Refer to the exhibit. A developer cannot reach the web application behind an NGINX load balancer. The developer sends a request to an application FQDN with cURL but gets an HTTP 502 response. Which action solves the problem?
A.
Fix errors in the server configuration, which is behind the load balancer.
B.
Bring up the load balancer to the active state.
C.
Fix errors in the cURL request sent by the client.
D.
Change the default gateway on the load balancer to an active one.
I was mistaken, it's A
after more research on this topic, it seems that the answer would come from the load balancer anyways: https://linuxhostsupport.com/blog/how-to-fix-502-bad-gateway-error-in-nginx/
The answer is definitely not D. 5xx errors are server errors. The load balancer wouldn't be reporting about an actual IP default gateway. That's a layer-3 routing concept that has nothing to do with HTTP response codes.
The HyperText Transfer Protocol (HTTP) 502 Bad Gateway server error response code indicates that the server, while acting as a gateway or proxy, received an invalid response from the upstream server.
Should be A
https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/502#:~:text=The%20HyperText%20Transfer%20Protocol%20(HTTP,response%20from%20the%20upstream%20server.
I think D makes most sense:
A would give 500/501 error
B would give 503 error
C would give 400 error
D makes sense on why cant reach the app behind the load balancear.
upvoted 2 times
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