Exam Professional Cloud Architect topic 8 question 5 discussion

C is right choice because using cellular connectivity will greatly improve the freshness of data used for analysis from where it is now, collected when the machines are in for maintenance. Streaming transport instead of periodic FTP will tighten the feedback loop even more. Machine learning is ideal for predictive maintenance workloads. A is not correct because machine learning analysis is a good means toward the end of reducing downtime, but shuffling formats and transport doesn't directly help at all. B is not correct because machine learning analysis is a good means toward the end of reducing downtime, and moving to streaming can improve the freshness of the information in that analysis, but changing the format doesn't directly help at all. D is not correct because machine learning analysis is a good means toward the end of reducing downtime, but the rest of these changes don't directly help at all.

A is not correct because machine learning analysis is a good means toward the end of reducing downtime, but shuffling formats and transport doesn't directly help at all. B is not correct because machine learning analysis is a good means toward the end of reducing downtime, and moving to streaming can improve the freshness of the information in that analysis, but changing the format doesn't directly help at all. C is correct because using cellular connectivity will greatly improve the freshness of data used for analysis from where it is now, collected when the machines are in for maintenance. Streaming transport instead of periodic FTP will tighten the feedback loop even more. Machine learning is ideal for predictive maintenance workloads. D is not correct because machine learning analysis is a good means toward the end of reducing downtime, but the rest of these changes don't directly help at all.

Question is asking what modification to recommend, B has one, C has 2, choice is whether cellular connectivity is required for each individual machine to be predictively maintained as everybody agrees on streaming part of the options provided. Are these 1% (200K out of 20M) rightly representing the whole population size (in this case 20M vehicle fleet). I am selecting C.

Increasing Fleet Cellular connectivity is critical to reduce the wait period. At present, about 200 K out of 20 million vehicles are connected to cellular network, allowing TerramEarth to collect data directly. Converting the format of raw data (CSV to Binary) may not help if you're collecting same amount of data in real time.

Option B is the best alignment with TerramEarth's goals: Reduce downtime Avoid higher inventory costs Enable real-time predictive analytics

i will vote b

Not A, D - migrate from FTP to SFTP does not help Not C - From the Case Study Solution Concept "A small subset of critical data is transmitted from the vehicles in real time to facilitate fleet management." - so cellular connectivity is already 100% B - less latency and volume of data transfer

B. Migrate from FTP to streaming transport, migrate from CSV to binary format, and develop machine learning analysis of metrics. Here's why: Migrating from FTP to streaming transport (e.g., using Google Cloud Pub/Sub) allows near real-time data transfer, significantly reducing the 3-week delay in reporting by enabling faster data collection and processing. Migrating from CSV to binary format improves data efficiency by reducing the size of the data payload, speeding up transfer and processing times. Developing machine learning analysis of metrics can help predict parts failures and optimize inventory management, further reducing downtime by ensuring that parts are available when needed.

b is slightly better than c because compreessed data will allow the pipe to be expanded. To Increase cell connectivity could overload the streaming process without the needed compression.

choosing B because it's gonna use Pub/Sub which is what Google wants in this case.

I don't C as a valid option, cause this might not depend on the company itself, but more on the client side, it will require a big investing and even maybe not possible because of signal reach to remote locations like fields outside of the cities. Option B focus on solving what the internal proceses first

PCA Samples A is not correct because machine learning analysis is a good means toward the end of reducing downtime, but shuffling formats and transport doesn't directly help at all. B is not correct because machine learning analysis is a good means toward the end of reducing downtime, and moving to streaming can improve the freshness of the information in that analysis, but changing the format doesn't directly help at all. C is correct because using cellular connectivity will greatly improve the freshness of data used for analysis from where it is now, collected when the machines are in for maintenance. Streaming transport instead of periodic FTP will tighten the feedback loop even more. Machine learning is ideal for predictive maintenance workloads. D is not correct because machine learning analysis is a good means toward the end of reducing downtime, but the rest of these changes don't directly help at all.

C makes no sense, how are you going to improve cellular connectivity with anything Google has to offer? That's a local carrier thing. B is the answer.

this question is from Goolge official PCA samples

Answer is B. C is wrong suggestion, think of cost and time for 80% cellular connection

answer is B, binary is faster

I'm voting B in this one. My take on it is that increasing the cellular connectivity will generate high costs, and is not the main culprit of the 3 weeks delay, that is the problem we are trying to solve. There are two parts of the introductory info that are key We can say that the info we receive is quite fresh, 9TB a day. That makes increasing connectivity not so useful. And we also see that the main culprit here is the ETL process. Which would be solved migrating to streaming and handling binary format instead of FTP with CSVs.