070-776 無料問題集「Microsoft Engineering Data with Microsoft Cloud Services」
You have a Microsoft Azure SQL data warehouse that contains information about community events.
An Azure Data Factory job writes an updated CSV file in Azure Blob storage to Community/{date}/events.csv daily.
You plan to consume a Twitter feed by using Azure Stream Analytics and to correlate the feed to the community events.
You plan to use Stream Analytics to retrieve the latest community events data and to correlate the data to the Twitter feed data.
You need to ensure that when updates to the community events data is written to the CSV files, the Stream Analytics job can access the latest community events data.
What should you configure?
An Azure Data Factory job writes an updated CSV file in Azure Blob storage to Community/{date}/events.csv daily.
You plan to consume a Twitter feed by using Azure Stream Analytics and to correlate the feed to the community events.
You plan to use Stream Analytics to retrieve the latest community events data and to correlate the data to the Twitter feed data.
You need to ensure that when updates to the community events data is written to the CSV files, the Stream Analytics job can access the latest community events data.
What should you configure?
正解:A
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You plan to use Microsoft Azure Data factory to copy data daily from an Azure SQL data warehouse to an Azure Data Lake Store.
You need to define a linked service for the Data Lake Store. The solution must prevent the access token from expiring.
Which type of authentication should you use?
You need to define a linked service for the Data Lake Store. The solution must prevent the access token from expiring.
Which type of authentication should you use?
正解:B
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解説: (JPNTest メンバーにのみ表示されます)
You need to load data from Microsoft Azure Data Lake Store to Azure SQL Data Warehouse by using Transact-SQL.
In which sequence should you perform the actions? To answer, move all actions from the list of actions to the answer area and arrange them in the correct order.
NOTE: More than one order of answer choices is correct. You will receive credit for any of the correct orders you select.

In which sequence should you perform the actions? To answer, move all actions from the list of actions to the answer area and arrange them in the correct order.
NOTE: More than one order of answer choices is correct. You will receive credit for any of the correct orders you select.

正解:

Explanation

Note: This question is part of a series of questions that present the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.
Start of repeated scenario
You are migrating an existing on-premises data warehouse named LocalDW to Microsoft Azure. You will use an Azure SQL data warehouse named AzureDW for data storage and an Azure Data Factory named AzureDF for extract, transformation, and load (ETL) functions.
For each table in LocalDW, you create a table in AzureDW.
On the on-premises network, you have a Data Management Gateway.
Some source data is stored in Azure Blob storage. Some source data is stored on an on-premises Microsoft SQL Server instance. The instance has a table named Table1.
After data is processed by using AzureDF, the data must be archived and accessible forever. The archived data must meet a Service Level Agreement (SLA) for availability of 99 percent. If an Azure region fails, the archived data must be available for reading always. The storage solution for the archived data must minimize costs.
End of repeated scenario.
Which three actions should you perform in sequence to migrate the on-premises data warehouse to Azure SQL Data Warehouse? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

Start of repeated scenario
You are migrating an existing on-premises data warehouse named LocalDW to Microsoft Azure. You will use an Azure SQL data warehouse named AzureDW for data storage and an Azure Data Factory named AzureDF for extract, transformation, and load (ETL) functions.
For each table in LocalDW, you create a table in AzureDW.
On the on-premises network, you have a Data Management Gateway.
Some source data is stored in Azure Blob storage. Some source data is stored on an on-premises Microsoft SQL Server instance. The instance has a table named Table1.
After data is processed by using AzureDF, the data must be archived and accessible forever. The archived data must meet a Service Level Agreement (SLA) for availability of 99 percent. If an Azure region fails, the archived data must be available for reading always. The storage solution for the archived data must minimize costs.
End of repeated scenario.
Which three actions should you perform in sequence to migrate the on-premises data warehouse to Azure SQL Data Warehouse? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

正解:

Explanation

References:
https://docs.microsoft.com/en-us/azure/sql-data-warehouse/sql-data-warehouse-load-from-sql-server-with-polyba
You plan to use Microsoft Azure Event Hubs to ingest data. You plan to use Azure Stream Analytics to analyze the data in real time and to send the output directly to Azure Data Lake Store.
You discover duplicate records in the output data.
What is a possible cause of the duplicate records?
You discover duplicate records in the output data.
What is a possible cause of the duplicate records?
正解:A
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解説: (JPNTest メンバーにのみ表示されます)
You have a Microsoft Azure SQL data warehouse that has a fact table named FactOrder. FactOrder contains three columns named CustomerId, OrderId, and OrderDateKey. FactOrder is hash distributed on CustomerId.
OrderId is the unique identifier for FactOrder. FactOrder contains 3 million rows.
Orders are distributed evenly among different customers from a table named dimCustomers that contains 2 million rows.
You often run queries that join FactOrder and dimCustomers by selecting and grouping by the OrderDateKey column.
You add 7 million rows to FactOrder. Most of the new records have a more recent OrderDateKey value than the previous records.
You need to reduce the execution time of queries that group on OrderDateKey and that join dimCustomers and FactOrder.
What should you do?
OrderId is the unique identifier for FactOrder. FactOrder contains 3 million rows.
Orders are distributed evenly among different customers from a table named dimCustomers that contains 2 million rows.
You often run queries that join FactOrder and dimCustomers by selecting and grouping by the OrderDateKey column.
You add 7 million rows to FactOrder. Most of the new records have a more recent OrderDateKey value than the previous records.
You need to reduce the execution time of queries that group on OrderDateKey and that join dimCustomers and FactOrder.
What should you do?
正解:D
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解説: (JPNTest メンバーにのみ表示されます)
You have a Microsoft Azure Stream Analytics solution that captures website visits and user interactions on the website.
You have the sample input data described in the following table.

You have the sample output described in the following table.

How should you complete the script? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.

You have the sample input data described in the following table.

You have the sample output described in the following table.

How should you complete the script? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.

正解:

Explanation

References:
https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-stream-analytics-query-patterns
You manage an on-premises data warehouse that uses Microsoft SQL Server. The data warehouse contains
100 TB of data. The data is partitioned by month. One TB of data is added to the data warehouse each month.
You create a Microsoft Azure SQL data warehouse and copy the on-premises data to the data warehouse.
You need to implement a process to replicate the on-premises data warehouse to the Azure SQL data warehouse. The solution must support daily incremental updates and must provide error handling.
What should you use?
100 TB of data. The data is partitioned by month. One TB of data is added to the data warehouse each month.
You create a Microsoft Azure SQL data warehouse and copy the on-premises data to the data warehouse.
You need to implement a process to replicate the on-premises data warehouse to the Azure SQL data warehouse. The solution must support daily incremental updates and must provide error handling.
What should you use?
正解:C
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You plan to capture the output from a group of 500 IoT devices that produce approximately 10 GB of data per hour by using Microsoft Azure Stream Analytics. The data will be retained for one year.
Once the data is processed, it will be stored in Azure, and then analyzed by using an Azure HDInsight cluster.
You need to select where to store the output data from Stream Analytics. The solution must minimize costs.
What should you select?
Once the data is processed, it will be stored in Azure, and then analyzed by using an Azure HDInsight cluster.
You need to select where to store the output data from Stream Analytics. The solution must minimize costs.
What should you select?
正解:D
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