Database Performance Tuning MCQs With Answers

Computer MCQs 360April 4, 2024

0 19 1 minute read

Welcome to the Database Performance Tuning MCQs with Answers. In this post, we have shared Database Performance Tuning Online Test for different competitive exams. Find practice Database Performance Tuning Practice Questions with answers in Computer Tests exams here. Each question offers a chance to enhance your knowledge regarding Database Performance Tuning.

Database Performance Tuning Online Quiz

By presenting 3 options to choose from, Database Performance Tuning Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Database Performance Tuning Questions and Answers and click over the correct answer.

Test Name: Database Performance Tuning MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Database Performance Tuning

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1 / 40

What is the primary role of database index fragmentation in performance tuning?

Reduce query performance

Optimize query execution

Defragment database tables

2 / 40

Which SQL command is used to analyze query execution plans?

EXPLAIN

ANALYZE

SHOW PLAN

3 / 40

What is the primary disadvantage of using database replication for performance tuning?

Increased complexity

Faster data recovery

Improved data security

4 / 40

Which database performance tuning technique improves data retrieval speed by precomputing results?

Triggers

Materialized views

Stored procedures

5 / 40

Which database performance tuning technique reduces data redundancy?

Denormalization

Indexing

Normalization

6 / 40

What does the term "table partitioning" refer to in database performance tuning?

Divide large tables into smaller, manageable parts

Encrypt database access

Archive old data

7 / 40

What is the primary disadvantage of using too many indexes on a table?

Reduced data security

Increased storage space

Slower data retrieval

8 / 40

What is the primary role of database caching in performance tuning?

Store frequently accessed data in memory

Encrypt database access

Archive old database records

9 / 40

What does the term "database sharding" refer to in performance tuning?

Data encryption

Horizontal partitioning of data across multiple servers

Vertical partitioning

10 / 40

Which SQL operation typically requires indexing for performance optimization?

DELETE

DROP

SELECT

11 / 40

Which statement is true about clustered indexes in SQL Server?

Define the physical order of data rows

Support data manipulation

Improve data security

12 / 40

Which SQL feature is commonly used for limiting the number of rows returned by a query?

TOP

LIMIT

ROWS

13 / 40

What is the primary purpose of indexing in a database?

Speed up data retrieval

Secure data transmission

Manage database transactions

14 / 40

Which database performance tuning technique reduces the number of database connections?

Connection pooling

Data encryption

Indexing

15 / 40

Which statement is true about SQL indexing guidelines?

Use indexes for INSERT queries

Index all columns

Avoid indexing on columns with low selectivity

16 / 40

What does the term "query optimization" refer to in database performance tuning?

Increase database size

Backup database

Improve SQL query execution efficiency

17 / 40

Which statement is true about database query caching in performance tuning?

Cache query results to reduce execution time

Encrypt database access

Optimize network bandwidth

18 / 40

Which database object is commonly used to improve query performance by storing frequently accessed data?

Materialized view

Procedure

Trigger

19 / 40

Which factor is NOT typically considered in database index selection?

Data cardinality

Database vendor

Query execution frequency

20 / 40

What is the primary role of database statistics in performance tuning?

Optimize network traffic

Help the query optimizer make better decisions

Encrypt database access

21 / 40

Which statement is true about SQL query optimization techniques?

Avoid using indexes

Use WHERE clause to filter rows

Increase ORDER BY clause

22 / 40

What is the role of database locking in performance tuning?

Optimize query performance

Control access to shared resources

Backup and recovery

23 / 40

Which factor does NOT typically influence database performance?

Database size

Network bandwidth

Operating system version

24 / 40

Which type of index is most suitable for columns with low cardinality?

Bitmap index

Hash index

Clustered index

25 / 40

Which indexing technique stores keys in a sorted order?

B-tree

Heap

Hash

26 / 40

What does the term "hotspot" refer to in database performance tuning?

Frequently accessed data

Inefficient queries

Unused database objects

27 / 40

What is a "covering index" in database performance optimization?

Index that includes all columns required by a query

Index that excludes columns

Index that includes a single column

28 / 40

What is the role of database partitioning in performance tuning?

Increase database size

Improve manageability and query performance

Backup and recovery

29 / 40

What does the term "denormalization" refer to in database performance tuning?

Encrypting database

Reducing database size

Adding redundant data to improve query performance

30 / 40

Which SQL operation is NOT typically optimized using indexing?

SELECT

INSERT

UPDATE

31 / 40

Which database performance tuning technique is used to reduce response time for complex queries?

Indexing

Query optimization

Data encryption

32 / 40

Which database performance tuning technique ensures optimal disk space allocation?

Indexing

Defragmentation

Query optimization

33 / 40

What is the primary benefit of using stored procedures for database performance tuning?

Improve data security

Increase database size

Reduce network traffic

34 / 40

What is the primary advantage of using parameterized queries in SQL?

Improve query performance

Increase data redundancy

Prevent SQL injection attacks

35 / 40

What is the primary role of database query rewriting in performance tuning?

Reduce database size

Encrypt database access

Improve query execution efficiency

36 / 40

Which statement is true about database connection pooling in performance tuning?

Increase network bandwidth

Improve data security

Reduce the overhead of opening and closing database connections

37 / 40

What is database performance tuning?

Optimizing database operations for better efficiency

Increasing database size

Securing database access

38 / 40

What is the role of database buffering in performance tuning?

Cache frequently accessed data

Manage database backups

Audit database access

39 / 40

What is the primary benefit of using database caching for performance tuning?

Optimize network traffic

Increase database size

Reduce disk I/O operations

40 / 40

What is the purpose of "database profiling" in performance tuning?

Encrypt database access

Identify performance bottlenecks

Backup and recovery

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Computer MCQs 360April 4, 2024

0 19 1 minute read