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Welcome to the Performance Tuning and Optimization MCQs Page

Dive deep into the fascinating world of Performance Tuning and Optimization with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Performance Tuning and Optimization, a crucial aspect of SQL Server. In this section, you will encounter a diverse range of MCQs that cover various aspects of Performance Tuning and Optimization, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within SQL Server.

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Check out the MCQs below to embark on an enriching journey through Performance Tuning and Optimization. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of SQL Server.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Performance Tuning and Optimization. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Performance Tuning and Optimization MCQs | Page 4 of 12

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Q31.
The use of parameters, including parameter markers in _______ applications, can increase the reuse of execution plans.

a.

OLE DB

b.

ADO

c.

ODBC

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q32.
Point out the correct statement.

a.

JDBC use parameter markers

b.

Parameter markers are question marks (?) that replace a constant in an SQL statement

c.

When forced parameterization is tried but fails, simple parameterization is still subsequently tried

d.

All of the mentioned

Discuss
Answer: (b).Parameter markers are question marks (?) that replace a constant in an SQL statement
Q33.
Use to bind an integer variable to the first parameter marker in an SQL statement.

a.

SQLParameter

b.

SQLBind

c.

SQLBindParameter

d.

All of the mentioned

Discuss
Answer: (c).SQLBindParameter
Q34.
Which of the following query cannot be parameterized according to the rules of forced parameterization?

a.

SELECT * FROM Person.Address
WHERE AddressID = 1 + 2;

b.

SELECT * FROM Person.Address
WHERE AddressID = 1;

c.

SELECT * FROM Person.Address
WHERE AddressID = 2;

d.

All of the mentioned

Discuss
Answer: (a).SELECT * FROM Person.Address
WHERE AddressID = 1 + 2;
Q35.
Point out the wrong statement.

a.

MisGuided Plan Executions/sec represents the number of plan executions per second in which the query plan has been generated by using a plan guide

b.

Execution plans remain in the procedure cache as long as there is enough memory to store them

c.

When a user process inserts an execution plan into the cache, the user process sets the current cost equal to the original query compile cost

d.

All of the mentioned

Discuss
Answer: (a).MisGuided Plan Executions/sec represents the number of plan executions per second in which the query plan has been generated by using a plan guide
Q36.
Which of the following SQL Server SQL Statistics counter represents number of auto-parameterization attempts per second?

a.

Batch Requests/sec

b.

Failed Auto-Params/sec

c.

Forced parameterizations/sec

d.

Auto-Param Attempts/sec

Discuss
Answer: (d).Auto-Param Attempts/sec
Q37.
The maximum size for all caches is a function of the ________ size.

a.

RAM

b.

Buffer pool

c.

Hard disk

d.

None of the mentioned

Discuss
Answer: (b).Buffer pool
Q38.
The conditions that invalidate a plan include which of the following?

a.

An explicit call to sp_compile

b.

Executing a stored procedure using the WITH COMPILE option

c.

Changes made to a table or view referenced by the query

d.

All of the mentioned

Discuss
Answer: (c).Changes made to a table or view referenced by the query
Q39.
What is the syntax for DBCC FREEPROCCACHE with all the optional parameters in T-SQL?

a.

DBCC FREEPROCCACHE [ ( { plan_handle | sql_handle | pool_name } ) ]

b.

DBCC FREEPROCCACHE [ ( { plan_handle | sql_handle | pool_name } ) ] [ WITH NO_INFOMSGS ]

c.

DBCC FREEPROCCACHE [ ( { sql_handle | pool_name } ) ] [ WITH NO_INFOMSGS ]

d.

None of the mentioned

Discuss
Answer: (b).DBCC FREEPROCCACHE [ ( { plan_handle | sql_handle | pool_name } ) ] [ WITH NO_INFOMSGS ]
Q40.
_________ uniquely identifies a query plan for a batch that has executed and whose plan resides in the plan cache.

a.

pool_name

b.

plan_handle

c.

sql_handle

d.

none of the mentioned

Discuss
Answer: (b).plan_handle
Page 4 of 12

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