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Welcome to the Indexing and Hashing MCQs Page

Dive deep into the fascinating world of Indexing and Hashing with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Indexing and Hashing, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of Indexing and Hashing, 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 DBMS.

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Check out the MCQs below to embark on an enriching journey through Indexing and Hashing. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of DBMS.

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

Indexing and Hashing MCQs | Page 1 of 15

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Q1.
What is the purpose of index in sql server

a.

To enhance the query performance

b.

To provide an index to a record

c.

To perform fast searches

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q2.
How many types of indexes are there in sql server?

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (b).2
Q3.
How non clustered index point to the data?

a.

It never points to anything

b.

It points to a data row

c.

It is used for pointing data rows containing key values

d.

None of the mentioned

Discuss
Answer: (c).It is used for pointing data rows containing key values
Q4.
Which one is true about clustered index?

a.

Clustered index is not associated with table

b.

Clustered index is built by default on unique key columns

c.

Clustered index is not built on unique key columns

d.

None of the mentioned

Discuss
Answer: (b).Clustered index is built by default on unique key columns
Q5.
What is true about indexes?

a.

Indexes enhance the performance even if the table is updated frequently

b.

It makes harder for sql server engines to work to work on index which have large keys

c.

It doesn’t make harder for sql server engines to work to work on index which have large keys

d.

None of the mentioned

Discuss
Answer: (b).It makes harder for sql server engines to work to work on index which have large keys
Q6.
Does index take space in the disk ?

a.

It stores memory as and when required

b.

Yes, Indexes are stored on disk

c.

Indexes are never stored on disk

d.

Indexes take no space

Discuss
Answer: (b).Yes, Indexes are stored on disk
Q7.
What are composite indexes ?

a.

Are those which are composed by database for its internal use

b.

A composite index is a combination of index on 2 or more columns

c.

Composite index can never be created

d.

None of the mentioned

Discuss
Answer: (b).A composite index is a combination of index on 2 or more columns
Q8.
In _______________ index instead of storing all the columns for a record together, each column is stored separately with all other rows in an index.

a.

Clustered

b.

Column store

c.

Non clustered

d.

Row store

Discuss
Answer: (b).Column store
Q9.
A _________________ index is the one which satisfies all the columns requested in the query without performing further lookup into the clustered index.

a.

Clustered

b.

Non Clustered

c.

Covering

d.

B-Tree

Discuss
Answer: (c).Covering
Q10.
A(n) _________ can be used to preserve the integrity of a document or a message.

a.

Message digest

b.

Message summary

c.

Encrypted message

d.

None of the mentioned

Discuss
Answer: (c).Encrypted message
Page 1 of 15

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