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Databricks Certified Professional Data Engineer 자격증 시험은 60개의 객관식 문제로 구성되어 있으며, 90분 내에 답변해야합니다. 이 문제는 후보자의 Databricks 및 해당 기능에 대한 지식뿐만 아니라 이러한 지식을 실제 상황에 적용할 수 있는 능력을 시험합니다. 시험에 합격하려면 후보자는 최소 70%의 합격 점수를 얻어야 합니다. 이 자격증은 2년간 유효하며, 시험을 다시 보거나 지속 교육 활동 집필을 완료하여 갱신할 수 있습니다. Databricks Certified Professional Data Engineer 자격증을 취득하면 데이터 전문가는 Databricks를 사용하여 데이터 엔지니어링 솔루션을 구축하고 배포하는 전문 기술을 증명할 수 있으며, 이는 오늘날 데이터 중심 비즈니스 환경에서 가치 있는 자산이 될 수 있습니다.
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최신 Databricks Certification Databricks-Certified-Professional-Data-Engineer 무료샘플문제 (Q94-Q99):
질문 # 94
What are the different ways you can schedule a job in Databricks workspace?
- A. Continuous, Incremental
- B. Once, Continuous
- C. Cron, File notification from Cloud object storage
- D. On-Demand runs, File notification from Cloud object storage
- E. Cron, On Demand runs
정답：E
설명：
Explanation
The answer is, Cron, On-Demand runs
Supports running job immediately or using can be scheduled using CRON syntax
질문 # 95
Data engineering team has provided 10 queries and asked Data Analyst team to build a dashboard and refresh the data every day at 8 AM, identify the best approach to set up data refresh for this dashaboard?
- A. The entire dashboard with 10 queries can be refreshed at once, single schedule needs to be set up to refresh at 8 AM.
- B. Each query requires a separate task and setup 10 tasks under a single job to run at 8 AM to refresh the dashboard
- C. A dashboard can only refresh one query at a time, 10 schedules to set up the refresh.
- D. Setup JOB with linear dependency to all load all 10 queries into a table so the dashboard can be refreshed at once.
- E. Use Incremental refresh to run at 8 AM every day.
정답：A
설명：
Explanation
The answer is,
The entire dashboard with 10 queries can be refreshed at once, single schedule needs to be set up to refresh at
8 AM.
Automatically refresh a dashboard
A dashboard’s owner and users with the Can Edit permission can configure a dashboard to auto-matically refresh on a schedule. To automatically refresh a dashboard:
* Click the Schedule button at the top right of the dashboard. The scheduling dialog appears.
* Graphical user interface, text, application, email, Teams Description automatically generated
* 2.In the Refresh every drop-down, select a period.
* 3.In the SQL Warehouse drop-down, optionally select a SQL warehouse to use for all the queries.
If you don’t select a warehouse, the queries execute on the last used SQL ware-house.
* 4.Next to Subscribers, optionally enter a list of email addresses to notify when the dashboard is automatically updated.
* Each email address you enter must be associated with a Azure Databricks account or con-figured as an alert destination.
* 5.Click Save. The Schedule button label changes to Scheduled.
질문 # 96
Two junior data engineers are authoring separate parts of a single data pipeline notebook. They are working on
separate Git branches so they can pair program on the same notebook simultaneously. A senior data engineer
experienced in Databricks suggests there is a better alternative for this type of collaboration.
Which of the following supports the senior data engineer’s claim?
- A. Databricks Notebooks support automatic change-tracking and versioning
- B. Databricks Notebooks support commenting and notification comments
- C. Databricks Notebooks support the creation of interactive data visualizations
- D. Databricks Notebooks support real-time co-authoring on a single notebook
- E. Databricks Notebooks support the use of multiple languages in the same notebook
정답：D
질문 # 97
What is the purpose of a silver layer in Multi hop architecture?
- A. Refined views with aggregated data
- B. Efficient storage and querying of full and unprocessed history of data
- C. A schema is enforced, with data quality checks.
- D. Optimized query performance for business-critical data
- E. Replaces a traditional data lake
정답：C
설명：
Explanation
The answer is, A schema is enforced, with data quality checks.
Medallion Architecture – Databricks
Silver Layer:
1.Reduces data storage complexity, latency, and redundency
2.Optimizes ETL throughput and analytic query performance
3.Preserves grain of original data (without aggregation)
4.Eliminates duplicate records
5.production schema enforced
6.Data quality checks, quarantine corrupt data
Exam focus: Please review the below image and understand the role of each layer(bronze, silver, gold) in medallion architecture, you will see varying questions targeting each layer and its purpose.
Sorry I had to add the watermark some people in Udemy are copying my content.
질문 # 98
You are working on a marketing team request to identify customers with the same information between two tables CUSTOMERS_2021 and CUSTOMERS_2020 each table contains 25 columns with the same schema, You are looking to identify rows that match between two tables across all columns, which of the following can be used to perform in SQL
- A. 1.SELECT * FROM CUSTOMERS_2021
2. UNION
3.SELECT * FROM CUSTOMERS_2020 - B. 1.SELECT * FROM CUSTOMERS_2021
2. INTERSECT
3.SELECT * FROM CUSTOMERS_2020 - C. 1.SELECT * FROM CUSTOMERS_2021
2.EXCEPT
3.SELECT * FROM CUSTOMERS_2020 - D. 1.SELECT * FROM CUSTOMERS_2021
2. UNION ALL
3.SELECT * FROM CUSTOMERS_2020 - E. 1.SELECT * FROM CUSTOMERS_2021 C1
2.INNER JOIN CUSTOMERS_2020 C2
3.ON C1.CUSTOMER_ID = C2.CUSTOMER_ID
정답：B
설명：
Explanation
Answer is,
1.SELECT * FROM CUSTOMERS_2021
2. INTERSECT
3.SELECT * FROM CUSTOMERS_2020
To compare all the rows between both the tables across all the columns using intersect will help us achieve that, an inner join is only going to check if the same column value exists across both the tables on a single column.
INTERSECT [ALL | DISTINCT]
*Returns the set of rows which are in both subqueries.
If ALL is specified a row that appears multiple times in the subquery1 as well as in subquery will be returned multiple times.
If DISTINCT is specified the result does not contain duplicate rows. This is the default.
질문 # 99
……
요즘같이 시간인즉 금이라는 시대에 시간도 절약하고 빠른 시일 내에 학습할 수 있는 Itexamdump의 덤프를 추천합니다. 귀중한 시간절약은 물론이고 한번에Databricks Databricks-Certified-Professional-Data-Engineer인증시험을 패스함으로 여러분의 발전공간을 넓혀줍니다.
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