Take MySQL Indexing Mastery Quiz

#1 What is the primary purpose of creating an index in MySQL?

Single choice • 1 point

To reduce storage space

To speed up data retrieval

To enforce data integrity

To simplify queries

#2 Which type of index allows for faster searches in a table with a unique constraint?

Single choice • 1 point

Full-text index

Unique index

Composite index

Spatial index

#3 True or False: Adding an index always improves database performance.

True/False • 1 point

True

False

#4 Which of the following statements is true regarding composite indexes?

Multiple choice • 1 point

They can include multiple columns

They are always faster than single column indexes

They optimize queries that filter on multiple columns

They can only be created on primary keys

#5 What is a full-text index used for in MySQL?

Single choice • 1 point

To optimize numeric data queries

To search text data efficiently

To enforce data uniqueness

To index spatial data

#6 When should you consider dropping an index?

Multiple choice • 1 point

When it is rarely used

When it negatively impacts write performance

When it is on a frequently updated column

When it matches a primary key

#7 Which command would you use to create an index on a column named 'email'?

Single choice • 1 point

CREATE INDEX email_index ON users (email);

ADD INDEX email ON users (email);

INDEX users (email);

CREATE INDEX ON users (email);

#8 What is the effect of a clustered index on a table?

Single choice • 1 point

It speeds up all types of queries

It defines the physical order of data

It only indexes unique values

It can be created on any column

#9 True or False: An index can be created on a view in MySQL.

True/False • 1 point

True

False

#10 Which MySQL function can be used to analyze the performance of queries involving indexes?

Single choice • 1 point

EXPLAIN

ANALYZE

PROFILE

OPTIMIZE

MySQL Indexing Mastery Quiz

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