Exam Professional Cloud Architect All Questions

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Exam Professional Cloud Architect topic 1 question 131 discussion

Actual exam question from Google's Professional Cloud Architect

Question #: 131
Topic #: 1

[All Professional Cloud Architect Questions]

Your company wants you to build a highly reliable web application with a few public APIs as the backend. You don't expect a lot of user traffic, but traffic could spike occasionally. You want to leverage Cloud Load Balancing, and the solution must be cost-effective for users. What should you do?

A. Store static content such as HTML and images in Cloud CDN. Host the APIs on App Engine and store the user data in Cloud SQL.
B. Store static content such as HTML and images in a Cloud Storage bucket. Host the APIs on a zonal Google Kubernetes Engine cluster with worker nodes in multiple zones, and save the user data in Cloud Spanner.
C. Store static content such as HTML and images in Cloud CDN. Use Cloud Run to host the APIs and save the user data in Cloud SQL.
D. Store static content such as HTML and images in a Cloud Storage bucket. Use Cloud Functions to host the APIs and save the user data in Firestore.

Show Suggested Answer

Suggested Answer: D 🗳️

by XDevX at July 1, 2021, 5:55 a.m.

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TotoroChina

Highly Voted 4 years ago

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

upvoted 55 times

dguillenca

4 years ago

D not use CDN, is D correct answer?

upvoted 1 times

PeppaPig

3 years, 12 months ago

CDN is not needed here. You don't need to service users globally thus latency and locality isn't critical

upvoted 6 times

letonphat

3 years, 8 months ago

IMHO CDN is not storage solution to store static html or image

upvoted 5 times

Warlock7

3 years, 5 months ago

You should look at this https://cloud.google.com/storage/docs/caching

upvoted 1 times

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diluviouniv

3 years, 11 months ago

Spanner is expensive

upvoted 10 times

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BrunoTostes

3 years, 8 months ago

but is it Cloud Functions used for hosting APIs?

upvoted 5 times

turbo8p

2 years, 8 months ago

Can be hosted. It's cost effective since you get charged on per call basis. If no traffic then no cost will be charged.

upvoted 4 times

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parthkulkarni998

1 year, 6 months ago

If CF you want to use for hosting APIs why not option C. to use CloudRun? It too autoscales to 0 instances for no traffic..

upvoted 1 times

huuthanhdlv

1 year, 1 month ago

CE using cloud CDN to host static contents which is incorrect.

upvoted 1 times

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mikesp

3 years, 8 months ago

IMHO, i agree with you. Furthermore: Cloud Storage buckets are a good choice for static web content. Cloud storage buckets behave like a CDN Network: https://cloud.google.com/storage/docs/caching So it is lower cost than CDN.

upvoted 8 times

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XDevX

Highly Voted 4 years ago

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.

upvoted 18 times

Andrea67

3 years, 7 months ago

agree with u

upvoted 3 times

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tosinogunfile

1 year, 6 months ago

That's correct

upvoted 1 times

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tosinogunfile

1 year, 6 months ago

That's correct

upvoted 1 times

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francisco94

Most Recent 3 months ago

Selected Answer: D

D correct answer

upvoted 1 times

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apb98

3 months, 2 weeks ago

Selected Answer: C

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.

upvoted 1 times

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halifax

4 months, 1 week ago

Selected Answer: C

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.

upvoted 1 times

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plumbig11

6 months, 1 week ago

Selected Answer: D

This question is more about costs so Cloud storage+firestore

upvoted 2 times

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VegasDegenerate

6 months, 2 weeks ago

Selected Answer: D

B is absolutely diabolical for "Cost effective"

upvoted 2 times

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NitinV

1 year ago

As per ChatGPT , answer is C

upvoted 1 times

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mshafa

1 year ago

xcvxcv

upvoted 1 times

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Diwz

1 year, 3 months ago

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

upvoted 1 times

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krokskan

1 year, 4 months ago

Selected Answer: D

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

upvoted 1 times

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convers39

1 year, 6 months ago

Selected Answer: D

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.

upvoted 4 times

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AWS_Sam

1 year, 6 months ago

The correct answer with the lowest cost is D

upvoted 1 times

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tamer_m_Saleh

1 year, 6 months ago

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

upvoted 2 times

Gino17m

1 year, 2 months ago

"zonal" is for conrol plane, workers can be in multiple zones in multi-zone zonal cluster - the wording is just strange, see: https://cloud.google.com/kubernetes-engine/docs/how-to/creating-a-zonal-cluster Nevertheless B is still incorrect

upvoted 1 times

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Jconnor

1 year, 7 months ago

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.

upvoted 1 times

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thewalker

1 year, 8 months ago

Selected Answer: D

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

upvoted 1 times

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MiguelMiguel

1 year, 8 months ago

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.

upvoted 1 times

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