Valid CRT-450 Practice Materials | Test CRT-450 Guide

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To be eligible to take the Salesforce CRT-450 Exam, candidates must have a solid understanding of Salesforce fundamentals, including the Salesforce data model, security model, and user interface. They must also have experience developing applications on the Salesforce platform using Apex and Visualforce.

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To prepare for the Salesforce CRT-450 Certification Exam, candidates can take the official Salesforce Certified Platform Developer I training course, which covers all the topics that are required to pass the exam. Additionally, there are many online resources available, such as practice exams, study guides, and online courses, that can help candidates prepare for the certification exam.

Salesforce Certified Platform Developer I Sample Questions (Q193-Q198):

NEW QUESTION # 193
A developer wants to display all of the available record types for a Case object. The developer also wants to display the picklist values for the Case.Status field. The Case object and the Case Status field are on a custom visualforce page.
Which action can the developer perform to get the record types and picklist values in the controller? Choose 2 answers

A. Use Schema.RecordTypeinfo returned by Case.SObjectType getDescribe().getRecordTypelnfos()
B. Use SOQL to query Case records in the org to get all value for the Status picklist field.
C. Use SOQL to query Case records in the org to get all the RecordType values available for Case.
D. Use Schema.PicklistEntry returned by Case Status getDescribe().getPicklistValues().

Answer: A,D

NEW QUESTION # 194
While writing an Apex class, a developer wants to make sure that all functionality being developed is handled as specified by the requirements.
Which approach should the developer use to be sure that the Apex class is working according to specifications?

A. Create a test class to execute the business logic and run the test in the Developer Console.
B. Run the code in an Execute Anonymous block in the Developer Console.
C. Include a try/catch block to the Apex class.
D. Include a savepoint and pacabase.rollback().

Answer: A

Explanation:
Creating test classes ensures that the Apex class works according to specifications by validating the functionality under various scenarios and edge cases. Running tests in the Developer Console provides detailed feedback on whether the class meets requirements.
Reference:Testing Apex
Incorrect Options:
A:Savepoints and rollbacks are used to manage transactions, not for validation.
B:Try/catch blocks handle exceptions but do not ensure the code adheres to specifications.
C:Execute Anonymous only tests small portions of code interactively, not comprehensive functionality.

NEW QUESTION # 195
Which annotation should a developer use on an Apex method to make it available to be wired to a property in a Lightning web component?

Answer: B

NEW QUESTION # 196
A developer creates a custom exception as shown below:
What are two ways the developer can fire the exception in Apex? Choose 2 answers

A. New ParityException( );
B. New ParityException (parity does not match);
C. Throw new parityException ( );
D. Throw new ParityException (parity does not match);

Answer: C,D

NEW QUESTION # 197
A developer must troubleshoot to pinpoint the causes of performance issues when a custom page loads in their org.
Which tool should the developer use to troubleshoot query performance?

A. Developer Console
B. Setup Menu
C. AppExchange
D. Visual Studio Code IDE

Answer: A

Explanation:
Why Developer Console?
TheDeveloper Consoleprovides tools to troubleshoot query performance, including the Query Plan tool.
The Query Plan tool evaluates SOQL query performance and provides insight into query costs and optimization.
Why Not Other Options?
A: Setup Menu: Used for administrative tasks, not performance troubleshooting.
B: Visual Studio Code IDE: Useful for development, but does not offer query performance tools.
C: AppExchange: Provides apps but does not directly help with query troubleshooting.
References:Query Plan Tool:https://developer.salesforce.com/docs/atlas.en-us.220.0.salesforce_console.meta
/salesforce_console/salesforce_console_query_plan.htm

NEW QUESTION # 198
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VALID CRT-450 PRACTICE MATERIALS | TEST CRT-450 GUIDE

Valid CRT-450 Practice Materials | Test CRT-450 Guide