Alibaba ACA-Operator Exam - Topic 6 Question 23 Discussion

Actual exam question for Alibaba's ACA-Operator exam

Question #: 23
Topic #: 6

A developer has written a web application using a microservice architecture,

in such an architecture, the client (web browser or mobile application) first initiates a request. The request first reaches the load balancer, then goes through an authentication service, a billing service, then requests a resource, and finally a result is returned. How many spans does such a call chain

consist of?

Show Suggested Answer

Suggested Answer: C

1-request, 2-load balancer, 3-authentication service, 4-billing service, 5- resource request

by Casie at May 09, 2022, 01:18 PM

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Oneida

4 months ago

No way, I thought it was 6!

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Rolf

4 months ago

I thought it was 4, but I see the reasoning for 5.

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Terrilyn

4 months ago

Wait, are we counting the load balancer too?

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Paz

4 months ago

Totally agree, 5 makes sense!

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Carmelina

5 months ago

There are 5 spans in that call chain.

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Marleen

5 months ago

This makes sense to me. Okta is handling the initial Kerberos ticket decryption and user lookup, but the actual authentication is being performed by the IWA Agent and AD Agent, which are verifying the user's identity against Active Directory. I'm confident I can answer this correctly.

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Dean

5 months ago

Okay, let's see. Since the property has a limited set of valid values, I'd probably go with creating a lookup property so users can easily select the right one from a dropdown. That seems like the most user-friendly option.

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