Salesforce CRT-450 問題集

質問 1：
Universal Containers (UC) uses out-of-the-box order management, that has a Master-Detail relationship between Order and Order Line Item.
UC stores the availability date on each Order Line Item and Orders are only shipped when all of the Order Line Items are available.
Which method should be used to calculate the estimated ship date for an Order?
A. Use 2 LATEST formula on each of the latest availability date fields.
B. Use a CEILING formula on each of the latest availability date fields.
C. Use @ DAYS formula on each of the availability date fields and a COUNT Roll-Up Summary field on the Order.
D. Use a MAX Roll-Up Summary field on the latest availability date fields.
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 2：
A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what is defined for payments in the PaymentProcessor interface.
apex
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public interface PaymentProcessor {
void pay(Decimal amount);
}
Which is the correct implementation to use the PaymentProcessor interface class?
A. apex
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public class CheckPaymentProcessor extends PaymentProcessor {
public void pay(Decimal amount) {}
}
B. apex
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public class CheckPaymentProcessor implements PaymentProcessor {
public void pay(Decimal amount);
}
C. apex
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public class CheckPaymentProcessor extends PaymentProcessor {
public void pay(Decimal amount);
}
D. apex
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public class CheckPaymentProcessor implements PaymentProcessor {
public void pay(Decimal amount) {}
}
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 3：
A developer is designing a new application on the Salesforce platform and wants to ensure it can support multiple tenants effectively.
Which design framework should the developer consider to ensure scalability and maintainability?
A. Waterfall Model
B. Model-View-Controller (MVC)
C. Flux (view, action, dispatcher, and store)
D. Agile Development
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 4：
If Apex code executes inside the execute() method of an Apex class when implementing the Batchable interface, which two statements are true regarding governor limits?
Choose 2 answers
A. The Apex governor limits are reset for each iteration of the execute () method.
B. The Apex governor limits cannot be exceeded due to the asynchronaus nature of the transaction.
C. The Apex governor limits will use the asynchronous limit levels.
D. The Apex governor limits are omitted while calling the constructor of the Apex class.
正解：A,C
解説: (Topexam メンバーにのみ表示されます)

質問 5：
A developer needs to allow users to complete a form on an Account record that will create a record for a custom object.
The form needs to display different fields depending on the user's job role, The functionality should only be available to a small group of users.
Which three things should the developer do to satisfy these requirements?
Choose 3 answers
A. Create a Custom Permission for the users.
B. Add a Dynamic Action to the Account Record Page.
C. Add a Dynamic Action to the Users' assigned Page Layouts.
D. Create a Lightning wed component.
E. Create a Dynamic Form.
正解：A,C,D
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Which Lightning Web Component custom event property settings enable the event to bubble up the containment hierarchy and cross the Shadow DOM boundary?
A. bubbles: false, composed: false
B. bubbles: true, composed: true
C. bubbles: false, composed: true
D. bubbles: true, composed: false
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 7：
A custom picklist field, Pool Preference , exists on a custom object. The picklist contains the following options: 'Vegan', 'Kosher', 'No Preference'. The developer must ensure a value is populated every time a record is created or updated.
What is the optimal way to ensure a value is selected every time a record is saved?
A. Write an Apex trigger to ensure a value is selected,
B. Mark the field as Required on the field definition.
C. Mark the field as Required on the object's page layout.
D. Set "Use the first value in the list as the default value" to True.
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 8：
The Account object in an organization has a master-detail relationship to a child object called Branch. The following automations exist:
* Roll-up summary fields
* Custom validation rules
* Duplicate rules
developer created a trigger on the Account object.
Which two things should the developer consider while testing the trigger code?
Choose 2 answers
A. The validation rules will cause the trigger to fire again.
B. Duplicate rules are executed once all DML operations commit to the database.
C. The trigger may fire multiple times during a transaction.
D. Rollup summary fields can cause the parent record to go through Save.
正解：C,D
解説: (Topexam メンバーにのみ表示されます)

質問 9：
What is the value of the Trigger.old context variable in a before insert trigger?
A. null
B. A list of newly created sObjects without IDs
C. Undefined
D. An empty list of sObjects
正解：A
解説: (Topexam メンバーにのみ表示されます)