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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.

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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 1 of 21

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Q1.
Which of the following is correct regarding Aggregate functions?

a.

it takes a list of values and return a single values as result

b.

it takes a list of values and return a list of values as result

c.

it takes a single value and returns a list of values as result

d.

it takes a single value and returns a single value as result

Discuss
Answer: (a).it takes a list of values and return a single values as result
Q2.
Which of the following option is use to retrieval of data?

a.

Stack

b.

Data Structure

c.

Linked list

d.

Query

Discuss
Answer: (d).Query
Q3.
Establishing limits on allowable property values, and specifying a set of acceptable, predefined options that can be assigned to a property are examples of:

a.

Attributes

b.

Data integrity constraints

c.

Method constraints

d.

Referential integrity constraints

Discuss
Answer: (b).Data integrity constraints
Q4.
______ is a special type of integrity constraint that relates two relations & maintains consistency across the relations.

a.

Entity Integrity Constraints

b.

Referential Integrity Constraint

c.

Domain Integrity Constraints

d.

Domain Constraints

Discuss
Answer: (b).Referential Integrity Constraint
Q5.
Which of the following is a physical storage media ?

a.

Tape Storage

b.

Optical Storage

c.

Flash memory

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q6.
Which of the following creates a virtual relation for storing the query ?

a.

Function

b.

View

c.

Procedure

d.

None of the mentioned

Discuss
Answer: (b).View
Q7.
Which of the following is the syntax for views where v is view name ?

a.

Create view v as “query name”;

b.

Create “query expression” as view;

c.

Create view v as “query expression”;

d.

Create view “query expression”;

Discuss
Answer: (c).Create view v as “query expression”;
Q8.
Select course_id
from physics_fall_2009
where building= ’Watson’;

Here the tuples are selected from the view.Which one denotes the view ?

a.

Course_id

b.

Watson

c.

Building

d.

physics_fall_2009

Discuss
Answer: (c).Building
Q9.
Materialised views make sure that

a.

View definition is kept stable

b.

View definition is kept up-to-date

c.

View definition is verified for error

d.

View is deleted after specified time

Discuss
Answer: (b).View definition is kept up-to-date
Q10.
Updating the value of the view

a.

Will affect the relation from which it is defined

b.

Will not change the view definition

c.

Will not affect the relation from which it is defined

d.

Cannot determine

Discuss
Answer: (a).Will affect the relation from which it is defined
Page 1 of 21

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