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What is the duration, language, and format of Salesforce DEX-450 Exam
- The type of questions is Multiple Choice and situation-based questions.
- Certification Validity period : 3 years.
- This exam consists of 85 questions
- This exam is offered in only English.
The validity of the Salesforce DEX-450 certification is three years.
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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q141-Q146):
NEW QUESTION # 141
What is a correct pattern to follow when programming in Apex on a Multi-tenant platform?
- A. Apex classes use the ''with sharing" keyword to prevent access from other server tenants.
- B. Queries select the fewest fields and records possible to avoid exceeding governor limits.
- C. DML is performed on one record at a time to avoid possible data concurrency issues.
- D. Apex code is created in a separate environment from schema to reduce deployment errors.
Answer: B
NEW QUESTION # 142
A developer creates a Workflow Rule declaratively that updates a field on an object. An Apex update trigger exists for that object. What happens when a user updates a record?
- A. Both the Apex Trigger and Workflow Rule are fired only once.
- B. No changes are made to the data.
- C. The Apex Trigger is fired more than once.
- D. The Workflow Rule is fired more than once.
Answer: C
NEW QUESTION # 143
Which data structure is returned to a developer when performing a SOSL search?
- A. A map of sObject types to a list of sObjects
- B. A map of sObject types to a list oflists of sobjects
- C. A list of sObjects.
- D. A list of lists of sObjects.
Answer: D
NEW QUESTION # 144
To which data type in Apex a currency field automatically assigned?
- A. Integer
- B. Currency
- C. Double
- D. Decimal
Answer: D
NEW QUESTION # 145
A developer is tasked with performing a complex validation using Apex as part of advanced business logic. certain criteria are met for a PurchaseOrder, the developer must throw a custom exception.
What is the correct way for the developer to declare a class that can be used as an exception?
- A. public class PurchaseOrder extends Exception ()
- B. public class PurchaseOrder implements Exception ()
- C. public class PurchaseOrderException implements Exception ()
- D. public class PurchaseOrderException extends Exception ()
Answer: D
NEW QUESTION # 146
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