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NEW QUESTION # 26
A developer is developing a reusable Aura component that will reside on an sObject Lightning page with the following HTML snippet:
Caura: component implements-"forcethaaRecordid, flexipage:availableForAllPageTypes">
<div>Hello!</div>
</aura:component>
How can the component's controller get the context of the Lightning page that the sobject is an without requiring additional best coverage?
- A. Create a design attribute and configure via App Builder
- B. Add force:hasSobjectName to the implements attribute
- C. Set the object type as a component attribute.
- D. Use the getSObjectType () method in an Apex class
Answer: B
NEW QUESTION # 27
Universal Containers ne=ds to integrate with several external systems. The process Is Initiated when a record Is created in Salesforce, The remote systems do not require Salesforce to wait for a response before continuing.
What is the recommended best solution to accomplish this?
- A. Qutbound message
- B. Trigger with HTTP callout
- C. PushTopic event
- D. Platform event
Answer: A
Explanation:
The recommended best solution to accomplish the requirement is to use Outbound Messaging. Outbound Messaging is a way of sending notifications from Salesforce to an external system, using SOAP messages over HTTP or HTTPS. Outbound Messaging is triggered by a workflow rule, and can include up to 100 notifications per message. Outbound Messaging does not require Salesforce to wait for a response before continuing, as it uses the fire-and-forget pattern, which means that the message is sent and no acknowledgment is expected. Outbound Messaging also supports the guaranteed delivery of messages, as it uses a queue and a retry mechanism to resend the messages that are not delivered successfully. To use Outbound Messaging, the developer should create an outbound message action in the workflow rule, and specify the endpoint URL of the external system, the fields to include in the message, and the user to send as. The developer should also create a workflow rule that evaluates the criteria for sending the notification, and add the outbound message action to the rule. The external system should expose a SOAP web service that can receive and acknowledge the outbound messages. Using a PushTopic event would not be the best solution, as a PushTopic event is a type of Platform Event that represents a change in Salesforce data, such as a record creation, update, delete, or undelete. A PushTopic event can be subscribed by Apex triggers, flows, processes, Lightning web components, or external systems. However, a PushTopic event requires the external system to use the CometD protocol and the Streaming API to subscribe to the event channel, which may not be compatible with the external system's technology. A PushTopic event also does not guarantee the delivery of messages, as it uses the publish-and-subscribe pattern, which means that the message is sent and no acknowledgment is required. Using a trigger with HTTP callout would not be the best solution, as a trigger with HTTP callout is a way of invoking an external web service or API from Apex code, using HTTP or HTTPS requests. A trigger with HTTP callout requires Salesforce to wait for a response before continuing, as it uses the request-and-response pattern, which means that the request is sent and a response is expected. A trigger with HTTP callout also does not support the guaranteed delivery of messages, as it does not use a queue or a retry mechanism to resend the requests that are not delivered successfully. Using a Platform event would not be the best solution, as a Platform event is a type of Platform Event that represents a business event that occurs in the system, such as a change in data, a system error, or a user action. A Platform event can be published by Apex code, flows, processes, or APIs, and can be subscribed by Apex triggers, flows, processes, Lightning web components, or external systems. However, a Platform event requires the external system to use the CometD protocol and the Streaming API to subscribe to the event channel, which may not be compatible with the external system's technology. A Platform event also does not guarantee the delivery of messages, as it uses the publish-and-subscribe pattern, which means that the message is sent and no acknowledgment is required. Reference: [Outbound Messaging], [PushTopic Event], [Invoking Callouts Using Apex], [Platform Events Basics]
NEW QUESTION # 28
Which interface needs to be implemented by a Lightning Component so that it may be displayed in modal dialog by clicking a button on a Lightning Record page?
- A. Force: lightningQuickAction
- B. Lightning:editAction
- C. Force:lightningEditAction
- D. Fightning:quickAction
Answer: D
NEW QUESTION # 29
1 Contact con = new Contact ( LastName =fSmith', Department = fAdminT)
2 insert con;
3 Contact insertedContact=[select Name from Contact where id=icon.Id];
4 Savepoint sp_admin = Database.setSavepoint();
5 con.Department = fHRf;
6 update con;
7 Database.rollback(sp_admin);
8 System.debug(Limits.getDmlStatements 0);
Given the following code, what value will be output in the logs by line #8?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 30
Recently a Salesforce org's integration failed because it exceeded the number of allowed API calls in a
24-hour period. The integration handles a near real-time, complex insertion of data into Salesforce. The flow of data is as follows: The integration looks up Contact records with a given email address and, if found, the integration adds a Task to the first matching Contact it finds. If a match is not found, the integration looks up Lead records with a given email address and, if found, the integration adds a Task to the first matching Lead it finds. If a match is not found, the integration will create a Lead and a Task for that newly created Lead. What is one way in which the integration can stay near real-time, but not exceed the number of allowed API calls in a 24-hour period?
- A. Use the REST API as well as the SOAP API to effectively double the API calls allowed in a 24-hour period.
- B. Create an Inbound Message that, using Flow, can do all of the logic the integration code was doing.
- C. write a custom Apex web service that, given an email address, does all of the logic the integration code was doing.
- D. Create several Apex InboundEmailHandlers to accept calls from the third-party system, thus bypassing the API limits.
Answer: D
NEW QUESTION # 31
Part of a custom Lightning Component displays the total number of Opportunities in the org, which is in the millions. The Lightning Component uses an Apex Controller to get the data it needs. What is the optimal way for a developer to get the total number of Opportunities for the Lightning Component?
- A. SUM() SOQL aggregate query on the Opportunity object
- B. SOQL for loop that counts the number of Opportunities records
- C. Apex Batch job that counts the number of Opportunity records
- D. COUNT() SOQL aggregate query on the Opportunity object
Answer: D
NEW QUESTION # 32
A page throws an 'Attempt to dereference a null object' error for a Contact.
What change in the controller will fix the error?
- A. Declare a static final Contact at the top of the controller.
- B. (o] Use a condition in the getter to return a new Contact if it is null.
G Change the setter's signature to return a Contact. - C. Change the getter's signature to be static Contact.
Answer: B
Explanation:
The best way to fix the error is to use a condition in the getter to return a new Contact if it is null. This way, the developer can avoid the attempt to dereference a null object error, which occurs when the developer tries to access a property or a method of a null object. By checking if the sObject attribute is null, and returning a new Contact instance if it is, the developer can ensure that the sObject attribute is always initialized and can be used in the Visualforce page. Declaring a static final Contact at the top of the controller will not fix the error, as it will not initialize the sObject attribute, and it will also prevent the Contact from being modified. Changing the setter's signature to return a Contact will not fix the error, as it will not affect the getter, and it will also violate the setter's convention, which is to return void. Changing the getter's signature to be static Contact will not fix the error, as it will not initialize the sObject attribute, and it will also prevent the getter from accessing the instance variables of the controller. Reference: [Visualforce Controllers], [Apex Properties], [Apex Developer Guide]
NEW QUESTION # 33
A developer created an Apex class that updates an Account based on input from a Lightning web component.
The update to the Account should only be made if it has not already been registered.
Java
account = [SELECT Id, Is_Registered__c FROM Account WHERE Id = :accountId]; if (!account.Is_Registered__c) { account.Is_Registered__c = true;
// ...set other account fields...
update account;
}
What should the developer do to ensure that users do not overwrite each other's updates to the same Account if they make updates at the same time?
- A. Add a try/catch block around the update.
- B. Include LastModifiedDate in the query to make sure it wasn't recently updated.
- C. Use FOR UPDATE in the SOQL query.
- D. Use upsert instead of update.
Answer: C
Explanation:
In a multi-user environment, a "Race Condition" occurs when two users query the same record at the same time, see that Is_Registered__c is false, and both proceed to update it. To prevent this, developers must implement Row-Level Locking.
In Salesforce SOQL, the FOR UPDATE (Option C) keyword is used for this exact purpose. When a query includes FOR UPDATE, the platform places an exclusive lock on the records returned. If a second transaction attempts to query the same records using FOR UPDATE, it will be forced to wait until the first transaction is completed (either committed or rolled back). If the lock isn't released within 10 seconds, the second transaction throws a QueryException.
By using FOR UPDATE, the first user who executes the query "reserves" the Account. The second user's request will wait, and by the time their query actually executes and retrieves the data, Is_Registered__c will have been updated to true by the first user, thus failing the if (!account.Is_Registered__c) check and preventing a duplicate registration. Option D is a manual "optimistic locking" approach that is less reliable than the platform's native locking mechanism. Options A and B do not address the timing issue of the initial check.
NEW QUESTION # 34
Code must have X% overall code coverage
- A. X = 100
- B. X = 75
- C. X = 65
- D. X = 50
Answer: B
NEW QUESTION # 35
Which use case can be performed only by using asynchronous Apex?
- A. Querying tens of thousands of records
- B. Calling a web service from an Apex trigger
- C. Making a call to schedule a batch process to complete in the future
- D. Updating a record after the completion of an insert
Answer: B
Explanation:
Making a callout from an Apex trigger is not allowed synchronously; hence, such callouts must be performed in an asynchronous context. The only way to perform this within the Salesforce platform is by using asynchronous Apex, such as @future methods or Queueable Apex.References: Apex Developer Guide - Asynchronous Apex
NEW QUESTION # 36
Consider the following code snippet:
A developer created the following test class to provide the proper code coverage for the snippet above:
However, when the test runs, no data is returned and the assertion fails.
Which edit should the developer make to ensure the test class runs successfully?
- A. Enclose the method call within Test. startbest i) and @Test_stopTast |).
- B. Implement the without sharing keyword in the searchFeaturs Apex class.
- C. Implement the seeAllData=true attribute in the @1sTest annotation.
- D. Implement the setFixedSearchResult= method in the test class.
Answer: D
Explanation:
To ensure that the test class for a search functionality in Salesforce runs successfully, the developer should use the Test.setFixedSearchResults() method. This allows the test to specify the records that are returned by the search, ensuring that the search behavior is predictable and that the assertion can be properly evaluated.
References: Apex Developer Guide - Testing SOSL Queries
NEW QUESTION # 37
Within the System.Limit class, what would you call to get the total limit you can call in a single transaction?
- A. getLimit [typeOfLirr.it] -> (Ex. getLin~.it DY.LSt aterr.ents () )
- B. get[typeOfLimit] -> (Ex. getDMLStatements())
Answer: A
NEW QUESTION # 38
Refer to the code below:
A developer is building this Aura component to display information about top Opportunities in the org.
Which three code changes must be made for the component to work?
Choose 3 answers
- A. Add the static keyword to the Apex method.
- B. Add the AuraEnabled annotation to the Apex method.
- C. Set the controller in the component markup.
- D. Add the RemoteAction annotation to the Apex method.
- E. Get the controller action with cmp.get(''oppController.getTopOpps").
Answer: A,B,C
NEW QUESTION # 39
A developer is building a Lightning web component that searches
for Contacts. The component must communicate the search
results to other unrelated Lightning web components, that are in
different DOM trees, when the search completes.
What should the developer do to implement the communication?
- A. Fire a custom component event.
- B. Publish a message on a message channel.
- C. Publish an event on an event channel.
- D. Fire an application event.
Answer: B
Explanation:
For communication between unrelated Lightning web components that are in different DOM trees, the most suitable approach is to use the Lightning Message Service (LMS). This service allows components to communicate with each other using a message channel, which is particularly useful when the components are not in the same containment hierarchy. By publishing and subscribing to messages on a message channel, components can exchange data and notifications, which is ideal for the scenario described.
References:
Lightning Web Components Developer Guide - Communicate Across the DOM with Lightning Message Service
NEW QUESTION # 40
Universal Containers needs to integrate with their own, existing, internal custom web application. The web application accepts JSON payloads, resizes product images, and sends the resized images back to Salesforce.
What should the developer use to implement this integration?
- A. A platform event that makes a callout to the web application
- B. An Apex trigger that calls an @future method that allows callouts
- C. A flow that calls an @future method that allows callouts
- D. A flow with an outbound message that contains a session ID
Answer: B
Explanation:
In a scenario where an integration requires making a callout to an external web application, Apex is often used to perform callouts. The callout must be asynchronous when being made from a trigger because a callout cannot be made from a synchronous operation like a trigger due to the possibility of long-running transactions.
Option A (An Apex trigger that calls an @future method that allows callouts) is correct because it enables the trigger to perform an asynchronous callout to the external web application, which is necessary for sending JSON payloads and receiving the resized images.
Options B, C, and D do not fit the requirement as well as option A because platform events and flows are typically not used for making direct callouts to external systems in the context described.
References:
Apex Developer Guide: Apex Web Services and Callouts
NEW QUESTION # 41
The Account object has a field, Audit_Code_c, that is used to specify what type of auditing the Account needs and a Lookup to User, zudizar_c, that is the assigned auditor. When an Account is initially created, the user specifies the Audit_Code c. Each User in the org has a unique text field, Audit_Code _e, that is used to automatically assign the correct user to the Account's Auditor_c field.
What should be changed to most optimize the code's efficiency?
Choose 2 answers
- A. Build a Map<string, List<Account>> of audit code to accounts.
- B. Add an initial SOQL query to get all distinct audit codes.
- C. Add a WHERE clause to the SOQL query to filter on audit codes.
- D. Build a Map<Id, List<string>>of Account Id to audit codes.
Answer: A,C
Explanation:
To optimize the code's efficiency when assigning users to the Account's Auditor field based on the audit code, the following changes should be considered:
B: Building a map of audit code to accounts (Map<string, List<Account>>) would allow for efficient grouping of accounts by their audit code. This would make it easier to process accounts with the same audit code in a single operation, reducing the number of SOQL queries and DML operations needed.
D: Adding a WHERE clause to the SOQL query to filter on audit codes would limit the number of records returned by the query. This means the code only processes relevant User records with matching audit codes, thereby reducing the processing time and memory consumption.
Option A is not recommended because querying for all distinct audit codes without any context of the accounts being processed could be inefficient. Option C is less effective because it would involve creating a mapping of Account Ids to audit codes, which doesn't aid in the efficient assignment of auditor to accounts.
References:
Salesforce Developer Guide on Maps: Apex Maps
Salesforce Developer Guide on SOQL Queries: SOQL SELECT Syntax
NEW QUESTION # 42
A developer has a test class that creates test data before making a mock call-out, but now receives a you have uncommitted work pending. Please commit or callout before calling out error.
What step should be taken to resolve the error?
- A. Ensure both the insertion and mock callout occur after the Test.startTest().
- B. Ensure the records are inserted before the Test.startTest() statement and the mock callout after the Test.startTest().
- C. Ensure the records are inserted before the Test.startTest() statement and the mock callout occurs within a method annotated with StestSetup.
- D. Ensure both the insertion and mock callout occur after the Test.stopTest().
Answer: B
NEW QUESTION # 43
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?
- A. Add a before insert trigger on Account to set the value of the required field,
- B. Add the required field to the data setup for all of the unit tests.
- C. Change the required field to be a validation rule that excludes the System Administrator profile.
- D. Create a TestDataFactory class that serves as the single place to create Accounts for unit tests and set the required field there.
Answer: D
Explanation:
The optimal way to fix the failing unit tests after adding a new required field to the Account object is to create a TestDataFactory class that serves as a centralized place to create Accounts for unit tests. This class would include the new required field, ensuring that all unit tests have the necessary data setup.
References: Apex Developer Guide - Using a Test Data Factory
NEW QUESTION # 44
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Salesforce PDII certification is regarded as one of the most prestigious certifications for developers in the Salesforce ecosystem. Platform Developer II certification demonstrates the developer's expertise in developing scalable, secure, and maintainable applications on the Salesforce platform. Platform Developer II certification also validates the developer's ability to work with a variety of Salesforce technologies, including Apex, Visualforce, Lightning Components, and more.
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