最新なSalesforce DEX-450問題集（239題）、真実試験の問題を全部にカバー！

質問 1：
Cloud kicks has a muli-screen flow its call center agents use when handling inbound service desk calls.
At one of the steps in the flow, the agents should be presented with a list of order number and dates that are retrieved from an external odrer management system in real time and displayed on the screen.
What shuold a developer use to satisfy this requirement?
A. An invocae method
B. An apex REST class
C. An Apex Controller
D. An outbound message
正解：B

質問 2：
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. Order has a re-parentable lookup field to Line Item.
C. Line Item has a re-parentable lookup field to Order.
D. Line Item has a re-parentable master-detail field to Order.
正解：D

質問 3：
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. Formula field on Applicant that references Job
B. Junction object between Applicant and Job
C. Master-detail field from Applicant to Job
D. Lookup field from Applicant to Job
正解：B

質問 4：
In terms of the MVC paradigm, what are two advantages of implementing the view layer of a Salesforce application using Lightning Web Component-based development over Visualforce?
Choose 2 answers
A. Log capturing via the Debug Logs Setup page
B. Self-contained and reusable units of an application
C. Built-in standard and custom set controllers
D. Rich component ecosystem
正解：B,D

質問 5：
Which three statements are true regarding custom exceptions in Apex? (Choose three.)
A. A custom exception class cannot contain member variables or methods.
B. A custom exception class name must end with "Exception".
C. A custom exception class can extend other classes besides the Exception class.
D. A custom exception class must extend the system Exception class.
E. A custom exception class can implement one or many interfaces.
正解：B,C,E

質問 6：
A developer is creating a Lightning web component to showa list of sales records.
The Sales Representative user should be able to see the commission field on each record. The Sales Assistant user should be able to see all fields on the record except the commission field.
How should this be enforced so that the component works for both users without showing any errors?
A. Use Lightning Locker Service to enforce sharing rules and field-level security.
B. Use Lightning Data Service to get the collection of sales records.
C. Use Security. stripInaccessible to remove fields inaccessible to the current user.
D. Use WITH SECURITY_ENFORCED in the SOQL that fetches the data for the component.
正解：C

質問 7：
A developer must create a DrawList class that provides capabilities defined in the Sortable and Drawable interfaces. public interface Sortable { void sort(); } public interface Drawable { void draw(); } Which is the correct implementation?
A. Public class DrawList implements Sortable, Drawable {
public void sort() { /*implementation*/}
public void draw() { /*implementation*/}
}
B. Public class DrawList extends Sortable, Drawable {
public void sort() { /*implementation*/}
public void draw() { /*implementation*/}
}
C. Public class DrawList implements Sortable, Implements Drawable {
public void sort() { /*implementation*/}
public void draw() { /*implementation*/}
]
D. Public class DrawList extends Sortable, extends Sortable, extends Drawable { public void sort() { /*implementation*/ } public void draw() { /* implementation */}
正解：A

質問 8：
A developer needs to implement a custom SOAP Web Service that is used by an external Web Application. The developer chooses to Include helper methods that are not used by the Web Application In the Implementation of the Web Service Class.
Which code segment shows the correct declaration of the class and methods?
A.
B.
C.
D.
正解：A

質問 9：
An org tracks customer orders on an Order object and the items of an Order on the Line Item object. The Line Item object has a MasterDetail relationship to the order object. A developer has a requirement to calculate the order amount on an Order and the line amount on each Line item based on quantity and price.
What is the correct implementation?
A. Write a single before trigger on the Line Item that calculates the item amount and updates the order amount on the Order.
B. Implement the Line amount as a currency field and the order amount as a SUM formula field.
C. Implement the line amount as a numeric formula field and the order amount as a roll-up summary field.
D. Write a process on the Line item that calculates the item amount and order amount and updates the filed on the Line Item and the order.
正解：C