Database Performance Tuning MCQs With Answers

Computer MCQs 360April 4, 2024

0 12 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 does the term "hotspot" refer to in database performance tuning?

Frequently accessed data

Inefficient queries

Unused database objects

2 / 40

Which statement is true about SQL indexing guidelines?

Use indexes for INSERT queries

Avoid indexing on columns with low selectivity

Index all columns

3 / 40

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

Improve query performance

Increase data redundancy

Prevent SQL injection attacks

4 / 40

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

LIMIT

TOP

ROWS

5 / 40

Which factor does NOT typically influence database performance?

Network bandwidth

Database size

Operating system version

6 / 40

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

Defragment database tables

Optimize query execution

Reduce query performance

7 / 40

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

Help the query optimizer make better decisions

Encrypt database access

Optimize network traffic

8 / 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

9 / 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

10 / 40

What is the role of database buffering in performance tuning?

Manage database backups

Audit database access

Cache frequently accessed data

11 / 40

Which SQL operation is NOT typically optimized using indexing?

SELECT

INSERT

UPDATE

12 / 40

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

Procedure

Trigger

Materialized view

13 / 40

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

Query optimization

Data encryption

Indexing

14 / 40

Which factor is NOT typically considered in database index selection?

Data cardinality

Database vendor

Query execution frequency

15 / 40

Which database performance tuning technique reduces data redundancy?

Denormalization

Normalization

Indexing

16 / 40

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

Increase database size

Reduce network traffic

Improve data security

17 / 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

18 / 40

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

Improve SQL query execution efficiency

Backup database

Increase database size

19 / 40

What is database performance tuning?

Increasing database size

Securing database access

Optimizing database operations for better efficiency

20 / 40

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

Increase database size

Optimize network traffic

Reduce disk I/O operations

21 / 40

What is the role of database partitioning in performance tuning?

Improve manageability and query performance

Backup and recovery

Increase database size

22 / 40

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

Encrypt database access

Backup and recovery

Identify performance bottlenecks

23 / 40

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

Hash index

Clustered index

Bitmap index

24 / 40

Which indexing technique stores keys in a sorted order?

Hash

Heap

B-tree

25 / 40

What is the role of database locking in performance tuning?

Backup and recovery

Control access to shared resources

Optimize query performance

26 / 40

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

Vertical partitioning

Horizontal partitioning of data across multiple servers

Data encryption

27 / 40

Which statement is true about clustered indexes in SQL Server?

Support data manipulation

Define the physical order of data rows

Improve data security

28 / 40

What is the primary purpose of indexing in a database?

Speed up data retrieval

Manage database transactions

Secure data transmission

29 / 40

Which database performance tuning technique ensures optimal disk space allocation?

Defragmentation

Query optimization

Indexing

30 / 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

31 / 40

Which SQL operation typically requires indexing for performance optimization?

SELECT

DELETE

DROP

32 / 40

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

Connection pooling

Indexing

Data encryption

33 / 40

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

Materialized views

Triggers

Stored procedures

34 / 40

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

Improved data security

Faster data recovery

Increased complexity

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

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

Reduced data security

Slower data retrieval

Increased storage space

37 / 40

Which statement is true about SQL query optimization techniques?

Use WHERE clause to filter rows

Increase ORDER BY clause

Avoid using indexes

38 / 40

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

Encrypting database

Reducing database size

Adding redundant data to improve query performance

39 / 40

Which SQL command is used to analyze query execution plans?

ANALYZE

EXPLAIN

SHOW PLAN

40 / 40

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

Reduce the overhead of opening and closing database connections

Increase network bandwidth

Improve data security

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Computer MCQs 360April 4, 2024

0 12 1 minute read