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Salesforce DEV-450 Exam Questions and Answers, Salesforce Certified Platform Developer I | SPOTO

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Question #1
A developer Is asked to create a Visualforce page that lists the contacts owned by the current user. This component will be embedded In a Lightning page. Without writing unnecessary code, which controller should be used for this purpose?
A. Standard list controller
B. Standard controllercorrect
C. Lightning controller
D. Custom controller
View answer
Correct Answer: B
Question #2
A developer must modify the following code snippet to prevent the number of SOQL queries issued from exceeding the platform governor limit. public class without sharing OpportunityService( public static List getOpportunityProducts(Set opportunityIds){ List oppLineItems = new List(); for(Id thisOppId : opportunityIds){ oppLineItems.addAll([Select Id FROM OpportunityLineItems WHERE OpportunityId = :thisOppId)]; } return oppLineItems; } } The a
A. Use the System
B. Use the System
C. Refector the code above to perform the SOQL query only if the Set of opportunityIds contains less 100 Ids
D. Refactor the code above to perform only one SOQL query, filtering by the Set of opportunityIds
View answer
Correct Answer: B
Question #3
What are three capabilities of the tag when loading JavaScript resources in Aura components? Choose 3 answers
A. Loading files from Documentscorrect
B. One-time loading for duplicate scriptscorrect
C. Specifying loading ordercorrect
D. Loading scripts In parallelcorrect
E. Loading externally hosted scripts
View answer
Correct Answer: ABCD
Question #4
A developer wants to mark each Account in a List as either or Inactive based on the LastModified field value being more than 90 days. Which Apex technique should the developer use?
A. A for loop, with a switch statement inside
B. A Switch statement, with a for loop inside
C. An If/else statement, with a for loop inside
D. A for loop, with an if/else statement insidecorrect
View answer
Correct Answer: D
Question #5
Cloud kicks has a multi-screen flow that its call center agents use when handling inbound service desk calls. At one of the steps in the flow, the agents should be presented with a list of order numbers and dates that are retrieved from an external order management system in real time and displayed on the screen. What should a developer use to satisfy this requirement?
A. An Apex controller
B. An Apex REST classcorrect
C. An outbound message
D. An invocable method
View answer
Correct Answer: B
Question #6
The Job _Application__c custom object has a field that is a master-detail relationship to the Contact object, where the Contact object is the master.As part of a feature implementation, a developer needs to retrieve a list containing all Contact records where the related Account Industry is'Technology', while also retrieving the Contact's Job_Application__c records.Based on the object's relationships, what is the most efficient statement to retrieve the list of Contacts?A)B)C)D)
A. Option A
B. Option B
C. Option C
D. Option D
View answer
Correct Answer: A
Question #7
An org has an existing Flow that creates an Opportunity with an Update Records element. A developer update the Flow to also create a Contact and store the created Contact's ID on the Opportunity. Which update should the developer make in the Flow?
A. Add a new Get Records element
B. Add a new Update Records element
C. Add a new Quick Action element(of type Create)
D. Add a new Create Records element
View answer
Correct Answer: D
Question #8
Refer to the code snippet below: When a Lightning web component is rendered, a list of apportunities that match certain criteria shopuld be retrievved from the database and displayed to the end user. Which three Considerations must the developer implement to make the method available within the Lightning web component? Choose 3 answer
A. The method must specify the (cacheable-trun) attributecorrect
B. The method must specify the (continuation-true) attribute
C. The method must be annotaled with true Invocablemethod annolation
D. The method cannot mutate the result set retrieved from the database
E. The method must be annotated with the AureEnabled annolationcorrect
View answer
Correct Answer: ADE
Question #9
A developer needs to implement a custom SOAP Web Service that is used by an external Web Application. The developer chooses to Include helper methods that are not used by the Web Application In the Implementation of the Web Service Class. Which code segment shows the correct declaration of the class and methods? A) B) C) D)
A. Option A
B. Option B
C. Option Ccorrect
D. Option D
View answer
Correct Answer: C
Question #10
The following automations already exist on the Account object; ? A workflow rule that updates a field when a certain criteria is met ? A custom validation on a field ? A How that updates related contact records A developer created a trigger on the Account object. What should the developer consider while testing the trigger code?
A. The flow may be launched multiple times
B. Workflow rules will fire only after the trigger has committed all DML operations to the database
C. A workflow rule field update will cause the custom validation to run again
D. The trigger may fire multiple times during a transaction
View answer
Correct Answer: D
Question #11
Refer to the following code snippet for an environment has more than 200 Accounts belonging to the Technology' industry: When the code execution, which two events occur as a result of the Apex transaction? When the code executes, which two events occur as a result of the Apex transaction? Choose 2 answers
A. If executed in an asynchronous context, the apex transaction is likely to fall by exceeding the DML governor limitcorrect
B. The Apex transaction succeeds regardless of any uncaught exception and all processed accounts are updated
C. The Apex transaction fails with the following message
D. If executed In a synchronous context, the apex transaction is likely to fall by exceeding the DHL governor limit
View answer
Correct Answer: A
Question #12
The Account object in an organization has a master detail relationship to a child object called Branch. The following automations exist: * Rollup summary fields * Custom validation rules * Duplicate rules A developer created a trigger on the Account object. What two things should the developer consider while testing the trigger code? Choose 2 answers
A. The trigger may fire multiple times during a transaction
B. Duplicate rules are executed once all DML operations commit to the database
C. Rollup summary fields can cause the parent record to go through Save
D. The validation rules will cause the trigger to fire again
View answer
Correct Answer: AC
Question #13
How can a developer check the test coverage of active Process Builder and Flows deploying them in a Changing Set?
A. Use the Flow properties page
B. Use the code Coverage Setup page
C. Use the Apex testresult class
D. Use SOQL and the Tooling APIcorrect
View answer
Correct Answer: D
Question #14
A developer wants to improve runtime performance of Apex calls by caching result on the client. What is the most efficient way to implement this and follow best practices?
A. Decorate the server-side method with @AuraEnabled (total-true)
B. Call the setStoeable () method on the action in the javaScript client-sidecode
C. Decorate the server-side method with @AuraEnabled (cacheable-true
D. Set a ciikie in the browser for use upon return to the page
View answer
Correct Answer: C
Question #15
What are two use cases for executing Anonymous Apex code? Choose 2 answers
A. To delete 15,000 inactive Accounts In a single transaction after a deploymentcorrect
B. To schedule an Apex class to run periodicallycorrect
C. To run a batch Apex class to update all Contactscorrect
D. To add unit test code coverage to an org
View answer
Correct Answer: ABC
Question #16
A developer has identified 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 datadase. Which two techniques should the developer implement as a best practice to ensure transaction control and avoid exceeding governor limits? Choose 2 answers
A. Use partial DML statements to ensure only valid data is committed
B. Use the System,Limit classto monitor the current CPU governor limit consumption
C. Use the Database,Savepoint method to enforce database integrity
D. Use the Reedonly annotation to bypass the number of rows returned by a SOQ
View answer
Correct Answer: ABC
Question #17
Which two types of record access should an administrator grant through sharing rules? (Choose two.)
A. Read/Write/Delete
B. Read/Write
C. Read Only
D. Read/Write/Transfer
View answer
Correct Answer: BC
Question #18
A developer created a trigger on the Account object and wants to test if the trigger is properly bulklfield. The developer team decided that the trigger should be tested with 200 account records with unique names. What two things should be done to create the test data within the unit test with the least amount of code? Choose 2 answers
A. Use the @isTest(isParallel=true) annotation in the test class
B. Use Test
C. Use the @isTest(seeAllData=true) annotation in the test class
D. Create a static resource containing test data
View answer
Correct Answer: ABD
Question #19
Which two events need to happen when deploying to a production org? Choose 2 answers
A. All triggers must have at least 1% test coverage
B. All Apex code must have at least 75% test coverage
C. All triggers must have at least 75% test coverage
D. All test and triggers must have at least 75% test coverage combined
View answer
Correct Answer: AB
Question #20
A custom object Trainer_c has a lookup field to another custom object Gym___c. Which SOQL query will get the record for the Viridian City gym and it's trainers?
A. SELECT Id, (SELECT Id FROM Trainers) FROM Gym_C WHERE Name
B. SELECT Id, (SELECT Id FROM Trainer_c) FROM Gym_c WHERE Name - Viridian City Gym'
C. SELECT ID FROM Trainer_c WHERE Gym__r
D. SELECT Id, (SELECT Id FROM Trainers) FROM Gym_C WHERE Name - Viridian City Gym'
View answer
Correct Answer: A
Question #21
Which scenario is valid for execution by unit tests?
A. Load data from a remote site with a callout
B. Set the created date of a record using a system method
C. Execute anonymous Apex as a different user
D. Generate a Visualforce PDF with geccontentAsPDF ()
View answer
Correct Answer: B
Question #22
Consider the following code snippet: Given the multi-tenant architecture of the Salesforce platform, what Is a best practice a developer should Implement and ensure successful execution of the method?
A. Avoid executing queries without a limit clause
B. Avoid returning an empty List of records
C. Avoid using variables as query filters
D. Avoid performing queries inside for loops
View answer
Correct Answer: D
Question #23
A developer created these three Rollup Summary fields in the custom object, Project_ct, The developer is asked to create a new field that shows the ratio between rejected and approved timesheets for a given project. Which should the developer use to Implement the business requirement in order to minimize maintenance overhead?
A. Record-triggered Flow
B. Formula fieldcorrect
C. Apex Trigger
D. Process Builder
View answer
Correct Answer: B
Question #24
n org has an existing flow that creates an Opportunity with an Update Records element. A developer must update the flow to aiso create a ‘Contact and store the created Contact's 1D on the Opportunity. Which update must the developer make in the flow?
A. Add a new Get Records element
B. Add a new Create Records element
C. Add a new Update Records element
D. Add a new Roll back Records element
View answer
Correct Answer: B
Question #25
Which action may cause triggers to fire?
A. Updates to Feed Itemscorrect
B. Renaming or replacing a picklist entry
C. Changing a user's default division when the transfer division option is checked
D. Cascading delete operations
View answer
Correct Answer: A
Question #26
Which two dashboard components should display data from the summary rows of a report? (Choose two.)
A. Gauge
B. Chart
C. Metric
D. Table
View answer
Correct Answer: BD

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