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Why is testing distributed systems more complex than testing a single application?

easy📝 Conceptual Q11 of 15
Microservices - Testing Microservices
Why is testing distributed systems more complex than testing a single application?
ABecause distributed systems do not require any testing
BBecause distributed systems have many parts communicating over unreliable networks
CBecause distributed systems use only one programming language
DBecause distributed systems run on a single machine
Step-by-Step Solution
Solution:
  1. Step 1: Understand distributed system structure

    Distributed systems consist of multiple components running on different machines communicating over networks.
  2. Step 2: Identify testing challenges

    Network communication can be unreliable, causing delays, message loss, or failures, making testing more complex than single applications.
  3. Final Answer:

    Because distributed systems have many parts communicating over unreliable networks -> Option B
  4. Quick Check:

    Network complexity = C [OK]
Quick Trick: Focus on network communication challenges in distributed systems [OK]
Common Mistakes:
  • Thinking distributed systems run on one machine
  • Assuming no testing is needed
  • Believing language choice affects testing complexity

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