Salesforce B2C-COMMERCE-DEVELOPER Online Practice Questions and Exam Preparation

Salesforce B2C-COMMERCE-DEVELOPER Online Questions & Answers

• Question 61:

  A Newsletter controller contains the following route:

  Server.post(`Subscribe', function (req,res,next){

  var newsletterForm = server.forms.getForm(`newsletter');var CustomObjectMgr = require(`dw/object/CustomObjectMgr');

  if(newsletterForm.valid){

  try{

  var CustomObject =

  CustomObjectMgr.createCustomObejct(`NewsletterSubscription', newsletterform.email.value);

  CustomObject.custom.firstName = newsletterForm.fname.value;

  CustomObject.custom.lastName = newsletterForm.lname.value;} catch(e){

  //Catch error here

  }

  }

  next();

  });

  Assuming the Custom Object metadata exists, why does this route fail to render the newsletter template when the subscription form is correctly submitted?

  A. Custom Objects can only be created by Job scripts
  B. The Subscribe route is missing the server.middleware.httpt middleware.
  C. The CustomObjectMgr variable should be declare outside of the route.
  D. The Custom Object creation is not wrapped in a Transaction.
  D. The Custom Object creation is not wrapped in a Transaction.

  ---

  Explanation Explanation/Reference:The route likely fails to render the newsletter template after the subscription form is correctly submitted due to the issue highlighted in: D. The Custom Object creation is not wrapped in a Transaction.In Salesforce B2C Commerce, when creating or modifying Custom Objects, it is crucial to manage these operations within a transaction. This ensures data integrity and consistency, particularly in operations that might affect database states or require rollback in the event of errors. Wrapping Custom Object creation in a transaction allows the system to correctly commit the changes only if all operations within the transaction succeed. If any part of the transaction fails, it can be rolled back to maintain consistent data states, which is particularly important in forms processing where multiple related data manipulations occur.

• Question 62:

  Which three operations should be done in a controller? Choose 3 answers

  A. Generate the response as JSON or HTML
  B. Use the Script API to generate data for the view.
  C. Use middleware functions when applicable
  D. Create a plain JavaScript object representing a system object
  E. Use the model needed for the view.
  A. Generate the response as JSON or HTML
  B. Use the Script API to generate data for the view.
  E. Use the model needed for the view.

  ---

  In Salesforce B2C Commerce, controllers are responsible for handling application logic and responding to user requests. The operations best suited to be done in a controller include: A. Generate the response as JSON or HTML - Controllers handle the final rendering of data in the desired format for the client, whether as web pages (HTML) or data endpoints (JSON). B. Use the Script API to generate data for the view Controllers often leverage server-side Script APIs to fetch or manipulate data necessary for the view. E. Use the model needed for the view - It is a common practice to construct models that encapsulate data and business logic which are then passed to the view for rendering, keeping views clean and focused solely on presentation.

• Question 63:

  Which technical reports datapoint measures the performance of a controller's script execution if network factors and Web Adaptor processing is ignored?

  A. Processing time
  B. Cache hit ratio
  C. Callcount
  D. Response time
  A. Processing time

  ---

  The technical report datapoint that best measures the performance of a controller's script execution, excluding network factors and Web Adaptor processing, is: Processing time (A): This measures the time taken by the server to execute the script, excluding all external factors such as network delay or client-side processing. It focuses solely on the server-side script execution time, providing a clear indication of the performance of the script itself. Other options like Cache hit ratio (B), Call count (C), and Response time (D) measure different aspects of system performance and do not exclusively focus on the execution time of scripts on the server.

• Question 64:

  A Digital Developer must give users the ability to choose an occasion (holiday, birthday, anniversary, etc.) for which gifts are currently being selected. Thedata needs to be persistent throughout the current shopping experience.

  Which data store variable is appropriate, assuming there is no need to store the selection in any system or custom objects?

  A. Request scope variable
  B. Page scope variable
  C. Session scope variable
  D. Content slot variable
  C. Session scope variable

  ---

  For the requirement of persisting user-selected data (like occasion type) throughout a shopping session without the need for permanent storage, the session scope variable is the most appropriate. Session variables in Salesforce B2C Commerce are designed to store data for the duration of a user's session, making them ideal for scenarios where information needs to persist across multiple pages and actions but only for the duration of the session. This choice avoids unnecessary data storage in the system or custom objects and provides an easy and effective way to maintain state across the user's shopping experience. Detailed guidance on session scope variables can be found in the "Session Management" section of the Salesforce Commerce Cloud documentation.

• Question 65:

  Adigital instance has one site, with one master product catalog separate from the site catalog. Some, but NOT all, products in the master catalog are assigned to categories of the site catalog.

  Using Business Manager, how can a Digital Developer create a catalog export file that contains only the products assigned to the site catalog?

  A. Use the Catalog Export module to export the site catalog.
  B. Use the Catalog Export module to export the master catalog, with a category- assignment search to export specific products.
  C. Use the Site Import and Export module to export both the site catalog and the master catalog in a single archive.
  D. Use the Site Import and Export module to export the master catalog, filtered by site catalog categories to export specific products.
  B. Use the Catalog Export module to export the master catalog, with a category- assignment search to export specific products.

  ---

  To export only the products assigned to the site catalog, using the master catalog as a reference, the Digital Developer needs to use the Catalog Export module with specific filtering criteria. Option B: Use the Catalog Export module to export the master catalog, with a category- assignment search to export specific products: This option correctly targets the master catalog and applies a filtering condition to select only those products that are assigned to categories within the site catalog. This method is effective because it leverages the comprehensive nature of the master catalog while specifically targeting the subset of products that are relevant to the site catalog, ensuring a precise and optimized export process.

• Question 66:

  Universal Containers needs to have Apple Pay disabled for the country of Spain. Which Business Manager module should the Developer use to meet this requirement?

  A. Merchant Tools > Ordering > PaymentMethods
  B. Merchant Tools > Site Preferences > Apple Pay
  C. Merchant Tools > Ordering > Payment Processors
  D. Merchant Tools > Site Preferences > Payment Types
  D. Merchant Tools > Site Preferences > Payment Types

  ---

  Explanation Explanation/Reference:To disable Apple Pay for a specific country such as Spain, the appropriate module in the Salesforce B2C Commerce Business Manager is: Merchant Tools > Site Preferences > Payment Types (D): This module allows the developer to configure and manage different payment methods available on the site, including enabling or disabling them for specific countries or regions. Options like Payment Methods (A) and Payment Processors (C) generally deal with setting up and managing the details of how payments are processed but do not specifically allow for enabling/disabling payment methods by country. There is no specific module under "Apple Pay" in Site Preferences (B), as Apple Pay settings would be grouped under general payment types settings.

• Question 67:

  When inspecting the weekly service status report for a critical internally hosted web service used in the application, a developer notices that there are too many instances of unavailability.

  Which two solutions can reduce the unavailability of the service? Choose 2 answers.

  A. Update the service to have a faster response time.
  B. Modify the code that makes the request to the external service to be wrapped in a try/catchblock.
  C. Increase the web service time out
  D. Change the code that sets the throwOnError attribute of the service to be true.
  A. Update the service to have a faster response time.
  B. Modify the code that makes the request to the external service to be wrapped in a try/catchblock.

  ---

  To address the issue of too many instances of unavailability for a critical web service, two effective solutions are: A) Update the service to have a faster response time. Improving the response time can help reduce timeouts and potential failures in connecting to the service, thus reducing unavailability. B) Modify the code that makes the request to the external service to be wrapped in a try/catch block. This approach ensures that any exceptions thrown during the service call are handled gracefully, preventing the entire application or process from failing and allowing for alternative actions or error logging. These solutions aim to enhance the reliability and robustness of the service integration, as recommended in best practices for error handling and performance optimization in Salesforce B2C Commerce Cloud.

• Question 68:

  A developer needs to perform the same additional checks before completing multiple routes in a custom controller, in orderto decide whether to render a template or redirect the user to a different page.

  According to SFRA best practices, what is the correct approach to improve code reusability in this scenario?

  A. Define a new middleware function and use it in the existing routes.
  B. Append a new function to all the existing routes with the server module.
  C. Replace the existing routes by creating a controller in separate new cartridge.
  D. Use the superModule property in the existing routes to extend their functionality.
  A. Define a new middleware function and use it in the existing routes.

  ---

  To improve code reusability and maintainability in Salesforce Commerce Cloud SFRA, defining a middleware function that performs common checks or operations and then applying this middleware across multiple routes is best practice. Middleware functions in SFRA allow for centralized logic that can be reused across different controllers or routes. This method enables developers to maintain a clean and organized codebase, where changes to the shared logic need to be made only once in the middleware function, rather than in each individual route. This approach ensures that the code is easier to test and manage.

• Question 69:

  Adeveloper cannot create a custom object in Business Manager because the attributes do not show. The developer can view the object but not the attributes.

  Which action should the developer take to resolve the problem?

  A. Change the data type of the attributes.
  B. Create an attribute Group with the desired attributes in it.
  C. Set the attributes to site-specific replicable.
  B. Create an attribute Group with the desired attributes in it.

  ---

  When attributes do not appear for a custom object in the Business Manager, it's typically because they are not organized into an attribute group. To resolve this issue, the developer should create an attribute group and include all the desired attributes within this group. This configuration allows the attributes to be properly displayed and managed in the Business Manager. This practice ensures that attributes are correctly categorized and accessible, which aligns with Salesforce B2C Commerce's data management strategies and administrative best practices.

• Question 70:

  In Log Center, a developer notes anumber of Cross Site Request Forgery (CSRF) log entries. The developer knows that this happens when a CSRF token is either not found or is invalid, and is working to remedy the situation as soon as possible.

  Which two courses of action might solve the problem? Choose 2 answers

  A. Add the token in the ISML template.
  B. Extend the CSRF token validity to avoid timeouts.
  C. Delete the existing CSRF whitelists in Business Manager.
  D. Add csrfProtection.generateToken as a middleware step in the controller.
  A. Add the token in the ISML template.
  D. Add csrfProtection.generateToken as a middleware step in the controller.

  ---

  To address issues with CSRF (Cross Site Request Forgery) where tokens are either missing or invalid, the developer can take the following actions: Add the token in the ISML template: This ensures that the CSRF token is included in forms or requests originating from the template, making them secure against CSRF attacks. Add csrfProtection.generateToken as a middleware step in the controller: Integrating this middleware ensures that a valid CSRF token is generated and validated for every request that passes through the controller, securing the application against CSRF attacks. This approach is proactive and systematic, ensuring CSRF protection is embedded within the application flow. These measures reinforce the security of the site by ensuring CSRF tokens are correctly handled, minimizing potential CSRF vulnerabilities.