200-901 Software Development and Design Practice Question
In a microservices architecture, which of the following is a key characteristic compared to a monolithic architecture?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Services communicate via lightweight protocols such as HTTP/REST.
Microservices are independently deployable, scalable, and developed by small teams, whereas a monolith is a single deployable unit.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Changes require rebuilding the entire application.
Why it's wrong here
Microservices can be updated independently.
- ✓
Services communicate via lightweight protocols such as HTTP/REST.
Why this is correct
Microservices typically communicate via HTTP/REST, messaging queues, etc.
- ✗
The entire application is deployed as a single unit.
Why it's wrong here
This describes a monolith.
- ✗
All services share the same database.
Why it's wrong here
Microservices often have their own databases (database per service).
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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