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Exam AZ-304 topic 3 question 5 discussion

Actual exam question from Microsoft's AZ-304
Question #: 5
Topic #: 3
[All AZ-304 Questions]

You are reviewing an Azure architecture as shown in the Architecture exhibit. (Click the Architecture tab.)

The estimated monthly costs for the architecture are shown in the Costs exhibit. (Click the Costs tab.)

The log files are generated by user activity to Apache web servers. The log files are in a consistent format. Approximately 1 GB of logs are generated per day.
Microsoft Power BI is used to display weekly reports of the user activity.
You need to recommend a solution to minimize costs while maintaining the functionality of the architecture.
What should you recommend?

  • A. Replace Azure Synapse Analytics and Azure Analysis Services with SQL Server on an Azure virtual machine.
  • B. Replace Azure Synapse Analytics with Azure SQL Database Hyperscale.
  • C. Replace Azure Data Factory with CRON jobs that use AzCopy.
  • D. Replace Azure Databricks with Azure Machine Learning.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by DIMONANDREY at Dec. 3, 2020, 2:31 p.m.

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gcpjay
Highly Voted 4 years, 5 months ago
The question states that "The log files are in a consistent format." So, no ETL is required. The files can be copied directly using the AzCopy command.
upvoted 71 times
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JDA
Highly Voted 4 years, 3 months ago
The answer is C. In the real world, I'd be asking some hard questions about why ADF was costing so much with that traffic volume ...
upvoted 22 times
tteesstt
3 years, 7 months ago
I made a mistake once and kept ADF running for 2 days. The pipeline was pretty basic - to copy logs to SQL Database. The bill for those 2 days was over 100$.
upvoted 2 times
ShivaUdari
1 year, 8 months ago
I left Dedicated SQL Pool running for 2 days and it costed 500$ 🥲
upvoted 1 times
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GaneshPP
Most Recent 2 years, 7 months ago
Even though C is the right answer, its like recommending - don't use cloud.
upvoted 1 times
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pingpongset
2 years, 9 months ago
"Replace Azure Data Factory with CRON jobs that use AzCopy." but where are the Cron jobs using AzCopy running?
upvoted 1 times
ShivaUdari
1 year, 8 months ago
Majority Apache Servers on Linux, so CRON can be used.
upvoted 1 times
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AubinBakana
2 years, 9 months ago
Selected Answer: C
The fact that they are using ADF & Synapse Analysis is a huge alert. They both pretty much do the same in most case. A good place to start to look. And if you are just copying log files to ADL, of course Azure Data Factory with CRON jobs has to be the answer
upvoted 2 times
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Dawn7
3 years, 2 months ago
Selected Answer: C
Answer is c
upvoted 1 times
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plmmsg
3 years, 2 months ago
Selected Answer: C
AZCopy
upvoted 1 times
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ShivaNatarajan
3 years, 5 months ago
If not ADF which service is going to be used to orchestrate this data pipeline ?
upvoted 1 times
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Dpejic
3 years, 5 months ago
Appere on exam 23-dec-2021
upvoted 3 times
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syu31svc
3 years, 8 months ago
I'd take C for 2 reasons 1) Data Factory is the most expensive service used so it should be replaced 2) Log files in consistent format so just use AzCopy will do
upvoted 4 times
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dkltruong88
3 years, 8 months ago
Was in exam today 1-10-2021. I passed with score 896. I chose C
upvoted 3 times
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Tachinsky
3 years, 8 months ago
Correct. Also appears in the practice questions for AZ304
upvoted 2 times
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Gautam1985
3 years, 9 months ago
Correct
upvoted 1 times
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StarkStrange
3 years, 9 months ago
Have used a similar arch in one of our use case. ADF doesn't cost this much, anyways, with this bill probably the given ans is correct.
upvoted 1 times
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az_architect
3 years, 9 months ago
Since, ADF is being used for trivial task of just copying the log files already in consistent format. Hence, it need to go to save the cost.
upvoted 3 times
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AravindITGuy
3 years, 11 months ago
if we notice in the diagram Azure Data Factory is where the most money is spent, and the solution is to minimize costs hence we need to look for a solution that deals with data factory and makes sense so I would say C is the right answer.
upvoted 4 times
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atwind
4 years, 3 months ago
https://medium.com/@nimishrao/moving-a-file-in-seconds-to-your-azure-data-lake-generation-2-using-azcopy-6dde114258
upvoted 2 times
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C (25%)
B (20%)
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