What should you do?

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You have a database named DB1. The database does not use a memory-optimized filegroup. The database contains a table named Table1. The table must support the following workloads: You need to add the most efficient index to support the new OLTP workload, while not deteriorating the existing Reporting query performance.

What should you do?
A . Create a clustered index on the table.
B . Create a nonclustered index on the table.
C . Create a nonclustered filtered index on the table.
D . Create a clustered columnstore index on the table.
E . Create a nonclustered columnstore index on the table.
F . Create a hash index on the table.

View Answer

Answer: C

Explanation:

A filtered index is an optimized nonclustered index, especially suited to cover queries that select from a well-defined subset of data. It uses a filter predicate to index a portion of rows in the table. A well-designed filtered index can improve query performance, reduce index maintenance costs, and reduce index storage costs compared with full-table indexes.

References: https://technet.microsoft.com/en-us/library/cc280372(v=sql.105).aspx