Implementing a Data Warehouse with Microsoft SQL Server 2012
Published: 11 June 2012
Languages: English, Chinese (Simplified), French, German, Japanese, Portuguese (Brazil)
Audiences: IT professionals
Technology: Microsoft SQL Server 2012
Credit towards certification: MCP, MCSA, MCSE
This exam measures your ability to accomplish the technical tasks listed below. The percentages indicate the relative weight of each major topic area in the exam. The higher the percentage, the more questions you are likely to see on that content area in the exam.
Please note that the questions may test on, but will not be limited to, the topics described in the bulleted text.
Design and implement a data warehouse (11%)
Design and implement dimensions
Design shared/conformed dimensions; determine if you need support for slowly changing dimensions; determine attributes; design hierarchies; determine whether you need star or snowflake schema; determine the granularity of relationship with fact tables; determine the need for auditing or lineage; determine keys (business transactional or your own data warehouse/surrogate keys); implement dimensions; implement data lineage of a dimension table
Design and implement fact tables
Design a data warehouse that supports many to many relationships; appropriately index a fact table; using columnstore indexes; partitioning; additive measures; semi-additive measures; non-additive measures; implement fact tables; determining the loading method for the fact tables; implement data lineage of a fact table; design summary aggregation tables
Introduction to dimensions (Analysis Services - multidimensional data)
Extract and transform data (23%)
Define connection managers
Plan the configuration of connection managers; package level or project level connection manager; define a connection string; parameterisation of connection strings
Design data flow
Define data sources and destinations; distinguish blocking and non-blocking transformations; use different methods to pull out changed data from data sources; determine appropriate data flow components; determine the need for supporting Slowly Changing Dimensions (SCD); determine whether to use SQL Joins or SSIS lookup or merge join transformations; batch processing versus row by row processing; determine the appropriate transform to use for a specific task; determine the need and method for identity mapping and deduplicating; fuzzy lookup, fuzzy grouping and Data Quality Services (DQS) transformation; determine the need for text mining; determine the need for custom data sources, destinations, and transforms; determine what to do with erroneous rows; determine auditing needs; determine sampling needs for data mining (advanced); trusted/authoritative data sources, including warehouse metadata
Implement data flow
Debug data flow; use the appropriate data flow components; SQL / SSIS data transformation; create SSIS packages that support slowly changing dimensions; use the lookup task in SSIS; map identities using SSIS fuzzy lookup (advanced); specify a data source and destination; use data flows; different categories of transformations; read, transform and load data; understand which transforms to use to accomplish a specific business task; data correction transformation; performance tune an SSIS dataflow; optimise Integration Services packages for speed of execution; maintain data integrity, including good data flow
Manage SSIS package execution
Schedule package execution by using SQL Server Agent; execute packages by using DTEXEC; execute packages by using SQL Server Management Studio; implement package execution; plan and design package execution strategy; use PowerShell to execute script; monitor the execution using Management Studio; use DTEXECUI; ETL restartability
Implement script tasks in SSIS
Determine whether it is appropriate to use a script task; extending the capability of a control flow; perform a custom action as needed (not on every row) during a control flow
Integration Services (SSIS) connections
Slowly changing dimension transformation
Load data (27%)
Design control flow
Determine control flow; determine containers and tasks needed; determine precedence constraints; design an SSIS package strategy with rollback, staging and transaction control; decide between one package or multiple packages; determine event handlers; determine variables; determine parameters on package and project level; determine connection managers and whether they are package or project level; determine the need for custom tasks; determine how much information you need to log from a package; determine the need for checkpoints; determine security needs
Implement package logic by using SSIS variables and parameters
User variables; variable scope, data type; implement parameterisation of properties using variables; using variables in precedence constraints; referring to SSIS system variables; design dynamic SSIS packages; package configurations (file or SQL tables); expressions; package and project parameters; project level connection managers; variables; implement dynamic package behaviour; configure packages in SSIS for different environments, package configurations (xmlconfiguration file, SQLServer table, registry entry; parent package variables, environment variable); parameters (package and project level); project connection managers; property expressions (use expressions for connection managers)
Implement control flow
Checkpoints; debug control flow; implement the appropriate control flow task to solve a problem; data profiling; use sequence containers and loop containers; manage transactions in SSIS packages; managing parallelism; using precedence constraint to control task execution sequence; creating package templates; using the execute package task
Implement data load options
Implement a full and incremental data load strategy; plan for an incremental update of the relational Data Mart
Implement script components in SSIS
Create an SSIS package that handles SCD Type 2 changes without using the SCD component; work with script component in SSIS; deciding when it is appropriate to use a script component versus a built in; source, transformation, destination component; use cases: web service source and destination, getting the error message
Integration Services transactions
Developing a custom task
Integration Services (SSIS) parameters
Configure and deploy SSIS solutions (24%)
Troubleshoot data integration issues
Performance issues; connectivity issues; execution of a task or transformation failed; logic issues; demonstrate awareness of the new SSIS logging infrastructure; troubleshoot a failed package execution to determine the root cause of failure; troubleshoot SSIS package failure from an invalid datatype; implement break points; data viewers; profile data with different tools; batch cleanup
Install and maintain SSIS components
Software installation (IS, management tools); development box and server; install specifics for remote package execution; planning for installation (32- versus 64-bit); upgrade; provisioning the accounts; creating the catalogue
Implement auditing, logging and event handling
Audit package execution by using system variables; propagate events; use log providers; log an SSIS execution; create alerting and notification mechanisms; use Event Handlers in SSIS to track ETL events and errors; implement custom logging
Deploy SSIS solutions
Create and configure an SSIS catalogue; deploy SSIS packages by using the deployment utility; deploy SSIS packages to SQL or file system locations; validate deployed packages; deploy packages on multiple servers; how to install custom components and tasks; deploy SSIS packages by using DTUTIL
Configure SSIS security settings
SSIS catalogue database roles; package protection levels; secure Integration Services packages that are deployed at the file system; secure Integration Services parameters, configuration
Troubleshooting tools for package development
Load-balancing packages on remote servers by using SQL Server Agent
Integration Services (SSIS) logging
Build data quality solutions (15%)
Install and maintain data quality services
Installation prerequisites; .msi package; adding users to the DQ roles; identity analysis, including data governance
Implement master data management solutions
Install Master Data Services (MDS); implement MDS; create models, entities, hierarchies, collections, attributes; define security roles; import/export; subscriptions
Create a data quality project to clean data
Profile Online Transaction Processing (OLTP) and other source systems; data quality knowledge base management; create data quality project; use data quality client; improve data quality; identity mapping and deduplicating; handle history and data quality; manage data quality/cleansing
Install Data Quality Services
Install Master Data Services
Master Data Services features and tasks
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