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Databricks Certified Data Analyst Associate Exam - Topic 3 Question 13 Discussion

Actual exam question for Databricks's Databricks Certified Data Analyst Associate exam
Question #: 13
Topic #: 3
[All Databricks Certified Data Analyst Associate Questions]

Which of the following approaches can be used to ingest data directly from cloud-based object storage?

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Suggested Answer: A

Option A uses theSELECT DISTINCTstatement to remove duplicate rows from thetable_bronzeand create a new tabletable_silverwith the deduplicated data.This is the correct way to deduplicate data using Spark SQL12. Option B simply inserts all the rows fromtable_bronzeintotable_silver, without removing any duplicates. Option C is not a valid syntax for Spark SQL, as there is noMERGE DEDUPLICATEstatement. Option D appends all the rows fromtable_bronzeintotable_silver, without removing any duplicates. Option E overwrites the existing data intable_silverwith the data fromtable_bronze, without removing any duplicates.Reference:Delete Duplicate using SPARK SQL,Spark SQL - How to Remove Duplicate Rows


by Jettie at May 13, 2024, 02:38 AM

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Nobuko
3 months ago
B sounds familiar, but I’m not sure it’s correct.
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Marge
4 months ago
I agree with E, external tables are super useful!
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Merrilee
4 months ago
Wait, is C really an option? That seems off.
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Darrin
4 months ago
I thought it was A, but I guess I was wrong.
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Terrilyn
4 months ago
Definitely E, that's the way to go!
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Queen
5 months ago
I vaguely recall that DBFS is related to Databricks, but I can't remember if it should be used with FROM or PATH.
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Bettyann
5 months ago
I feel like option C is definitely wrong; we can ingest data from cloud storage, right?
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Rosina
5 months ago
I'm not entirely sure, but I remember something about specifying the path correctly. Was it FROM or LOCATION?
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Kristel
5 months ago
I think option E sounds familiar because we talked about using the LOCATION clause for external tables in our practice sessions.
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Deonna
5 months ago
The key here is understanding how external tables work. Option E seems to provide the most direct way to access the data in cloud storage.
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Mignon
5 months ago
Option C seems a bit too extreme. I'm confident that we can directly ingest data from cloud storage, we just need to use the right approach.
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Thaddeus
5 months ago
Hmm, I'm a bit confused. Are options A and D also valid approaches? I'll need to double-check the documentation to be sure.
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Christoper
5 months ago
This looks straightforward. I think option E is the way to go - creating an external table and specifying the object storage path in the LOCATION clause.
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Annice
5 months ago
I think the key is to focus on the factors that directly impact the system's capacity and performance. The other options seem more peripheral.
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Marva
5 months ago
Hmm, I'm a bit unsure about this one. I'm trying to decide between the Monitoring Dashboard and the Administration Console. I'll need to think it through carefully.
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Minna
5 months ago
Wait, what's the difference between decision testing and condition testing again? I need to make sure I understand those properly before answering.
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Zachary
5 months ago
I'm torn between that and International Review Organizations. I guess I need to double-check my notes!
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Avery
10 months ago
I'm going with option E. 'Create an external table while specifying the object storage path to LOCATION.' You know, because LOCATION is where the party's at.
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Virgie
10 months ago
Wait, so I can't just use a teleportation device to beam the data straight from the cloud into my database? Darn, there goes my plan for world domination.
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Benedict
10 months ago
Haha, option C is a classic. 'It's not possible to directly ingest data from cloud-based object storage'? Yeah, right. Clearly the person who wrote that option has never heard of external tables.
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Louvenia
8 months ago
E) Create an external table while specifying the object storage path to LOCATION
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Princess
8 months ago
D) Create an external table while specifying the object storage path to FROM
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Sueann
8 months ago
B) Create an external table while specifying the DBFS storage path to PATH
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Rashad
9 months ago
A) Create an external table while specifying the DBFS storage path to FROM
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Stephaine
10 months ago
I was going to choose option B, but then I remembered that DBFS is for Databricks File System, not object storage. Gotta pay attention to the details!
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Verdell
9 months ago
It's important to pay attention to those details when working with cloud-based storage.
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Adria
9 months ago
That's right, you need to specify the object storage path for ingestion.
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Bobbie
9 months ago
Yeah, DBFS is specific to Databricks, not object storage.
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Corazon
10 months ago
I agree with Page. Option D is the way to go. Time to show those cloud skills!
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Rosendo
9 months ago
Let's get those cloud skills in action and start ingesting data using the correct approach.
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Dalene
9 months ago
I agree, creating an external table while specifying the object storage path to FROM is the way to go.
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Leigha
10 months ago
I think option D is the best choice for ingesting data from cloud-based object storage.
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Page
11 months ago
Option D is correct. The question asks how to ingest data directly from cloud-based object storage, and the correct answer is to create an external table while specifying the object storage path to the LOCATION clause.
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Bong
9 months ago
That makes sense, it's important to specify the correct path for ingesting data from cloud-based object storage.
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Mariko
10 months ago
Yes, creating an external table with the object storage path to LOCATION is the way to go.
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Ronnie
10 months ago
I think option D is the correct approach.
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Pauline
11 months ago
I'm not sure about that. I think option D) Create an external table while specifying the object storage path to FROM might also work.
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Madonna
11 months ago
I agree with you, Latanya. Creating an external table with the LOCATION clause is the correct approach to ingest data from cloud-based object storage.
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Latanya
11 months ago
I think the answer is E) Create an external table while specifying the object storage path to LOCATION.
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