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

Which SQL operation is NOT typically optimized using indexing?

INSERT

SELECT

UPDATE

2 / 40

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

Increased storage space

Slower data retrieval

Reduced data security

3 / 40

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

Backup and recovery

Encrypt database access

Identify performance bottlenecks

4 / 40

What is the role of database partitioning in performance tuning?

Increase database size

Improve manageability and query performance

Backup and recovery

5 / 40

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

Connection pooling

Indexing

Data encryption

6 / 40

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

Improve data security

Reduce network traffic

Increase database size

7 / 40

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

Encrypt database access

Optimize network traffic

Help the query optimizer make better decisions

8 / 40

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

Encrypt database access

Reduce database size

Improve query execution efficiency

9 / 40

Which indexing technique stores keys in a sorted order?

Heap

B-tree

Hash

10 / 40

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

Index that includes all columns required by a query

Index that includes a single column

Index that excludes columns

11 / 40

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

Improve query performance

Prevent SQL injection attacks

Increase data redundancy

12 / 40

Which database performance tuning technique reduces data redundancy?

Indexing

Denormalization

Normalization

13 / 40

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

Archive old data

Divide large tables into smaller, manageable parts

Encrypt database access

14 / 40

What is the role of database buffering in performance tuning?

Audit database access

Manage database backups

Cache frequently accessed data

15 / 40

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

Unused database objects

Inefficient queries

Frequently accessed data

16 / 40

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

Data encryption

Vertical partitioning

Horizontal partitioning of data across multiple servers

17 / 40

Which statement is true about SQL indexing guidelines?

Avoid indexing on columns with low selectivity

Index all columns

Use indexes for INSERT queries

18 / 40

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

LIMIT

TOP

ROWS

19 / 40

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

Reduce query performance

Defragment database tables

Optimize query execution

20 / 40

Which factor does NOT typically influence database performance?

Database size

Network bandwidth

Operating system version

21 / 40

What is database performance tuning?

Securing database access

Optimizing database operations for better efficiency

Increasing database size

22 / 40

What is the primary purpose of indexing in a database?

Manage database transactions

Speed up data retrieval

Secure data transmission

23 / 40

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

Materialized view

Trigger

Procedure

24 / 40

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

Encrypt database access

Store frequently accessed data in memory

Archive old database records

25 / 40

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

Materialized views

Triggers

Stored procedures

26 / 40

Which SQL operation typically requires indexing for performance optimization?

DROP

SELECT

DELETE

27 / 40

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

Query optimization

Indexing

Data encryption

28 / 40

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

Increase database size

Reduce disk I/O operations

Optimize network traffic

29 / 40

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

Cache query results to reduce execution time

Optimize network bandwidth

Encrypt database access

30 / 40

What is the role of database locking in performance tuning?

Backup and recovery

Control access to shared resources

Optimize query performance

31 / 40

Which SQL command is used to analyze query execution plans?

SHOW PLAN

EXPLAIN

ANALYZE

32 / 40

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

Reduce the overhead of opening and closing database connections

Improve data security

Increase network bandwidth

33 / 40

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

Reducing database size

Adding redundant data to improve query performance

Encrypting database

34 / 40

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

Improve SQL query execution efficiency

Increase database size

Backup database

35 / 40

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

Hash index

Bitmap index

Clustered index

36 / 40

Which factor is NOT typically considered in database index selection?

Data cardinality

Query execution frequency

Database vendor

37 / 40

Which database performance tuning technique ensures optimal disk space allocation?

Query optimization

Defragmentation

Indexing

38 / 40

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

Improved data security

Faster data recovery

Increased complexity

39 / 40

Which statement is true about SQL query optimization techniques?

Avoid using indexes

Use WHERE clause to filter rows

Increase ORDER BY clause

40 / 40

Which statement is true about clustered indexes in SQL Server?

Improve data security

Support data manipulation

Define the physical order of data rows

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Computer MCQs 360April 4, 2024

0 19 1 minute read