Indexes DBMS Questions And Answers

Here you can find Indexes DBMS Questions and Answers.

Why Indexes DBMS Questions and Answers Required?

In this Indexes DBMS Questions and Answers section you can learn and practice Indexes DBMS Questions and Answers to improve your skills in order to face technical inerview conducted by organisations. By Practicing these interview questions, you can easily crack any Exams interview.

Where can I get Indexes DBMS Questions and Answers?

AllIndiaExams provides you lots Indexes DBMS Questions and Answers with proper explanation. Fully solved examples with detailed answer description. All students, freshers can download Indexes DBMS Questions and Answers as PDF files and eBooks.

How to solve these Indexes DBMS Questions and Answers?

You no need to worry, we have given lots of Indexes DBMS Questions and Answers and also we have provided lots of FAQ's to quickly answer the questions in the Competitive Exams interview.

Indexes DBMS Questions and Answers

1. What is the purpose of index in sql server

Indexes DBMS Questions and Answers

2. How many types of Indexes DBMS are there in sql server?

Indexes DBMS Questions and Answers

3. How non clustered index point to the data?

Indexes DBMS Questions and Answers

4. Which one is true about clustered index?

Indexes DBMS Questions and Answers

5. What is true about Indexes DBMS?

Indexes DBMS Questions and Answers

6. Does index take space in the disk ?

Indexes DBMS Questions and Answers

7. What are composite Indexes DBMS ?

Indexes DBMS Questions and Answers

8. If an index is _________________ the metadata and statistics continue to exists

Indexes DBMS Questions and Answers

9. In _______________ index instead of storing all the columns for a record together, each column is stored separately with all other rows in an index.

Indexes DBMS Questions and Answers

10. A _________________ index is the one which satisfies all the columns requested in the query without performing further lookup into the clustered index.

Indexes - DBMS Questions and Answers

This is the DBMS questions and answers section on "Indexes" with explanation for various interview, competitive examination and entrance test. Solved examples with detailed answer description, explanation are given and it would be easy to understand.

Indexes DBMS Questions

Online Test Name	Indexes
Exam Type	Multiple Choice Questions
Category	Computer Science Engineering Quiz
Number of Questions	10

1. 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

Answer & Explanation

Answer: Option D

Explanation:

All of the mentioned

A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes.

Workspace

Report Error

2. How many types of indexes are there in sql server?

A. 1
B. 2
C. 3
D. 4

Answer & Explanation

Answer: Option B

Explanation:

They are clustered index and non clustered index.

Workspace

Report Error

3. 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

Answer & Explanation

Answer: Option C

Explanation:

It is used for pointing data rows containing key values

Nonclustered indexes have a structure separate from the data rows. A nonclustered index contains the nonclustered index key values and each key value entry has a pointer to the data row that contains the key value.

Workspace

Report Error

4. 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

Answer & Explanation

Answer: Option B

Explanation:

Clustered index is built by default on unique key columns

Workspace

Report Error

5. 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