

Correct Answer: A

Question #15

Which tool can deploy destructive changes to apex classes in production?

A. Workbench

B. Salesforce setup

C. Change sets

D. Developer Console

View answer

Correct Answer: A

Question #16

A Next Best Action strategy uses an Enchance Element that invokes an Apex method to determine a discount level for a Contact, based on a number of factors. What is the correct definition of the Apex method?

A. @InvocableMethod global static ListRecommendation getLevel(Listinput) { /*implementation*/ }

B. @InvocableMethod global static List> getLevel(Listinput) { /*implementation*/ }

C. @InvocableMethod global List> getLevel(Listinput) { /*implementation*/ }

D. @InvocableMethod global Recommendation getLevel (ContactWrapper input) { /*implementation*/ }

View answer

Correct Answer: B

Question #17

A platform developer needs to implement a declarative solution that will display the most recent closed won date for all opportunity records associated with an account. Which field is required to achieve this declaratively?

A. Roll-up summary field on the opportunity object

B. Cross-object formula field on the account object

C. Roll-up summary field on the account object

D. Cross-object formula field on the opportunity object

View answer

Correct Answer: C

Question #18

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 Listsearch(String term) { /* implementation*/ }

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

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

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

View answer

Correct Answer: A

Question #19

Which two queries can a developer use in a visualforce controller to protect against SOQL injection Vulnerabilities? Choose 2 answers

A. String qryName = '%' + String

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

C. String qryName = '%' + String

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

View answer

Correct Answer: AD

Question #20

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?

A. 5

B. 50

C. 500

D. 5000

View answer

Correct Answer: C

Question #21

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

A. After insert

B. After update

C. Before update

D. Before insert

View answer

Correct Answer: CD

Question #22

Which two practices should be used for processing records in a trigger? Choose 2 answers

A. Use @future methods to handle DML operations

B. Use a Map to reduce the number of SOQL calls

C. Use (callout=true) to update an external system

D. Use a Set to ensure unique values in a query filter

View answer

Correct Answer: BD

Question #23

A developer needs to update an unrelated object when a record gets saved. Which two trigger types should the developer create?

A. After insert

B. After update

C. Before update

D. Before insert

View answer

Correct Answer: CD

Question #24

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 thetag to ensure the Visualforce page can be embedded in a page layout?

A. Action="AccountId"

B. StandardController="Account"

C. Extensions="AccountController"

D. Controller="Account"

View answer

Correct Answer: B

Question #25

The sales team at universal container would like to see a visual indicator appear on both account and opportunity page layout to alert salespeople when an account is late making payments or has entered the collections process. What can a developer implement to achieve this requirement without having to write custom code?

A. Workflow rule

B. Formula field

C. Roll-up summary field

D. Quick action

View answer

Correct Answer: B

Question #26

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?

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

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

C. The Account should have a Lookup relationship to the Invoice

D. The Invoice should have a Lookup relationship to the Account Previous

View answer

Correct Answer: B

Question #27

What must the Controller for a Visualforce page utilize to override the Standard Opportunity view button?

A. The StandardSetController to support related lists for pagination

B. The Opportunity StandardController for pre -built functionality

C. A callback constructor to reference the StandardController

D. A constructor that initializes a private Opportunity variable

View answer

Correct Answer: B

Question #28

Where are two locations a developer can look to find information about the status of asynchronous or future cals? Choose 2 answers

A. Apex Flex Queue (Missed)

B. Apex Jobs (Missed)

C. Paused Flow Interviews component

D. Time-Based Workflow Monitor

View answer

Correct Answer: AB

Question #29

A developer needs to create an audit trail for records that are sent to the recycle bin. Which type of trigger is most appropriate to create?

A. Before delete

B. After undelete

C. After delete

D. Before undelete

View answer

Correct Answer: B

Question #30

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?

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

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

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

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

View answer

Correct Answer: A

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