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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.

Salesforce DEX-450 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Referencing Custom Controllers and Controller Extensions
  • Use the sObject data type, the primitive data types, and basic control statements in Apex
Topic 2
  • Write tests for action methods, getters, setters, and properties
  • List the differences between the ways you can invoke DML operations
Topic 3
  • Describe the syntax of a trigger definition
  • Display data from a record in a Visualforce page
Topic 4
  • Visualforce Development Considerations and Testing
  • Determine what data an Apex class can access
Topic 5
  • Describe common limit issues and security concerns
  • Launch a Visualforce page using a custom button
Topic 6
  • Write a basic query using Salesforce’s query language, SOQL
  • Write Apex to invoke DML operations and handle DML errors

>> Salesforce DEX-450 Examinations Actual Questions <<

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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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