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Microsoft 070-561 Exam Syllabus Topics:

Section	Weight	Objectives
Selecting and Querying Data	22%	- Use LINQ to query data 1. LINQ to SQL 2. LINQ to DataSet - Build and configure Command objects 1. Execute methods 2. Use parameters and parameter collections 3. Set CommandType and CommandBehavior - Query data sources 1. Call stored procedures 2. Retrieve data via SELECT statements 3. Use DataReader
Updating and Persisting Data	22%	- Transactions and data integrity 1. Isolation levels 2. Local and distributed transactions 3. Ensure data consistency - Use DataAdapter and CommandBuilder 1. Insert, update, delete operations 2. Resolve concurrency conflicts
Entity Framework and Data Services	11%	- Query with Object Services 1. Manage ObjectContext 2. Query using Entity SQL - Define Entity Data Model (EDM) 1. Map schemas and storage metadata 2. Use EDM Generator
Connecting to Data Sources	12%	- Manage connection strings 1. Protect connection strings 2. Use ConnectionStringBuilder 3. Use ConfigurationManager 4. Authentication methods - Manage connection objects 1. Multiple Active Result Sets (MARS) 2. Connection pooling 3. Handle connection exceptions
Security and Performance	12%	- Secure data access 1. Prevent SQL injection 2. Least privilege principles - Optimize performance 1. Connection management 2. Query optimization
Working with DataSets and XML	21%	- XML integration 1. Read/write XML data 2. Serialize/deserialize objects 3. Transform XML with XSLT - Create and manage DataSets 1. DataTables, DataRelations, and Constraints 2. Merge and copy data 3. Typed and untyped DataSets