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Salesforce CRT-450 Exam Overview:

Certification Vendor:Salesforce
Exam Name:Salesforce Certified Platform Developer I
Exam Number:CRT-450
Available Languages:Japanese, English
Passing Score:65%
Exam Format:Multiple Choice, Multiple Select
Exam Duration:110 minutes
Related Certifications:Salesforce Certified Platform Developer II
Real Exam Qty:60
Exam Price:USD 200
Sample Questions:Salesforce CRT-450 Sample Questions
Exam Way:Proctored exam delivered onsite at a testing center or in an online proctored environment
Pre Condition:None required; course attendance highly recommended
Official Syllabus URL:https://trailhead.salesforce.com/en/credentials/developeroverview

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The Salesforce CRT-450 Exam consists of 60 multiple-choice questions that must be completed within 105 minutes. The questions are designed to test the candidate's knowledge and understanding of the Salesforce platform, including Apex programming language, Visualforce framework, and the Salesforce development process. CRT-450 exam also covers the use of the Salesforce development tools, such as Developer Console and Force.com IDE.

Salesforce CRT-450 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Apex Coding: This section of the exam measures the skills of Salesforce developers and focuses on the application of Apex in Salesforce. It covers declaring variables, using control flow statements, writing SOQL and DML statements, and adhering to best practices for Apex classes and triggers.
Topic 2
  • Testing, Debugging, and Deployment: This section of the exam measures the skills of release managers and covers testing methodologies, debugging techniques, and deployment processes within the Salesforce ecosystem.
Topic 3
  • User Interface: This section of the exam measures the skills of Salesforce UI specialists and covers the development of user interfaces using Visualforce pages, Lightning Web Components, and other Salesforce UI technologies. It includes displaying content, modifying Salesforce data, preventing UI and data access vulnerabilities, and implementing custom UI components.
Topic 4
  • Developer Fundamentals: This section of the exam measures the skills of junior Salesforce developers and covers fundamental concepts, including multi-tenant architecture, MVC design frameworks, and the Lightning Component Framework. It also emphasizes the use of declarative versus programmatic customizations, data modeling with objects and fields, and the considerations for data import and export in development environments.

Salesforce Certified Platform Developer I Sample Questions (Q146-Q151):

NEW QUESTION # 146
Given the code below, what can be done so that recordcount can be accessed by a test class, but not by a non-test class? Public class mycontroller{ private integer recordcount; }

Answer: A


NEW QUESTION # 147
A developer is writing tests for a class and needs to insert records to validate functionality. Which annotation method should be used to create record for every method in the test class?

Answer: D


NEW QUESTION # 148
While working in a sandbox, an Apex test fails when run in the Test Runner. However, executing the Apex logic in the Execute Anonymous window succeeds with no exceptions or errors.
Why did the method fail in the sandbox test framework but succeed in the Developer Console?

Answer: A

Explanation:
The test method fails in the sandbox test framework because it relies on existing data in the sandbox, which may not be consistent or available for the test execution. The Apex test framework uses a separate test data context that is rolled back after the test execution, so any data that is queried or inserted by the test method must be created within the test method or by using the @testSetup annotation. The Execute Anonymous window, on the other hand, runs the Apex logic in the current user context and can access the existing data in the sandbox. Therefore, the Apex logic may succeed in the Execute Anonymous window but fail in the test framework. References:
* Apex Testing (Salesforce Developer Documentation)
* Isolation of Test Data from Organization Data in Unit Tests (Salesforce Developer Documentation)
* Free Salesforce Platform Developer 1 Practice Exam (With Answers) (Salesforce Ben)


NEW QUESTION # 149
The Account object in an organization has a master-detail relationship to a child object called Branch. The following automations exist:
* Roll-up summary fields
* Custom validation rules
* Duplicate rules
developer created a trigger on the Account object.
Which two things should the developer consider while testing the trigger code?
Choose 2 answers

Answer: A,D

Explanation:
A . Roll-up summary fields can cause the parent record to go through Save:
When a roll-up summary field on a parent object (like Account) is updated due to changes in child records (like Branch), the parent record (Account) is implicitly saved again.
This can result in the execution of the trigger on the parent object. Developers must consider this behavior to avoid unintended recursion or infinite loops.
Reference:
C . The trigger may fire multiple times during a transaction:
Triggers can execute multiple times within a single transaction, especially when there are operations such as updates to the parent record caused by roll-up summary fields or workflows.
Developers should implement logic to ensure that the trigger handles multiple executions correctly (e.g., using a static variable to prevent recursion).
Why not the other options?
B . Duplicate rules are executed once all DML operations commit to the database:
This is incorrect because duplicate rules execute before the DML operation is committed. Duplicate rules prevent duplicate records from being created or updated before the database operation occurs.
D . The validation rules will cause the trigger to fire again:
This is incorrect because validation rules do not cause triggers to fire again. Validation rules validate the record and may prevent DML operations, but they do not independently re-trigger the Apex trigger.
Trigger Context and Recursion
Roll-Up Summary Field Documentation


NEW QUESTION # 150
A developer needs to have records with specific field values in order to test a new Apex class.
What should the developer do to ensure the data is available to the test?

Answer: A


NEW QUESTION # 151
......

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