Software ArchitectureSystem DesignMock Exam
Interactive Mock Test: Architecture Foundations & Core Patterns
TT
TopicTrick Team
What This Mock Exam Covers
This 20-question mock test covers the first two phases of the Software Architecture Hub: Foundations & Evolution and Core Architecture Patterns. You will be tested on Client-Server, MVC, Layered Architecture, SOA, Domain-Driven Design, Monolith vs. Microservices tradeoffs, Modular Monoliths, Clean Architecture, and Pipe & Filter patterns.
Many of these questions are scenario-based to mimic real-world system design interviews. Aim to complete this within 30 minutes.
Section 1: Foundations & Evolution
1. A legacy desktop application directly connects to a centralized database over a local network, with no application server in between. What pattern is this?
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2. In the MVC architecture pattern, which component is strictly responsible for handling user input and deciding what action to take?
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3. You are designing a standard 3-Tier Layered application. What is the fundamental restriction concerning how layers communicate?
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4. Which of the following best describes the primary role of an Enterprise Service Bus (ESB) in Service-Oriented Architecture (SOA)?
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5. A developer tells you they are using the 'Singleton pattern' to structure their new scalable microservices platform. What concept are they mostly likely confusing?
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6. In a Peer-to-Peer (P2P) network like BitTorrent, how does the network handle an sudden surge of tens of thousands of users requesting the same file?
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7. You are building an e-commerce system using Domain-Driven Design. The Sales team requires a 'Product' model with price and SEO attributes. The Warehouse team requires a 'Product' model with dimensions and shelf location. What is the DDD approach to this?
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8. In Domain-Driven Design, what distinguishes an 'Entity' from a 'Value Object'?
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Section 2: Core Architecture Patterns
9. A startup of 4 engineers is building a new application from scratch. They decide to use a Microservices Architecture with 12 distinct services to ensure future scalability. What is the most likely outcome according to modern architectural consensus?
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10. According to Conway's Law, what happens if an organization structure with three heavily siloed backend teams attempts to build a unified Monolithic application?
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11. What is the defining characteristic of a 'Modular Monolith'?
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12. You need to upgrade your framework, but your core business logic is heavily coupled to the legacy framework's ORM and HTTP request objects. Which architecture pattern explicitly prevents this problem?
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13. In Hexagonal Architecture (Ports and Adapters), what is the difference between a 'Driving' port and a 'Driven' port?
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14. Visual Studio Code allows third-party developers to add massive functionality without modifying the editor's core binary. Which architectural pattern enables this?
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15. An ETL (Extract, Transform, Load) pipeline receives a raw CSV file, normalizes the dates, filters out bad records, and writes to a database. Which pattern perfectly describes this data flow?
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Section 3: Failure Modes & Tradeoffs
16. The developers at your company complain that they must open 5 different observability dashboards (Jaeger, Datadog, AWS, etc.) just to figure out why a single user sign-up failed. This is a classic warning sign of what?
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17. Two microservices (Orders and Shipping) both connect directly to the same exact Postgres `orders_db` and read/write the same tables. What is this anti-pattern called?
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18. In a classic 3-Tier Web Application, a request comes in to view a user profile. The Controller calls a Service, which calls a Repository, which runs a SQL query. The data flows backward through all layers entirely unmodified. What is this anti-pattern called?
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19. A team wants to start using Clean Architecture, but the Tech Lead warns them it is not suitable for their project. Under what condition is the Tech Lead correct?
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20. What was Amazon Prime Video’s primary reason in 2023 for migrating their monitoring service back from Microservices/Serverless to a Monolithic architecture?
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Summary
How did you do? A score of 15 or higher means you have a solid grasp of foundational architecture patterns.
Ready for the next step? Test your system design knowledge for massively scaled, fault-tolerant networks in our next mock exam: Interactive Mock Test 2: Distributed Systems & Resilience.