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Issue description: Feedback from Leon Levy : llevy@redhat.com

  ad0008l-3.1 + in the lab: Lab: Managing Traffic with OpenShift Service Mesh

the requirement for exercise 4 :

Header-based routing Route requests with user-agent: Internal-QA-Team/1.0 header to the reviews-v3 service (QA testing only)

in my solution, which the grading system accepted, is:

• match:
   - headers:
   user-agent:
   exact: Internal-QA-Team/1.0

differs from the solution
 - match: 1
 - headers:
 user-agent:
 regex: ".Internal."

Both would work as intended, but I believe my solution would be more correct, since it is enforcing a specific header, not a header with regex, since a different header than what is specified could be used as well in that instance, bypassing the header routing specifications.

I am wondering if the certification exam is as ambiguous as well.

Steps to reproduce:

Workaround:

Expected result: