Exam Professional Cloud Architect topic 1 question 131 discussion

Answer should be D, https://cloud.google.com/load-balancing/docs/https/setting-up-https-serverless#gcloud:-cloud-functions https://cloud.google.com/blog/products/networking/better-load-balancing-for-app-engine-cloud-run-and-functions

IMHO it is d), not b). Reason is that you don't need Cloud Spanner just to store user data - FireStore is the better solution. Additionally, I see no indications concerning the requirement to use GKE... Please correct me when I am wrong.

C. Even though Cloud CDN is not a storage system, option C implies that static content is served through a CDN-enabled LB (usually backed by Cloud Storage). This fits well with the requirement for cost-efficiency, scalability, and LB. Option D is valid too, but it doesn’t mention LD and uses Firestore, which may not fit structured user data. Therefore, C remains the best match for Google’s exam logic.

This question doesn't have a correct answer!!! Re-read the question again "You want to leverage Cloud Load Balancing" Option D doesn't come with load balancer options plus Cloud function is good for event-triggering tasks not necessarily for sustained high-traffic API endpoints. Option C can work but there is no storage provided! Cloud CDN is for Caching, NOT for permanent storage.

This question is more about costs so Cloud storage+firestore

B is absolutely diabolical for "Cost effective"

As per ChatGPT , answer is C

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Answer is D. Solution should be cost effective and highly reliable. Cloud storage and firestore is suitable .

absolutely D because kubernetes is not cost effective. cloud functions are a better shot

CDN is for caching. For static website hosting a storage bucket is a good choice, thus A and C are eliminated. B, Cloud Spanner, my nightmare. I accidentally created an empty cloud spanner and it burned like 30-40 USD per day! I got a huge amount of billing from GCP that month! No way to be cost-effective. D, Cloud Functions are good for simple API services and have no cost if not in use. SQL or NoSQL for user data is not a strong factor here, either should be fine.

The correct answer with the lowest cost is D

in B) it says zonal GKE with worker nodes in multiple zones how zonal and in multiple zones?! And that 100% eliminate B

Actually it is B. Highly reliable, using Load Balancer, Spikes and several API. D is less reliable, as functions will take long to cold start and will have a time out and not using LB. The only draw back is cost.

User data in a relational database is not a good option, A B C are ruled out. Left with D - User data in Firestore.

D is the correct option since CDN is not for storage of html content, so you have only the option B and D. And the option B required that you have a containerezed application in other way, you can't use k8s. So the option is D.

D is the correct answer 1. Cloud CDN is not meant for storing contents. It can only cache but not act as the source-of-truth and moreover the question tells that the user traffic is less. Cloud CDN performs better when the user traffic is high 2. The spikes are very rare and the app gets low traffic most of the time. That said, putting a cluster is an expensive option. choosing a serverless supported app-platform (Cloud Run) and serverless supported DB (Firestore) makes perfect choice here to handle cost during low traffic and also handle any incoming sudden spikes