Welcome to the Data Storage and Querying MCQs Page

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

Check out the MCQs below to embark on an enriching journey through Data Storage and Querying. 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 Data Storage and Querying. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Data Storage and Querying MCQs | Page 19 of 21

Explore more Topics under DBMS

01

DBMS Basics

02

Data Models

03

The Entity Relationship Approach

04

Relational Databases

05

Relational Algebra

06

Normalization

07

Storage and File Structures

08

Indexing and Hashing

09

Transactions

10

Concurrency Control

11

Recovery System

12

Distributed Databases

13

SQL

14

Data Warehousing and Data Mining

15

RDBMS

16

Advanced SQL

17

SQL Queries,Constraints and Triggers

Q181.

You have a column that will only contain values from 0 to 256. What is the most economical data type to use for the column?

TINYINT

SMALLINT

INT

DECIMAL(1)

Discuss

Answer: (b).SMALLINT

Q182.

Problems occurs if we don’t implement proper locking strategy

Dirty reads

Phantom reads

Lost updates

Unrepeatable reads

Discuss

Answer: (b).Phantom reads

Q183.

Which of the following fixed database roles can add or remove user IDs?

db_accessadmin

db_securityadmin

db_setupadmin

db_sysadmin

Discuss

Answer: (a).db_accessadmin

Q184.

By default sql server has ___________ isolation level

READ COMMITTED

READ UNCOMMITTED

SERIALIZABLE

REPEATABLE READ

Discuss

Answer: (a).READ COMMITTED

Q185.

Which feature converts row data to column for better analytical view?

Views

Join

Pivot

Trigger

Discuss

Answer: (c).Pivot

Q186.

Which of the following statements is/are not true for SQL profiler?

Enables you to monitor events

Check if rows are being inserted properly

Check the performance of a stored procedure

None of the mentioned

Discuss

Answer: (c).Check the performance of a stored procedure

Q187.

Which global variables can be used to determine if a transaction is still open?

@@NESTLEVEL

@@FETCH_STATUS

@@TRANCOUNT

@@CONNECTIONS

Discuss

Answer: (c).@@TRANCOUNT

Q188.

Which statement is used to define a cursor?

OPEN

FETCH

DECLARE CURSOR

@@FETCH_STATUS

Discuss

Answer: (c).DECLARE CURSOR

Q189.

What is the default “SORT” order for a SQL?

Ascending

Descending

As specified by the user

None of the mentioned

Discuss

Answer: (a).Ascending

Q190.

Capabilities of RAISERROR

It can be logged in the error log

It can print a message to the application

It can assign an error number, state and severity

All of the mentioned

Discuss

Answer: (d).All of the mentioned

Page 19 of 21

Welcome to the Data Storage and Querying MCQs Page

Data Storage and Querying MCQs | Page 19 of 21

Explore more Topics under DBMS

DBMS Basics

Data Models

The Entity Relationship Approach

Relational Databases

Relational Algebra

Normalization

Storage and File Structures

Indexing and Hashing

Transactions

Concurrency Control

Recovery System

Distributed Databases

SQL

Data Warehousing and Data Mining

RDBMS

Advanced SQL

SQL Queries,Constraints and Triggers

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