Salesforce Plat-Dev-301 Real Exam Questions Guaranteed Updated Dump from Actualtests4sure [Q25-Q44]

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Salesforce Plat-Dev-301 Real Exam Questions Guaranteed Updated Dump from Actualtests4sure

Verified Pass Plat-Dev-301 Exam in First Attempt Guaranteed

Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Performance and Data Management	18%	– Optimize queries and handle large data volumes – Governor limits optimization and best practices – Data modeling and complex data operations
Topic 2: User Interface Development	20%	– Build complex Lightning Web Components and Aura Components – Optimize UI performance and usability – Implement advanced Visualforce functionality
Topic 3: Testing, Debugging, and Deployment	20%	– Deployment strategies, CI/CD, and change management – Advanced testing strategies and test frameworks – Debugging and error handling across layers
Topic 4: Logic, Process Automation, and Integration	27%	– REST/SOAP API, Platform Events, and external integrations – Asynchronous Apex: future, queueable, batch, scheduled – Advanced Apex programming and transaction management – Complex business logic and automation design
Topic 5: Advanced Developer Fundamentals	15%	– Work with localization, multi-currency, and global features – Design and maintain scalable, reusable code – Apply security best practices in development

QUESTION 25
What is the best practice to initialize a Vizualforce page in a test class?

Use controller. currentPage. setPage (MyTastfage) ;

Use Test. setCurrentPage (Page. MyTeatPage);

Use Test. currantPage .getParamatars put (MyTaestPaga) ;

Use Test. setCurrentPage MyTestPags;

QUESTION 26
A company has many different unit test methods that create Account records as part of their data setup. A new required field was added to the Account and now all of the unit tests fail.
What is the optimal way for a developer to fix the issue?

Add the required field to the data setup for all of the unit tests.

Add a before insert trigger on Account to set the value of the required field,

Change the required field to be a validation rule that excludes the System Administrator profile.

Create a TestDataFactory class that serves as the single place to create Accounts for unit tests and set the required field there.

QUESTION 27
A Salesforce org has more than 50,000 contacts. A new business process requires a calculation that aggregates data from all of these contact records. This calculation needs to run once a day after business hours.
which two steps should a developer take to accomplish this?
Choose 2 answers
A)

B)

C)

D)

Option A

Option B

Option C

Option D

QUESTION 28
Consider the above trigger intended to assign the Account to the manager of the Account’s region, Which two changes should a developer make in this trigger to adhere to best practices?

Use a Map to cache the results of the Region._c query by Id.

Move the Region__c query to outside the loop.

Use a Map accountMap instead of List accountList.

Remove the last line updating accountList as It Is not needed.

QUESTION 29
A developer needs to send Account records to an external system for backup purposes. The process must take a snapshot of Accounts as they are saved and then make a callout to a RESTful web service. The web service can only receive, at most, one record per call.
What should a developer do to implement these requirements?

Implement the Queveable interface.

Implement platform events.

Expose an Apex class as e web service.

Create a future method.

QUESTION 30
A developer creates a Lightning web component to allow a Contact to be quickly entered. However, error messages are not displayed.

Which component should the developer add to the form to display error messages?

apex:messages

lightning-messages

lightning-error

aura:messages

QUESTION 31
A corporation has many different Salesforce orgs, with some different objects and some common objects, and wants to build a single Java application that can create, retrieve, and update common object records in all of the different orgs.
Which method of integration should the application use?

SOAP API with the Partner WSDL

Apex REST Web Service

SOAP API with the Enterprise WSDL

Metadata APT

QUESTION 32
A Salesforce developer is hired by a multi-national company to build a custom Lightning application that shows employees their employment benefits and earned commissions over time. The application must acknowledge and respect the user’s locale context for dates, times, numbers, currency, and currency symbols.
When using Aura components, which approach should the developer implement to ensure the Lightning application complies with the user’s locale?

Use the $User global variable to retrieve the user preferences.

Use the $Label global value provider.

Use the $Lacale value provider to retrieve the user preferences.

Create a Hierarchical custom setting to store user preferences.

QUESTION 33
A developer is debugging an Apex-based order creation process that has a requirement to have three savepoints, SP1, SP2, and 5P3 {created in order), before the final execution of the process.
During the final execution process, the developer has a routine to roll back to SP1 for a given condition. Once the condition is fixed, the code then calls 2 roll back to SP3 to continue with final execution. However, when the roll back to SP3 is called, a Funtime error occurs.
Why does the developer receive a runtime error?

SP3 became invalid when SP1 was rolled back.

The developer has too many DML statements between the savepoints.

The developer used too many savepoints in one trigger session.

The developer should have called SF2 before calling SP3.

QUESTION 34
Which two queries are selective SOQL queries and can be used for a large data set of 200,000 Account records?
Choose 2 answers

SELECT Id FROM Account WHERE Name LIKE ‘!-NULL

SELECT Id FRCM Account WHERE Name != ‘ ‘

SELECT Id FRCM Account WHEP Name IN (List of Names) AND Customer_Number_c= ‘ValueA

SELECT Id FROM Account WHERE II IK (List of Account Ida)

QUESTION 35
A developer created the following test method:

The developer org has five accounts where the name starts with “Test”. The developer executes this test in the Developer Console. After the test code runs, which statement is true?

The test will fail.

There will be no accounts where the name starts with “Test”.

There will be five accounts where the name starts with “Test”.

There will be six accounts where the name starts with “Test”.

QUESTION 36
Given the following code:

Assuming there were 10 Contacts and five Accounts created today, what is the expected result?

System.QueryException: Too many DML Statement errors on Contact

System.QueryException: List has more than one row for Assignment on Account

Systemn.LimitException: Too many SOQL Queries on Account

System.LimitException: Too many SOQL Queries on Contact

QUESTION 37
Which use case can be performed only by using asynchronous Apex?

Querying tens of thousands of records

Making a call to schedule a batch process to complete in the future

Calling a web service from an Apex trigger

Updating a record after the completion of an insert

QUESTION 38
Universal Containers is using a custom Salesforce application to manage customer support cases. The support team needs to collaborate with external partners to resolve certain cases. However, they want to control the visibility and access to the cases shared with the external partners. Which Salesforce feature can help achieve this requirement?

Role hierarchy

Criteria-based sharing rules

Apex managed sharing

Sharing sets

QUESTION 39
Which statement is considered a best practice for writing bulk safe Apex triggers?

Add records to collections and perform DML operations against these collections.

Add LIMIT 50000 to every SOQL statement.

Perform all DML operations from within a future method.

Use the Database methods with allorNone set to £21s= instead of DML statements.

QUESTION 40
A developer is developing a reusable Aura component that will reside on an sObject Lightning page with the following HTML snippet:

How can the component”5 controller get the context of the Lightning page that the sObject is on without requiring additional test coverage?

Add force:hasSobjectName to the implements attribute.

Use the gerSubjectType method in an Apex class.

Set the sObject type as a component attribute.

Create a design attribute and configure via App Builder.

QUESTION 41
An org has a requirement that addresses on Contacts and Accounts should be normalized to a company standard by Apex code any time that they are saved.
What is the optimal way to implement this?

Apex triggers on Contact and Account that call a helper class to normalize the address

Apex trigger on Account that calls the Contact trigger to normalize the address

Apex triggers on Contact and Account that normalize the address

Apex trigger on Contact that calls the Account trigger to normalize the address

QUESTION 42
A company accepts orders for customers in their enterprise resource planning (ERP) system that must be integrated into Salesforce as order_ c records with a lookup field to Account. The Account object has an external ID field, ENF_Customer_ID_c.
What should the Integration use to create new Oder_c records that will automatically be related to the correct Account?
A)

B)

C)

D)

Option A

Option B

Option C

Option D

QUESTION 43
A developer created 2 class that implements the Queueable Interface, as follows:

As part of the deployment process, the developer is asked to create a corresponding test class. Which two actions should the developer take to successfully execute the test class? Choose 2 answers

Implement seeAllData=True to ensure the Queueable job is able to run in bulk mode.

Ensure the running user of the test class has, at I the View All permission on the Order object.

Enclose System.enqueueJob(new OrderQueueableJob ()] within Tess. and Test .stopTest (1.

Implement Test. isRunningTest() to prevent chaining jobs during test execution.

QUESTION 44
A company has a native iOS order placement app that needs to connect to Salesforce to retrieve consolidated information from many different objects in a JSON format.
Which is the optimal method to implement this in Salesforce?

Apex REST web service

Apex SOAP web service

Apex SOAP callout

Apex REST callout