Exam Professional Cloud Network Engineer topic 1 question 60 discussion

Correct Answer is (A): Path matcher constraints Path matchers and path rules have the following constraints: A path rule can only include a wildcard character (*) after a forward slash character (/). For example, /videos/* and /videos/hd/* are valid for path rules, but /videos* and /videos/hd* are not. Path rules do not use regular expression or substring matching. For example, path rules for either /videos/hd or /videos/hd/* do not apply to a URL with the path /video/hd-abcd. However, a path rule for /video/* does apply to that path. https://cloud.google.com/load-balancing/docs/url-map-concepts#pm-constraints

C is correct.

The correct answer is C. Leave the directory structure as-is, create a URL map and leverage a path rule such as /[a-z]{2}/video and /[a-z]{2}/audio. This solution meets all of the requirements: It does not require rearranging the directory structure. It uses a URL map to direct traffic to the correct backend bucket. It uses a path rule to match the language code in the URL to the correct backend bucket. It minimizes operational overhead by using a single URL map and path rule to handle all of the different languages. The other options are incorrect because:

With this solution, the directory structure can be reorganized so that all audio files are in one folder and all video files are in another folder. Then, a URL map can be created that maps requests to the appropriate backend storage bucket based on the path. Using a path rule such as /video/* and /audio/* will route traffic to the appropriate storage bucket based on the path of the request. This solution minimizes operational overhead and is a scalable solution as more languages can be added to the directory structure with ease. Option B is not a recommended solution as it requires creating DNS hostname entries for each bucket, which can be complex and cumbersome to manage. Option C is not optimal as it requires more complex path rules and may not be as scalable for future language additions. Option D is not recommended as it does not provide a clear separation of audio and video files, and could lead to potential conflicts in the future.

A. Rearrange the directory structure, create a URL map and leverage a path rule such as /video/* and /audio/*.

when a request is sent for http://example.net/video/../abc, the load balancer responds with a 302 redirect to http://example.net/abc. Most clients then react by issuing a request to the URL returned by the load balancer (in this case, http://example.net/abc). This 302 redirection isn't logged in Cloud Logging. https://cloud.google.com/load-balancing/docs/url-map-concepts?hl=en So C & D is not correct, B is not related with URL maps, so A.

Answer is A. Though D doesn't seem to be specifically excluded in their documentation as it really only talks about it being after a / and not specifically the end /, I just tested it and it only allows me to put the wildcard at the end.

Answer is : A

200% A For those who claim it's D, I assure you it is not. The reason is that you can only use a '*' at the end of a path rule followed by a '/'. So a path rule consisting of a '*' MUST end like '....../*' and that's the rule!

A is right

I would go with D There is probably a lot of links everywhere, so rearranging the directory structure may not be easy With D, you do not change any of the code, SEO is left unaffected too, and you can map the old paths to the right buckets

Ans - A