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Exam Associate Cloud Engineer topic 1 question 139 discussion

Actual exam question from Google's Associate Cloud Engineer
Question #: 139
Topic #: 1
[All Associate Cloud Engineer Questions]

The core business of your company is to rent out construction equipment at large scale. All the equipment that is being rented out has been equipped with multiple sensors that send event information every few seconds. These signals can vary from engine status, distance traveled, fuel level, and more. Customers are billed based on the consumption monitored by these sensors. You expect high throughput `" up to thousands of events per hour per device `" and need to retrieve consistent data based on the time of the event. Storing and retrieving individual signals should be atomic. What should you do?

  • A. Create a file in Cloud Storage per device and append new data to that file.
  • B. Create a file in Cloud Filestore per device and append new data to that file.
  • C. Ingest the data into Datastore. Store data in an entity group based on the device.
  • D. Ingest the data into Cloud Bigtable. Create a row key based on the event timestamp.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by filco72 at Aug. 11, 2020, 2:14 p.m.

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hiteshrup
Highly Voted 3 years, 11 months ago
Answer: D Keyword need to look for - "High Throughput", - "Consistent", - "Property based data insert/fetch like ngine status, distance traveled, fuel level, and more." which can be designed in column, - "Large Scale Customer Base + Each Customer has multiple sensor which send event in seconds" This will go for pera bytes situation, - Export data based on the time of the event. - Atomic o BigTable will fit all requirement. o DataStore is not fully Atomic o CloudStorage is not a option where we can export data based on time of event. We need another solution to do that o FireStore can be used with MobileSDK. So go with Option D: Big Table
upvoted 51 times
[Removed]
3 years, 11 months ago
Its File store not firestore. But still, the argument is correct here as file store will not be automatic like cloud store that no SQL. If it would be Firestore I would have gone with it, then big data for throughout v/s cost.
upvoted 4 times
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Hjameel
Highly Voted 4 years ago
D is the best answer , Cloud Bigtable
upvoted 8 times
har_riy
3 years, 6 months ago
Simple analogy. Information every few seconds --> Time Series --> Big Table
upvoted 6 times
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SHAAHIBHUSHANAWS
Most Recent 8 months, 2 weeks ago
Selected Answer: D https://cloud.google.com/bigtable/docs/overview
upvoted 1 times
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Linhtinh603
9 months, 1 week ago
Answer D is the best for high throughput and IoT, but I concern about creating a row key based on the event timestamp, will it be leading a hotspots issue?
upvoted 2 times
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Captain1212
1 year ago
Selected Answer: D
D is the right answer, as its can help with Automatically
upvoted 1 times
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Tosssha
1 year, 6 months ago
ReadModifyWriteRow requests are atomic: https://cloud.google.com/bigtable/docs/writes
upvoted 1 times
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xaqanik
1 year, 6 months ago
it say any type of information. it means there can be an image file for instance. so, Bigtable is the best fit for this scenario
upvoted 1 times
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alex000
1 year, 8 months ago
Selected Answer: C
Answer: C key work: atomic transaction https://cloud.google.com/datastore/docs/concepts/overview
upvoted 2 times
[Removed]
1 year, 4 months ago
high throughput == Bigtable, hence the answer is D
upvoted 1 times
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Cornholio_LMC
1 year, 11 months ago
had this question today
upvoted 5 times
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tomis2
2 years, 1 month ago
Selected Answer: D
Timeseries + IoT = Bigtable
upvoted 4 times
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AzureDP900
2 years, 2 months ago
This is related to IoT , it is no sql means BigTable. D is right
upvoted 2 times
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pfabio
2 years, 3 months ago
Selected Answer: D
D - Ideal for use cases such as personalization, ad tech, fintech, digital media, and IoT https://cloud.google.com/bigtable
upvoted 3 times
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JelloMan
2 years, 3 months ago
Selected Answer: D
Big table for the exact reasons as @hitrshrup mentioned. Time related data flowing in and out will point you directly to BigTable without reading anything else
upvoted 1 times
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wael_tn
2 years, 4 months ago
Selected Answer: D
When we want to store data based on imestamp => Cloud Bigtable
upvoted 1 times
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Akash7
2 years, 4 months ago
Answer is D, large streaming data = bigtable
upvoted 1 times
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zaxma
2 years, 5 months ago
Selected Answer: C
I vote c with DataStore (maybe even better with firestore includs pubsub ability) Looks like the internet agrees with me.
upvoted 2 times
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alaahakim
2 years, 9 months ago
Answer: D
upvoted 2 times
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