Chapter 6 – Test Tools
Service Mesh – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A dedicated infrastructure layer for handling service-to-service communication in microservices, providing routing, security, and observability.
In simple words
A layer under microservices that handles their talking-to-each-other.
Exam tip
Istio and Linkerd are the two leading service mesh implementations.
Related terms
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