PrepIQ Commerce Developer Ultimate Exam, Exams of Technology

This exam evaluates a candidate’s ability to develop e-commerce platforms, focusing on tasks such as building product catalogs, setting up shopping carts, payment integrations, and optimizing user experiences.

Typology: Exams

2025/2026

Available from 05/11/2026

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PrepIQ Commerce Developer
Ultimate Exam
**Question 1.** Which tool is most commonly used to manage source code
versions for Commerce platform projects?
A) Subversion (SVN)
B) Git
C) Mercurial
D) CVS
Answer: B
Explanation: Git is the de-facto standard VCS for modern development, including
Commerce projects, providing branching, merging, and distributed workflows.
**Question 2.** In a typical Commerce SaaS architecture, which layer is
responsible for handling business logic such as pricing calculations?
A) Presentation layer
B) Data access layer
C) Service layer
D) Infrastructure layer
Answer: C
Explanation: The service layer encapsulates business rules like pricing,
discounts, and tax calculations, keeping them separate from UI and persistence
concerns.
**Question 3.** When configuring cache partitions, what is the primary purpose
of assigning a specific partition to a product catalog?
A) To reduce database storage size
B) To isolate cache entries for faster invalidation
C) To enable multi-currency support
D) To enforce user authentication
Answer: B
Explanation: Cache partitions group related entries, allowing targeted
invalidation (e.g., when a catalog changes) without flushing unrelated data.
**Question 4.** Which file typically defines the routing information for a custom
controller in an Adobe Commerce cartridge?
A) routes.xml
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Ultimate Exam

Question 1. Which tool is most commonly used to manage source code versions for Commerce platform projects? A) Subversion (SVN) B) Git C) Mercurial D) CVS Answer: B Explanation: Git is the de-facto standard VCS for modern development, including Commerce projects, providing branching, merging, and distributed workflows. Question 2. In a typical Commerce SaaS architecture, which layer is responsible for handling business logic such as pricing calculations? A) Presentation layer B) Data access layer C) Service layer D) Infrastructure layer Answer: C Explanation: The service layer encapsulates business rules like pricing, discounts, and tax calculations, keeping them separate from UI and persistence concerns. Question 3. When configuring cache partitions, what is the primary purpose of assigning a specific partition to a product catalog? A) To reduce database storage size B) To isolate cache entries for faster invalidation C) To enable multi-currency support D) To enforce user authentication Answer: B Explanation: Cache partitions group related entries, allowing targeted invalidation (e.g., when a catalog changes) without flushing unrelated data. Question 4. Which file typically defines the routing information for a custom controller in an Adobe Commerce cartridge? A) routes.xml

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B) web.xml C) routes.js D) controller.xml Answer: A Explanation: routes.xml maps URL patterns to controller classes, enabling the platform to invoke the correct logic for a request. Question 5. What is the recommended method to add a new attribute to the existing Product system object without modifying core code? A) Directly edit the product table in the database B) Use a custom object definition file (custom-object.xml) C) Create a new attribute in the Business Manager under “System Object Attributes” D) Override the Product class in a custom cartridge Answer: C Explanation: Business Manager allows administrators to extend system objects safely, persisting the new attribute without core code changes. Question 6. Which API type is best suited for retrieving a large list of orders with pagination support in a headless Commerce implementation? A) OCAPI (Shop) B) SOAP Web Services C) GraphQL D) REST (OCAPI Data) Answer: C Explanation: GraphQL enables clients to request exactly the fields they need and supports pagination, making it efficient for large datasets. Question 7. In the context of Commerce platform modules, what does DI stand for and what is its purpose? A) Data Integration – synchronizing external data sources B) Dependency Injection – providing loosely coupled component dependencies C) Direct Interface – exposing low-level APIs D) Distributed Indexing – improving search performance

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Question 11. What is the effect of enabling “cache busting” on static assets (e.g., CSS, JS) in a production environment? A) It compresses the files to reduce size B) It appends a version hash to the URL to force browsers to fetch the latest file C) It stores assets in the database for faster access D) It disables CDN usage Answer: B Explanation: Cache busting adds a unique query string or filename hash, ensuring browsers load updated assets after a deployment. Question 12. Which of the following is the correct order of steps when importing a product CSV file via Business Manager? A) Upload → Map fields → Validate → Import B) Validate → Upload → Map fields → Import C) Map fields → Upload → Validate → Import D) Upload → Validate → Map fields → Import Answer: D Explanation: The platform first uploads the file, then validates its structure, after which fields are mapped before the actual import. Question 13. In a headless Commerce architecture, which component typically handles authentication and token issuance for API calls? A) WebDAV server B) API gateway / Identity provider (e.g., OAuth server) C) Business Manager D) Content Slot Manager Answer: B Explanation: An API gateway or dedicated identity service issues JWT or OAuth tokens, securing API access in headless scenarios. Question 14. Which of the following best describes the purpose of a “pipeline” in a Commerce CI/CD workflow? A) To define database schema migrations

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B) To automate build, test, and deployment steps across environments C) To configure cache partitions D) To manage user roles and permissions Answer: B Explanation: Pipelines orchestrate the sequence of actions (build, test, deploy) that move code from development to production automatically. Question 15. When customizing the checkout flow, which controller is typically overridden to add a new step after the shipping method selection? A) Checkout-Start-Controller B) Checkout-Shipping-Controller C) Checkout-Confirm-Controller D) Checkout-PlaceOrder-Controller Answer: B Explanation: The Shipping controller handles the shipping method page; overriding it allows insertion of additional logic or UI before proceeding. Question 16. Which of the following is a recommended practice for handling large bulk updates to product inventory? A) Perform individual API calls for each product B) Use a single transaction with a bulk repository method C) Update directly in the database via SQL scripts D) Disable caching before the update and re-enable after Answer: B Explanation: Bulk repository methods batch updates efficiently, reducing overhead and minimizing lock contention. Question 17. In the context of Commerce search, what does “faceting” refer to? A) Indexing product images for faster retrieval B) Grouping search results by attribute values (e.g., brand, price range) C) Encrypting search queries for security D) Translating search terms into multiple languages

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Question 21. In Business Manager, where would you configure a new currency for a storefront? A) Site Preferences → Currencies B) Administration → Users → Currencies C) Catalog → Products → Currency Settings D) System → Global Settings → Currencies Answer: A Explanation: Site Preferences include the list of active currencies that the storefront can display and transact in. Question 22. Which of the following is the correct syntax to create a new custom object type using a JSON definition in Commerce Cloud? A) { "type": "CustomObject", "attributes": {...} } B) { "customObjectDefinition": { "id": "MyObject", "attributes": [] } } C) { "customObject": { "name": "MyObject", "fields": [] } } D) { "objectType": "myObject", "properties": [] } Answer: B Explanation: The platform expects a customObjectDefinition block that defines the ID and attribute list for the new object. Question 23. When integrating a third-party payment gateway synchronously, which of the following is a potential drawback? A) Reduced latency for the shopper B) Simpler error handling C) The storefront must wait for the gateway response before proceeding, possibly causing timeouts D) No need for SSL/TLS encryption Answer: C Explanation: Synchronous calls block the checkout flow; if the gateway is slow, the shopper may experience delays or timeouts. Question 24. Which logging level should be used for detailed troubleshooting information that should not be enabled in production?

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A) ERROR

B) WARN

C) INFO

D) DEBUG

Answer: D Explanation: DEBUG provides verbose output useful for developers but can impact performance and expose sensitive data if left on in production. Question 25. In the context of Commerce, what is a “pipeline” (also known as “pipeline script”) primarily used for? A) Defining the order of execution for server-side scripts during a request B) Managing database migrations C) Configuring CDN edge rules D) Scheduling background jobs Answer: A Explanation: Pipelines (or controller pipelines) allow developers to chain multiple scripts that run sequentially during a request lifecycle. Question 26. Which of the following is a primary advantage of using “WebDAV” for deploying code to a Commerce sandbox? A) Automatic code compilation B) Real-time synchronization of files without additional tools C) Built-in version control D) Ability to push Docker images directly Answer: B Explanation: WebDAV enables file-level upload and synchronization, allowing developers to edit files directly on the sandbox. Question 27. When creating a new content slot in Page Designer, which attribute determines where the slot appears on the page? A) slotId B) position C) region

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Explanation: Services are defined by endpoint details, authentication, and mapping; they do not reference a JavaScript controller. Question 31. When a developer wants to add a new UI component using Lightning Web Components (LWC) on the storefront, which folder should the component’s source files reside in? A) /cartridges/app/cartridge/static/default/lwc B) /cartridges/app/cartridge/scripts/lwc C) /cartridges/app/cartridge/templates/lwc D) /cartridges/app/cartridge/resources/lwc Answer: A Explanation: LWC source files (HTML, JS, CSS) are placed under the static/default/lwc directory of the cartridge. Question 32. Which attribute of a product variant typically determines its uniqueness in the catalog? A) SKU (Stock Keeping Unit) B) Description C) Price D) Image URL Answer: A Explanation: The SKU uniquely identifies each variant, allowing the system to differentiate between them. Question 33. What is the main security benefit of escaping output in ISML templates? A) Improves page load speed B) Prevents Cross-Site Scripting (XSS) attacks by ensuring user-provided data is not rendered as executable code C) Reduces database load D) Enables multilingual support Answer: B Explanation: Escaping transforms special characters into safe representations, mitigating XSS risks.

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Question 34. Which of the following describes the purpose of “reCAPTCHA” in Commerce forms? A) To encrypt form data in transit B) To validate that the submitter is a human, reducing spam and bot submissions C) To compress form payloads D) To store form data in a separate database Answer: B Explanation: reCAPTCHA challenges the user to prove they are not a bot, protecting forms from automated abuse. Question 35. In the context of Commerce, what does the term “headless” refer to? A) Removing the admin UI from the platform B) Decoupling the front-end presentation layer from the back-end commerce services, typically via APIs C) Running the platform without a database D) Using only command-line tools for management Answer: B Explanation: A headless architecture separates UI from business logic, allowing developers to build custom front-ends that consume APIs. Question 36. Which of the following is a characteristic of a “composable” commerce approach compared to a traditional monolithic platform? A) All features are tightly integrated in a single codebase. B) Functionality is delivered as independent, interchangeable services and APIs. C) Only one deployment environment is supported. D) No external integrations are possible. Answer: B Explanation: Composable commerce emphasizes modular services that can be mixed and matched, providing flexibility and scalability. Question 37. When configuring a new shipping method, which of the following must be defined to calculate shipping rates? A) Tax code

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D) An external micro-service that holds data Answer: B Explanation: Custom objects are platform-managed storage containers that developers can configure with custom attributes. Question 41. When a developer wants to override a core class method without modifying the original file, which mechanism should be used? A) Direct file edit B) Plugin (interceptor) with before/after/around methods C) Preference to point to a subclass D) Both B and C are valid options Answer: D Explanation: Both plugins and preferences allow method overriding; plugins are preferred for granular changes, while preferences replace the entire class. Question 42. In Business Manager, what is the effect of setting a product’s “Online” flag to false? A) The product is hidden from search indexes but still purchasable via direct URL B) The product is removed from all catalogs and cannot be added to carts via the storefront C) The product price becomes zero D) The product is archived permanently Answer: B Explanation: An offline product is excluded from catalog listings and cannot be added to the cart through normal storefront interactions. Question 43. Which of the following is a recommended practice for handling large image assets in a Commerce storefront? A) Store images directly in the database as BLOBs B) Serve images from a CDN and use responsive image tags (srcset) C) Embed base64-encoded images in HTML D) Host images on the same server without caching Answer: B

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Explanation: Using a CDN improves load times and scalability, while srcset delivers appropriate image sizes for different devices. Question 44. Which of the following statements about “Elastic Search” integration in Commerce is true? A) It replaces the relational database entirely. B) It provides full-text search and faceting capabilities, improving search relevance and performance. C) It only supports keyword search, not filters. D) It is only available in on-premise installations. Answer: B Explanation: Elastic Search is integrated as a search engine, offering advanced querying, relevance scoring, and faceting while the relational DB remains for transactional data. Question 45. When configuring a REST OCAPI Data API endpoint, which HTTP method is used to create a new basket? A) GET B) POST C) PUT D) DELETE Answer: B Explanation: POST is used to create resources; creating a basket involves sending a POST request to the basket endpoint. Question 46. Which of the following is the correct way to invalidate a specific cache entry programmatically? A) cache.clearAll() B) cache.invalidateKey('product:12345') C) cache.flush() D) cache.restart() Answer: B Explanation: invalidateKey removes a particular cache entry, leaving other cached data untouched.

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Question 50. Which of the following is a common cause of “Cart duplication” bugs after a user logs in? A) Not merging the anonymous cart with the authenticated user’s existing cart during login B) Disabling cookies in the browser C) Using a CDN for static assets D) Enabling HTTPS only on the checkout page Answer: A Explanation: Failing to merge carts results in two separate carts (guest and logged-in), causing duplication or lost items. Question 51. What is the primary purpose of the “Site Preferences” section in Business Manager? A) To manage user accounts B) To configure global settings such as default currency, locale, and SEO options for a site C) To edit product descriptions D) To schedule cron jobs Answer: B Explanation: Site Preferences hold configuration values that affect the entire site’s behavior and presentation. Question 52. Which of the following is NOT a typical step in the “order fulfillment” process? A) Picking B) Packing C) Shipping label generation D) Price rule evaluation Answer: D Explanation: Price rule evaluation occurs earlier (during checkout). Fulfillment focuses on physical handling and shipment. Question 53. When using the “GraphQL” API to retrieve a product’s name and price, which part of the query specifies the fields to return? A) mutation

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B) variables C) selection set (inside curly braces) D) schema definition Answer: C Explanation: The selection set defines exactly which fields (e.g., name, price) the client wants in the response. Question 54. Which of the following best describes the role of “Webhooks” in a Commerce integration scenario? A) They provide a UI for editing product data. B) They allow external systems to receive real-time HTTP POST notifications when specific events occur (e.g., order placed). C) They store static files for the storefront. D) They replace the need for API authentication. Answer: B Explanation: Webhooks push event data to external URLs, enabling real-time synchronization without polling. Question 55. In a multi-currency storefront, which of the following must be configured to ensure prices are displayed correctly? A) Currency conversion rates in Business Manager B) Only one price book per site C) Disabling the price rule engine D) Enabling the “single currency” mode Answer: A Explanation: Currency conversion rates allow the platform to convert base prices into the shopper’s selected currency. Question 56. Which of the following is the correct way to declare a dependency on another cartridge in a cartridge’s metadata file? A) B) require('my-cartridge'); C) import my-cartridge; D) my-cartridge

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Question 60. Which of the following is a recommended way to secure API endpoints that expose sensitive customer data? A) Use HTTP instead of HTTPS B) Require OAuth 2.0 access tokens with appropriate scopes C) Disable authentication for faster access D) Store credentials in query parameters Answer: B Explanation: OAuth 2.0 provides token-based authentication and scope control, protecting sensitive APIs. Question 61. When a developer needs to add a new field to the checkout address form, which component must be updated? A) The product detail page template B) The checkout address ISML template and corresponding form controller C) The order confirmation email template D) The inventory service configuration Answer: B Explanation: Adding a field requires updating both the ISML form markup and the controller that processes the submitted data. Question 62. Which of the following statements about “static routing” in Commerce is correct? A) Routes are defined only in code and cannot be changed at runtime. B) Static routes are configured in routes.xml and are loaded at application startup. C) Static routing relies on database tables for dynamic URL mapping. D) Static routes are automatically generated for every controller. Answer: B Explanation: routes.xml provides static URL-to-controller mappings that the platform reads when it starts. Question 63. Which of the following is the primary reason to use “bulk repository” operations when processing thousands of records?

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A) To automatically generate UI components B) To reduce the number of database round-trips and improve performance C) To enable real-time analytics D) To encrypt data at rest Answer: B Explanation: Bulk operations batch database actions, minimizing round-trips and lock contention. Question 64. In Business Manager, what does the “Export” function for a price book typically generate? A) A PDF price list B) A CSV file containing price book entries C) An XML schema definition D) A JSON file of product images Answer: B Explanation: Exporting a price book creates a CSV that can be edited and re-imported. Question 65. Which of the following is a key benefit of using “event-driven” architecture with webhooks in a Commerce integration? A) Synchronous processing ensures immediate data consistency. B) Decouples systems, allowing each to react to events independently and improve scalability. C) Eliminates the need for any authentication. D) Guarantees zero latency. Answer: B Explanation: Event-driven designs reduce tight coupling and enable asynchronous, scalable reactions to business events. Question 66. Which of the following is the correct way to reference a static image asset located at /static/default/img/logo.png in an ISML template? A) B) C)