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Why do service meshes typically deploy sidecar proxies alongside microservices instead of embedding traffic management directly into the services?

hard📝 Conceptual Q10 of 15
Microservices - Service Mesh
Why do service meshes typically deploy sidecar proxies alongside microservices instead of embedding traffic management directly into the services?
ATo reduce network latency by bypassing the application layer
BBecause modifying microservices code is impossible in containerized environments
CTo separate traffic control from business logic, enabling independent updates and consistent policy enforcement
DBecause sidecar proxies replace the need for service discovery
Step-by-Step Solution
Solution:

  1. Step 1: Understand sidecar proxy purpose

    Sidecars handle networking concerns separately from application logic.

  2. Step 2: Benefits of separation

    This separation allows independent upgrades and consistent enforcement of policies without changing service code.

  3. Final Answer:

    To separate traffic control from business logic, enabling independent updates and consistent policy enforcement -> Option C

  4. Quick Check:

    Sidecars separate concerns for flexibility [OK]
Quick Trick: Sidecars separate traffic control from app code [OK]
Common Mistakes:
MISTAKES
  • Believing code modification is impossible in containers
  • Assuming sidecars reduce latency by bypassing app
  • Thinking sidecars replace service discovery

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