You are designing a data warehouse with two fact tables. The first table contains sales per month and the second table contains orders per day.
Referential integrity must be enforced declaratively.
You need to design a solution that can join a single time dimension to both fact tables. What should you do?
Correct Answer:
C
References:
http://msdn.microsoft.com/en-us/library/ms174537.aspx http://technet.microsoft.com/en-us/library/ms174832.aspx http://msdn.microsoft.com/en-us/library/ms174884.aspx
http://decipherinfosys.wordpress.com/2007/02/01/surrogate-keys-vs-natural-keys-for-primary-key/ http://www.agiledata.org/essays/keys.html http://www.databasejournal.com/features/mssql/article.php/3922066/SQL-Server-Natural-Key-
Verses-Surrogate-Key.htm http://www.jamesserra.com/archive/2012/01/surrogate-keys/
You are designing a data warehouse that contains a customer dimension.
The customer dimension contains the original customer attributes as well as the most recent set of updated attributes. When a customer is updated, the original customer attributes must be preserved.
The customer dimension design must:
Support a Type 3 Slowly Changing Dimension (SCD) process Minimize the total storage consumed
You need to design a solution that meets these requirements. What should you do?
Correct Answer:
D
You have a SQL server integration Services (SSIS) package named package1. You discover that the Data Flow task for Package1 runs slower than expected. You need to reduce the amount of time required to run the Data Flow task. Which two actions should you perform? (Select Two)
Correct Answer:
DE
You are designing a data warehouse with two fact tables. The first table contains sales per month and the second table contains orders per day.
Referential integrity must be enforced declaratively.
You need to design a solution that can join a single time dimension to both fact tables. What should you do?
Correct Answer:
C
You develop a SQL Server Integration Services (SSIS) project by using the Package Deployment Model. A package in the project extracts data from a Windows Azure SQL Database database. The package is deployed to SQL Server.
The package is not producing the desired results.
You need to generate the .mdmp and .tmp debug files in order to troubleshoot the issues. What should you do?
Correct Answer:
C