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Candidates who prepare for the Salesforce DEX-450 Certification will be well-equipped to pass the exam and demonstrate their expertise in Salesforce development. They will gain knowledge about the newest features and best practices for developing Apex, Visualforce, and Lightning components. They will be able to apply their knowledge to develop the best applications that drive their businesses' success. They will also be able to share their experience with colleagues and contribute to the wider Salesforce community.

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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q54-Q59):

NEW QUESTION # 54
A developer wants to use all of the functionality provided by the standard controller for an object, but needs to override the Save standard action in a controller extension. Which two are required in the controller extension class?

A. Define the class with a constructor that takes an instance of StandardController as a parameter.
B. Create a method named Save with a return data type of PageReference.
C. Create a method that references this.superSave()
D. Define the class with a constructor that creates a new instance of the StandardController class.

Answer: A,B

NEW QUESTION # 55
Which scenario is invalid for execution by unit tests?

A. Executing methods for negative test scenarios
B. Executing methods as different users.
C. Loading the standard Pricebook ID using a system method
D. Loading test data in place of user input for Flows.

Answer: D

NEW QUESTION # 56
Universal Containers has developed custom Apex code and Lightning Components in a Sandbox environment. They need to deploy the code and associated configurations to the Production environment.
What is the recommended process for deploying the code and configurations to Production?

A. Use the Force.com IDE to deploy the Apex code and Lightning Components.
B. Use a change set to deploy the Apex code and Lightning Components.
C. Use Salesforce CLI to deploy the Apex code and Lightning Components.
D. Use the Ant Migration Tool to deploy the Apex cade and Lightning Components.

Answer: C

NEW QUESTION # 57
An Account trigger updates all related Contacts and Cases each time an Account is saved using the following two DML statements:
update allContacts; update allCases;
What is the result if the Case update exceeds the governor limit for maximum number of DML records?

A. The Account save fails and no Contacts or Cases are updated
B. The Account save succeeds and no Contacts or Cases are updated
C. The Account save succeeds, Contacts are updated, but Cases are not.
D. The Account save is retried using a smaller trigger batch size.

Answer: A

NEW QUESTION # 58
Universal Container is building a recruiting app with an Applicant object that stores information about an individual person that represents a job. Each application may apply for more than one job.
What should a developer implement to represent that an applicant has applied for a job?

A. Master-detail field from Applicant to Job
B. Lookup field from Applicant to Job
C. Formula field on Applicant that references Job
D. Junction object between Applicant and Job

Answer: A

NEW QUESTION # 59
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