Changing the Concept of DEX-450 Exam Preparation 2022
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NEW QUESTION 129
A developer creates a custom controller and custom Visualforce page by using the following code block:public class myController {public String myString;public String getMyString() {return 'getmyString';}public String getStringMethod1() {return myString;}public String getStringMethod2() {if (myString == null)myString = 'Method2';return myString;}}{!myString}, {!StringMethod1}, {!StringMethod2}, {!myString}What does the user see when accessing the custom page?
- A. GetMyString , , ,
- B. , , Method2,
- C. GetMyString , , Method2 , getMystring
- D. , , Method2 , getMyString
Answer: C
NEW QUESTION 130
What are two benefits of the Lightning Component framework? (Choose two.)
- A. It promotes faster development using out-of-box components that are suitable for desktop and mobile devices.
- B. It simplifies complexity when building pages, but not applications.
- C. It provides an event-driven architecture for better decoupling between components.
- D. It allows faster PDF generation with Lightning components.
Answer: A,C
NEW QUESTION 131
What are two considerations for deciding to use a roll-up summary field? Choose 2 answer's partner.
- A. Roll-up cannot be performed on formula fields that use cross-object references or on-the-fly calculations such as NOW().
- B. Roll-up summary fields do not cause validation rules on the parent object unless that object is edited separately.
- C. Roll-up cannot be performed on formula fields.
- D. Roll-up summary can be performed on formula fields, but if their formula contains an #Error result, it may affect the summary value.
Answer: A,D
NEW QUESTION 132
A developer needs to join data received from an integration with an external system with parent records in Salesforce. The data set does not contain the Salesforce IDs of the parent records, but it does have a foreign key attribute that can be used to identify the parent.
Which action will allow the developer to relate records in the data model without knowing the Salesforce ID?
- A. Create and populate a custom field on the parent object marked as Unique.
- B. Create a custom field on the child object of type Foreign Key.
- C. Create a custom field on the child object of type External Relationship.
- D. Create and populate a custom field on the parent object marked as an External ID.
Answer: B
NEW QUESTION 133
Which two are phases in the Salesforce Application Event propagation framework? Choose
2 answers
- A. Default
- B. Capture
- C. Bubble
Answer: A,B
NEW QUESTION 134
Which three Salesforce resources can be accessed from a Lightning web component?
Choose 3 answers
- A. SVG resources
- B. Content asset files
- C. Static resources
- D. All external libraries
- E. Third-party web components
Answer: A,C,D
NEW QUESTION 135
Which feature should a developer use to update an inventory count on related Product records when the status of an Order is modified to indicate it is fulfilled?
- A. Lightning component
- B. Visualforce page
- C. Process Builder process
- D. Workflow rule
Answer: C
NEW QUESTION 136
A team of developers is working on a source-driven project that allows them to work independently, with many different org configurations. Which type of Salesforce orgs should they use for their development?
- A. Developer sandboxes
- B. Developer orgs
- C. Full Copy sandboxes
- D. Scratch orgs
Answer: D
NEW QUESTION 137
When an Account's custom picklist field called Customer Sentiment is changed to a value of "Confused", a new related Case should automatically be created.
Which two methods should a developer use to create this case? (Choose two.)
- A. Apex Trigger
- B. Custom Button
- C. Process Builder
- D. Workflow Rule
Answer: A,C
NEW QUESTION 138
Universal Containers has an order system that uses on Order Number to identify an order for customers service agents. Order records will be imported into Salesforce.
How should the "Order Number field be defined in Salesforce.
- A. Indirect Lookup
- B. Lookup
- C. Direct Lookup
- D. Number with External ID
Answer: D
NEW QUESTION 139
The Review__c object has a lookup relationship up to the Job_Application__c object. The Job_Application__c object has a master-detail relationship up the Position__c object. The relationship field names are based on the auto-populated defaults. What is the recommended way to display field data from the related Review__c records on a Visualforce page for a single Position__c record?
- A. Utilize the Standard Controller for Position__c and cross-object Formula fields on the job_Application__c object to display Review__c data.
- B. Utilize the Standard Controller for position__c and a Controller Extension to query for Review__c data.
- C. Utilize the Standard Controller for Position__c and cross-object Formula fields on the Review__c object to display Review__c data.
- D. Utilize the Standard Controller for position__c and expression syntax in the page to display related Review__c data through the job_Application__c object
Answer: B
NEW QUESTION 140
Universal Containers has a support process that allows users to request support from its engineering team using a custom object, Engineering_Support__c.
Users should be able to associate multiple engineering_Support__c records to a single Opportunity record.
Additionally, aggregate Information about the Engineering_support__c records should be shown on the Opportunity record.
What should a developer Implement to support these requirements?
- A. Lookup field from Engineering_support__c to Opportunity
- B. Lookup field from Opportunity to Engineering_Support__c
- C. Master-detail field from Opportunity to Engineering_Support__c
- D. Master-detail field from Engineering_Support__c to Opportunity.
Answer: D
NEW QUESTION 141
What are two testing consideration when deploying code from a sandbox to production? Choose 2 answers
- A. 100% of test must execute without failure
- B. Apex code requires 100% coverage
- C. 75% of test must execute without failure
- D. Apex code requires 75% coverage
Answer: A,D
NEW QUESTION 142
A candidate may apply to multiple jobs at the company Universal Containers by submitting a single application per job posting, that application cannot be modified to be resubmitted to a different job posting.What can the administrator do to associate an application with each job posting in the schema for the organization?
- A. Create a master-detail relationship in the Application custom object to the Job Postings custom object.
- B. Create a lookup relationship in the Applications custom object to the Job Postings custom object.
- C. Create a lookup relationship on both objects to a junction object called Job Posting Applications.
- D. Create a master-detail relationship in the Job Postings custom object to the Applications custom object.
Answer: A
NEW QUESTION 143
A developer created a Visualforce page and a custom controller with methods to handle different buttons and events that can occur on the page.
What should the developer do to deploy to production?
- A. Create a test class that provides coverage of the Visualforce page.
- B. Create a test class that provides coverage of the custom controller.
- C. Create a test page that provides coverage of the Visualforce page.
- D. Create a test page that provides coverage of the custom controller.
Answer: B
NEW QUESTION 144
As a part of class implementation a developer must execute a SOQL query against a large data ser based on the contact object. The method implementation is as follows.
Which two methods are best practice to implement heap size control for the above code? (Choose 2 Answers)
- A. Use a SOQL FOR loop, to chunk the result set in batches of 200 records.
- B. Use visual keyword when declaring the retrieve variable.
- C. Use WHERE clauses on the SOQL query to reduce the number of records retrieved.
- D. Use the FOR UPDATE option on the SOQL query to lock down the records retrieved.
Answer: A,B
NEW QUESTION 145
As part of a data cleanup strategy, AW Computing wants to proactively delete associated opportunity records when the related Account is deleted.
Which automation tool should be used to meet this business requirement?
- A. Workflow Rules
- B. Process Builder
- C. Scheduled job
- D. Record-Triggered Flow
Answer: D
NEW QUESTION 146
A developer has the following class and trigger code:
public class InsuranceRates { public static final Decimal smokerCharge = 0.01; } trigger ContactTrigger on Contact (before insert) { InsuranceRates rates = new InsuranceRates(); Decimal baseCost = XXX; } Which code segment should a developer insert at the XXX to set the baseCost variable to the value of the class variable smokerCharge?
- A. Rates.getSmokerCharge()
- B. InsuranceRates.smokerCharge
- C. ContactTrigger.InsuranceRates.smokerCharge
- D. Rates.smokerCharge
Answer: B
NEW QUESTION 147
Universal Containers (UC) decided it will not to send emails to support personnel directly from Salesforce in the event that an unhandled exception occurs. Instead, UC wants an external system be notified of the error. What is the appropriate publish/subscribe logic to meet these requirements?
- A. Publish the error event using the Eventbus.publish() method and have the external system subscribe to the event using CometD.
- B. Publish the error event using the addError() method and have the external system subscribe to the event using CometD.
- C. Publish the error event using the addError() method and write a trigger to subscribe to the event and notify the external system.
- D. Have the external system subscribe to the BatchApexError event, no publishing is necessary.
Answer: A
NEW QUESTION 148
Which type of code represents the Model in the MVC architecture when using Apex and Visualforce pages?
- A. A list of Account records returned from a Controller Extension method
- B. A Controller Extension method that uses SOQL to query for a list of Account records
- C. Custom JavaScript that processes a list of Account records
- D. A Controller Extension method that saves a list of Account records
Answer: A
NEW QUESTION 149
Using the Schema Builder, a developer tries to change the API name of a field that is referenced in an Apex test class.
What is the end result?
- A. The API name is not changed and there are no other impacts.
- B. The API name of the field and the reference in the test class is updated.
- C. The API name of the field is changed, and a warning is issued to update the class.
- D. The API name of the field and the reference in the test class is changed.
Answer: C
NEW QUESTION 150
A developer must build application that tracks which Accounts have purchase specific pieces of equal products. Each Account could purchase many pieces of equipment.
How should the developer track that an Account has purchased a piece of equipment.
- A. Use the Asset object.
- B. Use a Custom object.
- C. Use a Lookup on Account to product.
- D. Use a Master-Detail on Product to Account
Answer: D
NEW QUESTION 151
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