You have a data warehouse named DW1 that contains 20 years of data. DW1 contains a very large fact table. New data is loaded to the fact table monthly.
Many reports query DW1 for the past year of data. Users frequently report that the reports are slow.
You need to modify the fact table to minimize the amount of time it takes to run the reports. The solution must ensure that other reports can continue to be generated from DW1.
What should you do?
Correct Answer:
A
We use ALTER TABLE to partition the table.
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You plan to deploy a Microsoft SQL server that will host a data warehouse named DB1. The server will contain four SATA drives configured as a RAID 10 array.
You need to minimize write contention on the transaction log when data is being loaded to the database. Solution: You add more data files to DB1.
Does this meet the goal?
Correct Answer:
B
There is no performance gain, in terms of log throughput, from multiple log files. SQL Server does not write log records in parallel to multiple log files.
Instead you should place the log file on a separate drive. References:
https://www.red-gate.com/simple-talk/sql/database-administration/optimizing-transaction-log-throughput/ https://docs.microsoft.com/en-us/sql/relational-databases/policy-based-management/place-data-and-log-files-on-
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it As a result these questions will not appear in the review screen.
You are the administrator of a Microsoft SQL Server Master Data Services (MDS) instance. The instance contains a model named Geography and a model named customer. The Geography model contains an entity named countryRegion.
You need to ensure that the countryRegion entity members are available in the customer model.
Solution: In the Customer model, add a domain-based attribute to reference the CountryRegion entity in the Geography model.
Does the solution meet the goal?
Correct Answer:
A
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
Each night you receive a comma separated values (CSV) file that contains different types of rows. Each row type has a different structure. Each row in the CSV file is unique. The first column in every row is named Type. This column identifies the data type.
For each data type, you need to load data from the CSV file to a target table. A separate table must contain the number of rows loaded for each data type.
Solution: You create a SQL Server Integration Services (SSIS) package as shown in the exhibit. (Click the
Exhibit tab.)<>
Correct Answer:
A
The conditional split is correctly placed before the count.
You are testing a Microsoft SQL Server Integration Services (SSIS) package. The package includes the Control Flow task shown in the Control Flow exhibit (Click the Exhibit button) and the Data Flow task shown in the Data Flow exhibit. (Click the Exhibit button.)
< ><>< ><>You declare a variable named Seed as shown in the Variables exhibit. (Click the Exhibit button.) The variable is changed by the Script task during execution.
< ><>>< >
Solution:
References:
https://docs.microsoft.com/en-us/sql/integration-services/variables-window
Does this meet the goal?
Correct Answer:
A
