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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Weight	Objectives
Integration	15%	- Platform Events and Change Data Capture - REST and SOAP web services (Apex callouts) - External Services and Connect REST API - Named Credentials and authentication
Logic and Process Automation	22%	- Asynchronous Apex (Batch, Queueable, Future, Scheduled) - Invocable Actions and Platform Events - Dynamic Apex and SOQL/SOSL - Advanced Apex programming
Testing, Debugging, and Deployment	15%	- Deployment tools (SFDX, Metadata API) - Test data strategies and mocking - Debugging and performance profiling - Apex unit testing best practices
User Interface	18%	- Aura Components - Visualforce advanced controllers - Lightning Web Components (LWC) advanced features - Lightning Data Service
Architecture	18%	- Governor limits and bulkification - Apex Enterprise Patterns - Design patterns and Apex trigger frameworks - Namespace and package management
Data Modeling	12%	- Large data volumes considerations - External objects and data sources - Advanced object relationships and data modeling

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q176-Q181):

NEW QUESTION # 176
A developer is working on an integration between Salestorce and an external system. The integration requires sending a large amount of data to the external systern, which can cause long response times and timeouts.
To optimize the performance and avoid timeouts, which technique should be used?

A. Use a chained batch Apex to split the data into smaller batches.
B. Implement an asynchronous callout using the Continuation class,
C. Use the @future annotation to make the callout asynchronous.
D. Increase the timeout limit in the callout options,

Answer: B

Explanation:
Implementing an asynchronous callout using the Continuation class is the optimal solution to handle long response times and avoid timeouts in Salesforce. It allows the Apex code to make a long-running request to an external service and free up the thread to serve other requests.

NEW QUESTION # 177
An environment has two Apex triggers: an after-update trigger on Account and an after-update trigger on Contact.
The Account after-update trigger fires whenever an Account's address is updated, and it updates every associated Contact with that address. The Contact after-update trigger fires on every edit, and it updates every Campaign Member record related to the Contact with the Contact's state.
Consider the following: A mass update of 200 Account records' addresses, where each Account has 50 Contacts. Each Contact has one Campaign Member. This means there are 10,000 Contact records across the Accounts and 10,000 Campaign Member records across the contacts.
What will happen when the mass update occurs?

A. The mass update will fail, since the two triggers fire in the same context, thus exceeding the number of records processed by DML statements.
B. There will be no error and all updates will succeed, since the limit on the number of records processed by DML statements was not exceeded.
C. There will be no error, since each trigger fires within its own context and each trigger does not exceed the limit of the number of records processed by DML statements.
D. The mass update of Account address will succeed, but the Contact address updates will fail due to exceeding number of records processed by DML statements.

Answer: A

Explanation:
In this scenario, the governor limit for DML statements (150 DML operations and 10,000 DML rows per transaction) will be exceeded because the updates will cascade across related objects, significantly multiplying the number of records processed.
Apex Developer Guide

NEW QUESTION # 178
A company has a custom object, Order__c, that has a custom picklist field, Status__c, with values of `"New', `"In Progress', or `"Fulfilled' and a lookup field, Contact__c, to Contact.
Which SOQL query will return a unique list of all the Contact records that have no `"Fulfilled' Orders?

A. SELECT Contact__c FROM Order__c WHERE Id NOT IN (SELECT Id FROM Order__c Where Status__c = 'Fulfilled')
B. SELECT Id FROM Contact WHERE Id NOT IN (SELECT Contact__c FROM Order__c WHERE Status__c = 'Fulfilled')
C. SELECT Id FROM Contact WHERE Id NOT IN (SELECT Id FROM Order__c WHERE Status__c = 'Fulfilled')
D. SELECT Contact__c FROM Order__c WHERE Status__c <> 'Fulfilled'

Answer: B

Explanation:
The correct SOQL query to return a unique list of Contact records that have no 'Fulfilled' Orders is one that selects Ids from the Contact object where the Contact Id is not in the set of Contact Ids related to 'Fulfilled' Orders. This is done by a subquery that selects the Contact__c field from the Order__c records where the Status__c is 'Fulfilled'.

NEW QUESTION # 179
Universal Containers has an Apex trigger on Account that creates an Account Plan record when an Account is marked as a Customer.
Recently a record-triggered flow was added so that whenever an Account is marked as a Customer, a "Customer Since' date field is updated with today's date. Since the addition of the flow, two Account Plan records are created whenever the Account is marked as a Customer.
What might cause this to happen?

A. The Apex trigger is not bulk safe and calls insert inside of a for loop.
B. The flow is configured to evaluate when a record is created and every time it is edited.
C. The flow is configured to use an "Update Records' element.
D. The Apex trigger does not use a static variable to ensure it only fires once.

Answer: C

Explanation:
If a flow is configured to evaluate when a record is created and every time it's edited, and an Apex trigger also fires upon the same conditions, it could result in duplicate operations. In this case, two Account Plan records are created because both the flow and the trigger execute upon the Account being marked as a Customer.

NEW QUESTION # 180
A developer needs to implement a system audit feature that allows users, assigned to a custom profile named "Auditors", to perform searches against the historical records in the Account object. The developer must ensure the search is able to return history records that are between 6 and 12 months old.
Given the code below, which select statement should be inserted below as a valid way to retrieve the Account History records ranging from 6 to 12 months old?

A)

B)

C) D)

A. Option A
B. Option C
C. Option B
D. Option D

Answer: C

Explanation:
Given the code snippet, the correct query to retrieve Account History records between 6 and 12 months old would be the one that includes a WHERE clause filtering records where the CreatedDate is greater than or equal to initialDate and less than or equal to endDate. Option B's statement does this correctly by using the >= and <= operators to define the range between initialDate (which is set to today's date minus 12 months) and endDate (set to today's date minus 6 months). Options A, C, and D either use incorrect comparison operators or compare against the wrong variables, resulting in an incorrect data set being returned.
Reference
SOQL Date Formats and Date Literals: SOQL and SOSL Reference Guide

NEW QUESTION # 181
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