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Performance Tuning and Optimization

1.       What are the different ways and methods of performance tuning and optimization ?
a.       Indexing
b.      Achieving
c.       Load Balancing
d.      Query Refactoring
e.      System/Resource Level Optimization (CPU,Memory,IO Configuration)
2.       What is Index ?
3.       What is Heap ?
4.       What is B-Tree/Balance Tree ?
5.       What are the kinds of Indexes ? – Clustered and Non-Clustered
6.       What are differences between Clustered and Non-Clustered Indexes ?
7.       What is execution plan / query execution plan ?
8.       What is Estimated and Actual Execution Plan ?
9.       How do you plan about Indexes in your database ?
10.   What is difference between Table scan and Index Scan ?
11.   What is Composite Index ?
12.   What is Filtered Index ?
13.   What is Fill Factor ?
14.   What is Page Split Problem in Sql Server ?
15.   What is Fragmentation , Explain ?
16.   What is difference between Index Reorganize or Rebuild ?
17.   What is Statistics or Index Statistics ?
18.   How to check and Update in Statistics ?
19.   What is Page and Extent ?
20.   What is difference between Index Seek and Index Scan ?
21.   How to enable and disable indexes in database ?
22.   Can we create clustered index without PK ?
23.   Can we create  Clustered Index without Primary Key ?
24.   Can we create Primary Key without Clustered Index ?
25.   How to recompile Stored Procedure at Run Time ?
26.   How to avoid dead locks and blocking ?
27.   What is DTA (data tuning advisory) ? How to use it for Performance Tuning ?
28.   Why we can create only one clustered index per table ?
29.   What are the pros and cons of NOLOCK ?
30.   What is Query Optimizer ?
31.   What is Data Achieving ?
32.   What is Data Purging ?
33.   What is Data and Database Partition ?
34.   What are the types of Partition ? What is Horizontal and Vertical Partition ?
35.   What is Table Partitioning ? How to perform partitioning process. Explain .
36.   What is Index Partitioning ? How to perform partitioning process. Explain .
37.   What is Indexed View or Materialized View ? Benefits of Indexed View ?
38.   How to Created Indexed View ?
39.   How do you decide about Index Maintenance , which one to rebuild and reorganize ?
40.   How to check index fragmentation ?
41.   How do we rebuild large indexes ?
42.   Where does logs get stored in SQL Server ?
43.   What is Full Text Search ? how to configure ?
44.   What is Two Phase Commit ?

45.   Does Table or Column Alias effect performance ?
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