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Latest Salesforce DEX-450 Free Exam Questions | SPOTO

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Question #1
A developer created a trigger on a custom object. This custom object also has some dependent pick lists. According to the order of execution rules, which step happens first?
A. Old values are overwritten with the new record values
B. JavaScript validation is run in the browser,
C. System validation is run for maximum field lengths,
D. The original record Is loaded from the database
View answer
Correct Answer: D
Question #2
What is the debug output of the following Apex code? Decimal theValue; System.debug (theValue);
A. 0
B. null
C. Undefined
D. 0
View answer
Correct Answer: B
Question #3
What is a valid statement about Apex classes and interfaces? Choose 2 answers:
A. The default modifier for a class is private
B. Exception classes must end with the word exception
C. A class can have multiple levels of inner classes
D. The default modifier for an interface is private
View answer
Correct Answer: BD
Question #4
How many Accounts will be inserted by the following block of code?
A. 100
B. 0
C. 500
D. 150correct
View answer
Correct Answer: D
Question #5
Which three resources in an Aura component can contain JavaScript functions? Choose 3 answers
A. Renderercorrect
B. Controllercorrect
C. style
D. Helpercorrect
E. Design
View answer
Correct Answer: ABD
Question #6
Which three Salesforce resources can be accessed from a Lightning web component? Choose 3 answers
A. Static resourcescorrect
B. All external libraries
C. SVG resourcescorrect
D. Third-party web components
E. Content asset filescorrect
View answer
Correct Answer: ACE
Question #7
A developer created a lightning component name accountList.cmp that display a list of Accounts. Client-side logic that is executed when a user hovers over an account in the list should be stored in which bundle member?
A. AccountListHelper
B. AccountListRenderer
C. AccountList
D. AccountList
View answer
Correct Answer: C
Question #8
Which two statements are true about Apex code executed in Anonymous Blocks? Choose 2 answers
A. Successful DML operations are automatically committed
B. All DML operations are automatically rolled back
C. The code runs with the permissions of the user specified in the runAs() statement
D. The code runs with the permissions of the logged user
E. The code runs in system mode having access to all objects and fields
View answer
Correct Answer: AD
Question #9
How can a developer get all of the available record types for the current user on the case object?
A. Use SOQL to get all cases
B. Use describesobjectresult of the case object
C. Use case
D. Use describefieldresult of the case
View answer
Correct Answer: D
Question #10
While writing an Apex class, a developer wants to make sure that all functionality being developed is handled as specified by the requirements. Which approach should the developer use to be sure that the Apex class is working according to specifications?
A. Include a savepoint and pacabase
B. Include a try/catch block to the Apex class
C. Run the code in an Execute Anonymous block in the Developer Console
D. Create a test class to execute the business logic and run the test in the Developer Console
View answer
Correct Answer: A
Question #11
Which component is available to deploy using Metadata API? Choose 2 answers
A. Case Layout
B. Account Layout
C. Case Feed Layout
D. ConsoleLayout
View answer
Correct Answer: AB
Question #12
Which type of information is provided by the Checkpoints tab in the Developer Console? (Choose 2)
A. Namespace
B. Time
C. Exception
D. Debug Statement
View answer
Correct Answer: AB
Question #13
What are three characteristics of change set deployments? Choose 3 answers Sending a change set between two orgs requires a deployment connection.
A. Change sets can deploy custom settings data
B. Change sets can only be used between related organizations
C. Deployment is done in a one-way, single transaction
D. Sending a change set between two orgs requires a deployment connection
E. Change sets can be used to transfer records
View answer
Correct Answer: BCD
Question #14
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. A visualforce page that calculates the total number of hours for a timecard and displays it on the page
B. An Apex trigger that uses an Aggregate Query to calculate the hours for a given timecard and stores it in a custom field
C. A Roll-up Summary field on the Timecard Object that calculates the total hours from timecard entries for that timecard
D. A Process Builder process that updates a field on the timecard entry is created
View answer
Correct Answer: C
Question #15
What should be used to create scratch orgs?
A. Sandbox refresh
B. Salesforce CLI
C. Developer Console
D. Workbench
View answer
Correct Answer: B
Question #16
What is the result of the following code block ? Integer x = 1;Integer Y = 0;While(x < 10){Y++;}
A. An error occurs
B. Y = 9
C. Y = 10
D. X = 0
View answer
Correct Answer: A
Question #17
Which control statement should a developer use to ensure that a loop body executes at least once?
A. For(variable : list_or_set){}
B. While (condition){}
C. For(init_stmt;exit_cond;increment){}
D. Do {} while (cond)
View answer
Correct Answer: D
Question #18
A developer is asked to prevent anyone other than a user with Sales Manager profile from changing the Opportunity Status to Closed Lost if the lost reason is blank. Which automation allows the developer to satisfy this requirement in the most efficient manner?
A. An approval process on the Opportunity object
B. A record trigger flow on the Opportunity object
C. An Apex trigger on the Opportunity object
D. An error condition formula on a validation rule on Opportunitycorrect
View answer
Correct Answer: D
Question #19
A Hierarchy Custom Setting stores a specific URL for each profile in Salesforce. Which statement can a developer use to retrieve the correct URL for the current user'sprofile and display this on a Visualforce Page?
A. {!$Setup
B. {!$Setup
C. {!$Setup
D. {!$Setup
View answer
Correct Answer: B
Question #20
Which two statements are true about using the @testSetup annotation in an Apex test class? Choose 2 answers
A. a method defined with the @tetestSetup annotation executes once for each test method in the test class and counts towards system limits
B. Records created in the test setup method cannot be updated in individualtest methods
C. In a test setup method, test data is inserted once and made available for all test methods in the test class
D. The ?testSetup annotation is not supported when the cg5lsTest(SeeAIIData=True) annotation is used
View answer
Correct Answer: ACD
Question #21
What is an example of a polymorphic lookup field in Salesforce?
A. The Parentid field on the standard Account object
B. A custom field, Link__c, on the standard Contact object that looks up to an Account or a Campaign
C. The Whatld field on the standard Event objectcorrect
D. The LeadId and Contactid fields on the standard Campaign Member object
View answer
Correct Answer: C
Question #22
How would a developer determine if a CustomObject__c record has been manually shared with the current user in Apex?
A. By querying the role hierarchy
B. By calling the isShared() method for the record
C. By querying CustomObject__Share
D. By calling the profile settings of the current user
View answer
Correct Answer: C
Question #23
Which resource can be included in a Lightning Component bundle?Choose 2 answers
A. Apex class
B. Adobe Flash
C. JavaScript
D. Documentation
View answer
Correct Answer: CD
Question #24
A developer needs to make a custom Lightning Web Component available in the Salesforce Classic user interface. Which approach can be used to accomplish this?
A. Embed the Lightning Web Component is a Visualforce Component and add directly to the page layout
B. Wrap the Lightning Web Component in an Aura Component and surface the Aura Component as a Visualforce tab
C. Use a Visualforce page with a custom controller to invoke the Lightning Web Component using a call to an Apex method
D. Use the Lightning Out JavaScript library to embed the Lightning Web Component in a Visualforce page and add to the page layout
View answer
Correct Answer: D
Question #25
To which primitive data type in Apex is a currency field atomically assigned?
A. Integer
B. Decimal
C. Double
D. Currency
View answer
Correct Answer: B
Question #26
How would a developer change the field type of a custom field on the Account object from string to an integer?
A. Make the changes in the developer console, and then the change will automatically be reflected in the Apex code
B. Mate the change in the declarative UI, then update the field type to an integer field in the Apex code
C. Make the change in the declarative UI, an then the change will automatically be reflected in the Apex code
D. Remove all references in the code, make the change in the declarative UI, and restore the references with the new type
View answer
Correct Answer: D
Question #27
A Next Best Action strategy uses an Enhance 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) B) C) D)
A. Option A
B. Option B
C. Option C
D. Option Dcorrect
View answer
Correct Answer: D
Question #28
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?
A. Create a junction object to relate many engines to many parts through a master-detail relationship
B. Create a lookup relationship to represent how each part relates to the parent engine object
C. Create a master-detail relationship to represent the one-to-many model of engines to parts
D. Create a junction object to relate many engines to many parts through a lookup relationship
View answer
Correct Answer: A
Question #29
What is the return data type when ApexPages.currentPage().getParameters() is used to retrieve URL parameters from a visualforce controller?
A. Map
B. List
C. Enum
D. String[]
View answer
Correct Answer: A
Question #30
Which statement results in an Apex compiler error?
A. Map lmap = new Map([Select ID from Lead Limit 8]);
B. Date d1 = Date
C. Integer a=5, b=6, c, d = 7;
D. List s = List{‘a’,‘b’,‘c’);
View answer
Correct Answer: D

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