Cloud Databases: A Comprehensive Guide for Cloud Computing Professionals

Question 1

What is a defining characteristic of cloud databases?

Accepted Answer

Elastic scalability

Answer

Limited customization

Answer

High upfront costs

Answer

Weak data protection

Question 2

When choosing a cloud database for an application, which factors should be considered?

Accepted Answer

Performance, cost, scalability, and data type

Answer

Data storage capacity only

Answer

Type of data to be stored only

Answer

Security features only

Question 3

What is a key advantage of using cloud databases?

Accepted Answer

Lower maintenance and administration expenses

Answer

Limited scalability and flexibility

Answer

Increased risk of data breaches and privacy concerns

Question 4

Which of the following is NOT a type of cloud database?

Accepted Answer

Email

Answer

SQL

Answer

NoSQL

Answer

Object Storage

Question 5

Which of the following is a defining characteristic of cloud databases?

Accepted Answer

Data storage and management are outsourced to a cloud provider.

Answer

Databases reside on servers owned and managed by the organization.

Answer

Requires substantial in-house IT expertise to maintain and operate.

Answer

Data is stored on physical hardware owned by the user.

Question 6

Which of the following is a widely used open-source NoSQL database?

Accepted Answer

MongoDB

Answer

MySQL

Answer

Oracle Database

Answer

IBM DB2

Question 7

What is the function of a database schema in a cloud database environment?

Accepted Answer

Defines the structure and organization of the data

Answer

Provides a physical representation of the data

Answer

Ensures data integrity and consistency

Answer

Controls access to the data

Question 8

What is the primary purpose of a database management system (DBMS) in a cloud database context?

Accepted Answer

Manages and optimizes database resources

Answer

Provides a graphical interface for database administration

Answer

Ensures data security and prevents unauthorized access

Answer

Creates and modifies database schemas

Question 9

How does data replication contribute to enhancing the availability of a cloud database?

Accepted Answer

By creating multiple copies of the data in different geographic locations

Answer

By leveraging backup and restore procedures to retrieve lost data

Answer

By employing load balancing techniques to distribute requests

Answer

By encrypting the data to prevent unauthorized access

Question 10

Which characteristic is NOT applicable to cloud databases?

Accepted Answer

Direct dependency on physical hardware

Answer

High scalability

Answer

Guaranteed reliability

Answer

Persistent data storage

Question 11

Which scenario is most appropriate for utilizing a NoSQL database?

Accepted Answer

Storing user profiles in a social media platform.

Answer

Processing financial transactions securely.

Answer

Maintaining inventory data in a warehouse.

Answer

Storing relational customer data in a CRM system.

Question 12

What is the primary distinction between a cloud database and a traditional on-premises database?

Accepted Answer

Responsibility for ownership and management.

Answer

Physical location of data storage.

Answer

Performance capabilities and limitations.

Answer

Security features and protocols.

Question 13

What is the defining characteristic of a hybrid cloud database?

Accepted Answer

Combines elements of both cloud and on-premises databases.

Answer

Fully managed and controlled by a single cloud provider.

Answer

Accessible exclusively through the internet.

Answer

Not suitable for critical applications due to latency concerns.

Question 14

What are two key features of cloud databases?

Accepted Answer

Scalability to handle varying workloads

Accepted Answer

Reliability to ensure high availability and data durability

Answer

Fixed cost regardless of usage

Question 15

Which database design best practice contributes to efficient data management in cloud databases?

Accepted Answer

Data normalization to minimize redundancy

Answer

Avoiding the use of indexes

Answer

Using complex data types to accommodate all information

Question 16

Which of the following is a primary advantage of using cloud databases?

Accepted Answer

Reduced infrastructure costs

Answer

Complex data management

Answer

Limited scalability

Answer

Guaranteed data privacy

Question 17

Which of the following is a popular cloud-based SQL database service offered by Amazon Web Services?

Accepted Answer

Amazon RDS

Answer

DynamoDB

Answer

Cassandra

Answer

MongoDB

Question 18

What is a key difference between document-oriented databases and relational databases?

Accepted Answer

Flexible schema structure

Answer

Limited scalability

Answer

Use of SQL for querying

Answer

Data storage in tables

Question 19

Which cloud database service is renowned for its exceptional high availability and durability?

Accepted Answer

DynamoDB

Answer

MongoDB

Answer

PostgreSQL

Answer

MySQL

Question 20

What is a common security challenge associated with cloud databases?

Accepted Answer

Data breaches

Answer

Software bugs

Answer

Physical hardware failures

Answer

Network connectivity issues

Question 21

Which of the following is considered a best practice for managing user access to cloud databases?

Accepted Answer

Implement role-based access control

Answer

Disable auditing features

Answer

Allow unrestricted public access

Answer

Use weak or easily guessable passwords

Question 22

What is a key benefit of using NoSQL databases in cloud-based applications?

Accepted Answer

Enhanced performance for unstructured data

Answer

Simplified database design

Answer

Reduced data loss

Answer

Increased data integrity