Exam Professional Data Engineer topic 1 question 194 discussion

Actual exam question from Google's Professional Data Engineer

Question #: 194
Topic #: 1

[All Professional Data Engineer Questions]

An online brokerage company requires a high volume trade processing architecture. You need to create a secure queuing system that triggers jobs. The jobs will run in Google Cloud and call the company's Python API to execute trades. You need to efficiently implement a solution. What should you do?

A. Use a Pub/Sub push subscription to trigger a Cloud Function to pass the data to the Python API.
B. Write an application hosted on a Compute Engine instance that makes a push subscription to the Pub/Sub topic.
C. Write an application that makes a queue in a NoSQL database.
D. Use Cloud Composer to subscribe to a Pub/Sub topic and call the Python API.

Show Suggested Answer

Suggested Answer: A 🗳️

by PhuocT at Sept. 2, 2022, 7:58 p.m.

Comments

Submit Cancel

lucaluca1982

Highly Voted 2 years, 2 months ago

A and D are both good. I go for A because we have high volume and easy to scale and optmize cost

upvoted 6 times

...

kajitsu

Most Recent 11 months, 3 weeks ago

Selected Answer: D

D is the answer.

upvoted 2 times

nadavw

9 months, 3 weeks ago

There is no need for a composer to call a Python API only - it's an overkill.

upvoted 2 times

...

squishy_fishy

1 year, 7 months ago

Answer is D, at work we use solution A for low volume of Pub/Sub messages and Cloud function, and using D Composer for high volume Pub/Sub messages.

upvoted 3 times

...

musumusu

2 years, 3 months ago

Answer A: assume, Company wants to buy immediately in same second if stock goes down or up. Somehow, it is connected to PubSub as SINK connector, then immediately there is PUSH to subcriber (cloud function) that is connected to their python API (internal application) that makes the purchase.

upvoted 4 times

...

AzureDP900

2 years, 5 months ago

A. Use a Pub/Sub push subscription to trigger a Cloud Function to pass the data to the Python API.

upvoted 1 times

...

zellck

2 years, 6 months ago

Selected Answer: A

A is the answer.

upvoted 3 times

...

GCPCloudArchitectUser

2 years, 7 months ago

Selected Answer: A

Because trading platform requires securely transmission to queuing If you use cloud compose then we need some other job to trigger composer … would that be cloud composer api or cloud function …

upvoted 4 times

...