EXAM DEX-450 BRAINDUMPS, DEX-450 EXAM SIMULATOR FREE

Exam DEX-450 Braindumps, DEX-450 Exam Simulator Free

Exam DEX-450 Braindumps, DEX-450 Exam Simulator Free

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Salesforce DEX-450 Exam Simulator Free | DEX-450 Exam Bible

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The DEX-450 Exam is ideal for developers who have experience in Apex and Visualforce development and are familiar with the Salesforce Lightning platform. DEX-450 exam consists of 60 multiple-choice questions, which must be completed in 105 minutes. To pass the exam, candidates must achieve a score of 65% or higher. Salesforce recommends that candidates have at least six months of experience in Salesforce development before attempting the exam.

Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q177-Q182):

NEW QUESTION # 177
A developer is implementing an Apex class for a financial system. Within the class, the variables 'creditAmount' and 'debitAmount' should not be able to change once a value is assigned.
In which two ways can the developer declare the variables to ensure their value can only be assigned one time?
Choose 2 answers

  • A. Use the final keyword and assign its value in the class constructor.
  • B. Use the final keyword and assign its value when declaring the variable.
  • C. Use the static keyword and assign its value in a static initializer.
  • D. Use the static keyword and assign its value in the class constructor.

Answer: A,B


NEW QUESTION # 178
A developer executes the following code in the Developer Console:
List<Account> fList = new List <Account> ();For(integer i= 1; I <= 200; i++){fList.add(new Account ( Name = 'Universal Account ' + i));}Insert fList;List <Account> sList = new List<Account>();For (integer I = 201; I <=
20000; i ++){sList.add(new Account (Name = 'Universal Account ' + i));}Insert sList;How many accounts are created in the Salesforce organization ?

  • A. 0
  • B. 1
  • C. 2
  • D. 3

Answer: C


NEW QUESTION # 179
Which tag should a developer include when styling from external CSS is required in a Visualforce page?

  • A. Apex : stylesheet
  • B. Apex : includeScript
  • C. Apex : includeStyle
  • D. Apex : require

Answer: A


NEW QUESTION # 180
Universal Containers wants to ensure that all new leads created in the system have a valid email address. They have already created a validation rule to enforce this requirement, but want to add an additional layer of validation using automation.
What would be the best solution for this requirement?

  • A. Use a custom Lightning web component to make a callout to validate the fields on a third party system.
  • B. Use an Approval Process to enforce tne completion of a valid email address using an outbound message action.
  • C. Use a before-save Apex trigger on the Lead object to validate the email address and display an error message If it Is invalid
  • D. Submit a REST API Callojt with a JSON payload and validate the f elds on a third patty system

Answer: C


NEW QUESTION # 181
Universal Containers hires a developer to build a custom search page to help users find the Accounts they want. Users will be able to search on Name, Description, and a custom comments field.
Which consideration should the developer be aware of when deciding between SOQL and SOSL?
Choose 2 answers

  • A. SOQL is able to return more records.
  • B. SOSL is faster for text searches.
  • C. SOSL is able to return more records.
  • D. SOQL is faster for text searches.

Answer: A,B

Explanation:
When deciding between SOQL (Salesforce Object Query Language) and SOSL (Salesforce Object Search Language), developers must consider the use case and limitations of each.
Option A: SOSL is faster for text searches.
Correct Statement.
SOSL is optimized for searching text, especially across multiple objects and fields.
It uses full-text search indexes and can quickly find records that match search terms.
Ideal for scenarios where you need to search for a string across many fields.
SOQL queries can return up to 50,000 records in Apex code.
SOSL searches can return up to 2,000 records.
Therefore, SOQL can return more records than SOSL.
SOQL is not optimized for text searches across multiple fields.
It is better suited for exact matches or filtering based on specific field values.
Option C: SOSL is able to return more records.
Incorrect.
SOSL returns fewer records compared to SOQL.
The limit for SOSL is 2,000 records.
Conclusion:
SOSL is faster for text searches across multiple fields (Option A).
SOQL is able to return more records than SOSL (Option D).
These considerations are important when building a custom search page for Accounts.
Reference:
SOSL Overview
Option D: SOQL is able to return more records.
Correct Statement.
SOQL and SOSL Limits
Options Not Accurate:
Option B: SOQL is faster for text searches.
Incorrect.


NEW QUESTION # 182
......

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