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Welcome to the Distributed Databases MCQs Page

Dive deep into the fascinating world of Distributed Databases with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Distributed Databases, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of Distributed Databases, 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 Distributed Databases. 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 Distributed Databases. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Distributed Databases MCQs | Page 1 of 5

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Q1.
A distributed database has which of the following advantages over a centralized database?

a.

Software cost

b.

Software complexity

c.

Slow Response

d.

Modular growth

Discuss
Answer: (d).Modular growth
Q2.
An autonomous homogenous environment is which of the following?

a.

The same DBMS is at each node and each DBMS works independently.

b.

The same DBMS is at each node and a central DBMS coordinates database access.

c.

A different DBMS is at each node and each DBMS works independently.

d.

A different DBMS is at each node and a central DBMS coordinates database access.

Discuss
Answer: (a).The same DBMS is at each node and each DBMS works independently.
Q3.
A transaction manager is which of the following?

a.

Maintains a log of transactions

b.

Maintains before and after database images

c.

Maintains appropriate concurrency control

d.

All of the above

Discuss
Answer: (d).All of the above
Q4.
Location transparency allows for which of the following?

a.

Users to treat the data as if it is at one location

b.

Programmers to treat the data as if it is at one location

c.

Managers to treat the data as if it is at one location

d.

All of the above

Discuss
Answer: (d).All of the above
Q5.
A heterogeneous distributed database is which of the following?

a.

The same DBMS is used at each location and data are not distributed across all nodes.

b.

The same DBMS is used at each location and data are distributed across all nodes.

c.

A different DBMS is used at each location and data are not distributed across all nodes.

d.

A different DBMS is used at each location and data are distributed across all nodes.

Discuss
Answer: (d).A different DBMS is used at each location and data are distributed across all nodes.
Q6.
Some of the columns of a relation are at different sites is which of the following?

a.

Data Replication

b.

Horizontal Partitioning

c.

Vertical Partitioning

d.

Horizontal and Vertical Partitioning

Discuss
Answer: (c).Vertical Partitioning
Q7.
Which of the following is true concerning a global transaction?

a.

The required data are at one local site and the distributed DBMS routes requests as necessary.

b.

The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary.

c.

The required data are at one local site and the distributed DBMS passes the request to only the local DBMS.

d.

The required data are located in at least one nonlocal site and the distributed DBMS passes the request to only the local DBMS.

Discuss
Answer: (b).The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary.
Q8.
A homogeneous distributed database is which of the following?

a.

The same DBMS is used at each location and data are not distributed across all nodes.

b.

The same DBMS is used at each location and data are distributed across all nodes.

c.

A different DBMS is used at each location and data are not distributed across all nodes.

d.

A different DBMS is used at each location and data are distributed across all nodes.

Discuss
Answer: (b).The same DBMS is used at each location and data are distributed across all nodes.
Q9.
Replication should be used when which of the following exist?

a.

When transmission speeds and capacity in a network prohibit frequent refreshing of large tables.

b.

When using many nodes with different operating systems and DBMSs and database designs.

c.

The application's data can be somewhat out-of-date.

d.

All of the above.

Discuss
Answer: (c).The application's data can be somewhat out-of-date.
Q10.
Storing a separate copy of the database at multiple locations is which of the following?

a.

Data Replication

b.

Horizontal Partitioning

c.

Vertical Partitioning

d.

Horizontal and Vertical Partitioning

Discuss
Answer: (a).Data Replication
Page 1 of 5

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