CRT-450 Exam Dumps - Salesforce Developers Questions and Answers

Question # 14

Assuming that name is a String obtained by an tag on a Visualforce page, which two SOQL queries performed are safe from SOQL injection? Choose 2 answers

Options:

Option A

Option B

Option C

Option D

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Answer:

A, C

Explanation:

Option A:

String query = 'SELECT Id FROM Account WHERE Name LIKE \'%' + String.escapeSingleQuotes(name) + '%\'';

List results = Database.query(query);

Explanation: This option uses String.escapeSingleQuotes(name) to sanitize the name variable. This method escapes any single quotes in the input, preventing malicious input from breaking out of the string context in the SOQL query.

[Reference: Salesforce Apex Developer Guide - Escaping Single Quotes, Why Safe: By escaping single quotes, it mitigates the risk of SOQL injection attacks that rely on manipulating string literals., , Option C:, , String query = '%' + name + '%';, List results = [SELECT Id FROM Account WHERE Name LIKE :name];, Explanation: This option uses a bind variable (:name) in the SOQL query. When variables are bound in this way, Salesforce automatically handles escaping and ensures that the input cannot alter the structure of the query., Reference: Salesforce Apex Developer Guide - Using Apex Variables in SOQL and SOSL Queries, Why Safe: Bind variables are the recommended way to include user input in SOQL queries safely, as they prevent injection by treating the input as a parameter rather than part of the query string., , Option B:, , String query = 'SELECT Id FROM Account WHERE Name LIKE \'%' + name.noQuotes() + '%\'';, List results = Database.query(query);, Explanation: The method noQuotes() does not exist in the Apex String class. Therefore, this code does not properly sanitize the name variable., Reference: Salesforce Apex Developer Guide - String Class Methods, Why Unsafe: Without proper sanitization, the name variable could contain malicious SOQL code, leading to injection vulnerabilities., , Option D:, , String query = 'SELECT Id FROM Account WHERE Name LIKE \'%' + name + '%\'';, List results = Database.query(query);, Explanation: This option directly concatenates the name variable into the query string without any form of sanitization or escaping., Reference: Salesforce Apex Developer Guide - SOQL Injection Overview, Why Unsafe: Direct concatenation of user input without sanitization leaves the application vulnerable to SOQL injection attacks., , Conclusion:, Safe Options: A and C are safe from SOQL injection because they properly handle user input through escaping and bind variables, respectively., Unsafe Options: B and D are unsafe as they do not adequately prevent SOQL injection., ]

Question # 15

What are two use cases for executing Anonymous Apex code?

Choose 2 answers

Options:

To run a batch Apex class to update all Contacts

To delete 15,000 inactive Accounts in a single transaction after a deployment

To add unit test code coverage to an org

To schedule an Apex class to run periodically

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Question # 16

A Primaryid__c custom field exists on the candidate_ c custom object. The field is used to store each candidate's id number and is marked as Unique in the schema definition.

As part of a data enrichment process, Universal Containers has a CSV file that contains updated data for all candidates in the system. The file contains each Candidate's primary id as a data point. Universal Containers wants to upload this information into Salesforce, while ensuring all data rows are correctly mapped to a candidate in the system.

Which technique should the developer implement to streamline the data upload?

Options:

Create a before Insert trigger to correctly map the records.

Create a before save flow to correctly map the records.

Update the PrimaryId__ c field definition to mark it as an External Id.

Upload the CSV into a custom object related to Candidate__ c.

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Question # 17

A Next Best Action strategy uses an Enhance element that invokes an Apex method to determine a discount level for a Contact, based on a number of factors.

What is the correct definition of the Apex method?

Options:

Option A

Option B

Option C

Option D

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Question # 18

Consider the following code snippet for a Visualforce page that is launched using a Custom Button on the Account detail page layout.

When the Save button is pressed the developer must perform a complex validation that involves multiple objects and, upon success, redirect the user to another Visualforce

page.

What can the developer use to meet this business requirement?

Options:

Controller extension

Custom controller

Apex trigger

Validation rule

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Question # 19

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?

Options:

Create a test class to execute the business logic and run the test in the Developer Console.

Run the code in an Execute Anonymous block in the Developer Console.

Include a savepoint and Database.rollback().

Include a try/catch block to the Apex class.

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Answer:

Explanation:

To ensure that the Apex class is functioning according to the specified requirements, the developer should write a test class that executes the business logic and verifies that it behaves as expected.

Option A: Create a test class to execute the business logic and run the test in the Developer Console.

Correct Approach.

Explanation:

Writing a test class allows the developer to create unit tests that verify the functionality of the Apex class.

Test methods can assert that the class behaves as intended under various conditions, ensuring compliance with requirements.

Running the test in the Developer Console allows the developer to see the results and debug if necessary.

Benefits:

Automated Testing: Ensures repeatability and consistency in testing.

Code Coverage: Helps achieve required code coverage for deployment.

Regression Testing: Facilitates detection of future changes that might break existing functionality.

[Reference:, Testing Apex, Best Practices for Unit Testing, Option B: Run the code in an Execute Anonymous block in the Developer Console., Less Effective., Explanation:, While running code in Execute Anonymous allows for quick tests, it is not suitable for thorough testing., It doesn't provide assertions to verify that the output matches expected results., Tests run in Execute Anonymous are not saved and cannot be rerun easily for regression testing., Reference:, Anonymous Blocks, Option C: Include a savepoint and Database.rollback()., Not Sufficient., Explanation:, Using savepoints and rollbacks can help in testing DML operations without committing changes to the database., However, this doesn't ensure that the class meets the functional requirements., Reference:, Using Savepoints and Rollbacks, Option D: Include a try/catch block to the Apex class., Not Sufficient., Explanation:, Adding try/catch blocks can handle exceptions but does not verify that the class functions as specified., Exception handling is a part of robust code but doesn't replace the need for testing., Reference:, Exception Handling in Apex, Conclusion:, Writing a test class is the best way to ensure that the Apex class works according to the specifications., Test classes allow for comprehensive testing with assertions, providing confidence that the code meets the requirements., ]

Question # 20

A lead developer creates a virtual class called "OrderRequest". Consider the following code snippet:

How can a developer use the OrderRequest class within the CustomerOrder class?

Options:

public class CusctomerOrder implements Order

@Implements (class="OrderRequest”)

public class CusatomaxOrder

Extends (class="OrderRequest”) pubklic

class CuastomerOrder

public class CustomerOrder extends OrderRequest

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Question # 21

Universal Containers has developed custom Apex code and Lightning Components in a Sandbox environment. They need to deploy the code and associated configurations to the Production environment.

What is the recommended process for deploying the code and configurations to Production?

Options:

Use the Force.com IDE to deploy the Apex code and Lightning Components.

Use the Ant Migration Tool to deploy the Apex code and Lightning Components.

Use a change set to deploy the Apex code and Lightning Components.

Use Salesforce CLI to deploy the Apex code and Lightning Components.

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Question # 22

A company has a custom object, order__ ¢, that has a required, unique external ID field called crder_number_c.

Which statement should be used to perform the DML necessary to insert new records and update existing records in a list of order_c records using the external ID field?

Options:

merge orders;

merge orders Order_Number_ c;

upsert orders:

upserrc orders Order Number_c;

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Question # 23

A developer considers the following snippet of code:

Based on this code, what is the value of x?

Options:

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Exam Code: CRT-450

Exam Name: Salesforce Certified Platform Developer I (SU24)

Last Update: Feb 21, 2025

Questions: 174

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