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SSIS Interview Question Answer

1.  What is breakpoints in ssis? 
Breakpoint is responsible to stop execution of package when specific event occur in control flow to investigate and troubleshoot  the state of the SSIS package. know more 
2.  What is Data viewer in ssis? 
Data Viewers are containers that can contain a single SSIS buffer’s work.  As the data passes through the Data Path you are able to view what is in each buffer.  As each buffer passes into the Data Viewer, the processing of the SSIS package on that Data Path is paused. know more 
3.  What is Control flow in ssis? 
Control flow is the collection of data flow task which is provide structure , functionality in package and connect the executables , container, task into a ordered control flow. SSIS provide three types of control flow  containers ,task, precedence containers. know more 
4.  Variables in ssis? 
According to Microsoft, Variables store values that a SQL Server Integration Services package and its containers, tasks, and event handlers can use at run time. The scripts in the Script task and the Script component can also use variables. The precedence constraints that sequence tasks and containers into a workflow can use variables when their constraint definitions include expressions. know more 
5.  Dataflow task vs dataflow 
Data flow task is the collection of data flow engine or you may say Data Flow task encapsulate data flow engine, Data Flow engine move the data from source to destination, it's give the facility to transforms and to modify data as it is moved. know more

6.       What is Sort transformation in ssis?

7.       What is Lookups in ssis?

8.       Difference and similarity between merge and merge join transformation

9.       What is Conditional split in ssis?

10.   What is container in ssis?

11.   For loop container vs. For each loop container

12.   Error handling in ssis

13.   Control flow VS. Data flow.

14.   Name all types in SSIS

15.   What is the difference between the following SQL Server connections:   OLEDB, ODBC and SQLClient

16.   What is the difference between Lookup and Merge Join?

17.   How can you deploy SSIS Package (or Project).

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