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How can a microservices architecture ensure secure communication when services are deployed across multiple cloud providers?

hard🚀 Application Q8 of 15
Cybersecurity - Security Architecture and Design
How can a microservices architecture ensure secure communication when services are deployed across multiple cloud providers?
ARely on IP address filtering only
BImplement mutual TLS authentication between services
CDisable firewalls to allow free traffic
DUse unencrypted HTTP to reduce overhead
Step-by-Step Solution
Solution:

  1. Step 1: Identify secure communication methods across clouds

    Mutual TLS ensures both services verify each other's identity and encrypt data.

  2. Step 2: Evaluate other options for security risks

    Unencrypted HTTP, disabling firewalls, and IP filtering alone are insecure or insufficient.

  3. Final Answer:

    Implement mutual TLS authentication between services -> Option B

  4. Quick Check:

    Cross-cloud security = Mutual TLS [OK]
Quick Trick: Mutual TLS secures multi-cloud service communication [OK]
Common Mistakes:
MISTAKES
  • Choosing unencrypted HTTP for speed
  • Disabling firewalls weakens security
  • Relying only on IP filtering

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