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Salesforce DEX-450 exam is designed for experienced developers who have a strong understanding of the Salesforce platform and its various components. Candidates should have a solid grasp of object-oriented programming principles, as well as experience with Apex, Visualforce, and the Salesforce development lifecycle. Additionally, candidates should be familiar with the latest features and best practices in Lightning Experience development.

Salesforce DEX-450 Certification Exam is designed for Salesforce developers who want to demonstrate their expertise in programmatic development using Apex and Visualforce in Lightning Experience. Programmatic Development using Apex and Visualforce in Lightning Experience certification exam is intended for individuals who have experience developing for the Salesforce platform and are looking to expand their knowledge and skills in programmatic development.

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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q198-Q203):

NEW QUESTION # 198
A developer has the following requirements:
* Calculate the total amount on an Order.
* Calculate the line amount for each Line Item based on quantity selected and price.
* Move Line Items to a different Order if a Line Item is not in stock.
Which relationship implementation supports these requirements on its own7

A. Order has a re-parentable master-detail field to Line Item.
B. Line Item has a re-parentable lookup field to Order.
C. Order has a re-parentable lookup field to Line Item.
D. Line Item has a re-parentable master-detail field to Order.

Answer: D

NEW QUESTION # 199
How is a controller and extension specified for a custom object named "Notice" on a Visualforce page?

A. apex:page controllers="Notice_c, myContcollerExtension"
B. apex:pege=Notice extends="myControllerExtension"
C. apex:page standardController="Notice_c" extensions="myControllerExtension""
D. apex:page controller="Notice_c" extensions="myControllerExtension"

Answer: C

NEW QUESTION # 200
An Opportunity needs to have an amount rolled up from a custom object that is not in a master-detail relationship.
How can this be achieved?

A. Use the Metadata API to create real-time roll-up summaries.
B. Write a trigger on the child object and use an aggregate function to sum the amount for all related child objects under the Opportunity.
C. Use the Streaming API to create real-time roll-up summaries.
D. Write a trigger on the Opportunity object and use tree sorting to sum the amount for all related child objects under the Opportunity.

Answer: B

NEW QUESTION # 201
n org has an existing flow that creates an Opportunity with an Update Records element. A developer must update the flow to aiso create a 'Contact and store the created Contact's 1D on the Opportunity.
Which update must the developer make in the flow?

A. Add a new Create Records element.
B. Add a new Update Records element.
C. Add a new Get Records element.
D. Add a new Roll back Records element

Answer: A

NEW QUESTION # 202
Requirements state that a child record be to deleted when its parent is deleted, and a child can be moved to a different parent when necessary. Which type of relationship should be built between the parent and child objects in Schema Builder to support these requirements?

A. Child relationship
B. Lookup Relathionship from to child to the parent
C. Lookup Relathionship from to parent to the child
D. Master-Detail relationship

Answer: D

NEW QUESTION # 203
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