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Salesforce DEX-450 Certification Exam is a valuable credential 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 provides a competitive edge in the job market and helps developers to advance their careers in Salesforce development.

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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q27-Q32):

NEW QUESTION # 27
Which three methods help ensure quality data?

A. Adding an error to a field in before trigger
B. Sending an email alert using a workflow rule
C. Handling an exception in Apex
D. Create a lookup filter
E. Adding a validation rule

Answer: B,D,E

NEW QUESTION # 28
A developer created a trigger on a custom object. This custom object also has some dependent pick lists.
According to the order of execution rules, which step happens first?

A. The original record is loaded from the database.
B. System validation is run for maximum field lengths.
C. Old values are overwritten with the new record values.
D. JavaScript validation is run in the browser,

Answer: A

NEW QUESTION # 29
In a single record, a user selects multiple values from a multi-select picklist.
How are the selected values represented in Apex?

A. As a String with each value separated by a semicolon
B. As a String with each value separated by a comma
C. As a List<String> with each value as an element in the list
D. As a Set<String> with each value as an element in the set

Answer: A

NEW QUESTION # 30
What are three considerations when using the @lnvocableMethod annotation in Apex?
Choose 3 answers

A. A method using the @invecableMethod annotation can have multiple input parameters.
B. Only one method using the @invecableMethod annotation can be defined per Apex class_
C. A method using the @invocablemethod annotation must be declaredas static,
D. A method using the @invocableMethod annotation can be declared as Public or Global.
E. GO A method using the @invocablemethod annotation must define a return value.

Answer: B,C,D

NEW QUESTION # 31
Which two Apex data types can be used to reference a Salesforce record ID dynamically? (Choose two.)

A. External ID
B. String
C. sObject
D. ENUM

Answer: B,D

NEW QUESTION # 32
......

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