NoSQL Databases Quiz

Which type of NoSQL database is described as having data stored in rows and queries performed via column-based access?

• Column-Family

• Graph

• Document

• Key-Value

Answer explanation

Column-Family databases store data in rows and allow queries via column-based access, making it the correct choice for this question.

What is the data model used in Graph databases to store highly complex and connected data?

• Property graph

• Key-Value model

• Relational model

• Document model

Answer explanation

The data model used in Graph databases to store highly complex and connected data is the Property graph.

In which use case would a graph database be useful for consolidating disparate data?

• Customer 360

• IoT and Networking

• Personalisation and Recommendation

• Security and Fraud Detection

Answer explanation

A graph database would be useful for consolidating disparate data in the use case of Customer 360, where relationships between customers and their interactions need to be analyzed and connected efficiently.

What is the main focus of graph databases when storing, managing, and querying data?

• Data speed

• Data security

• Data volume

• Data relationships

Answer explanation

The main focus of graph databases is on storing, managing, and querying data relationships, making them ideal for handling complex interconnections between data points.

What is the main advantage of using a graph model for security and fraud detection?

• Isolation of transactions

• Contextual analysis

• Data encryption

• Real-time monitoring

Answer explanation

The main advantage of using a graph model for security and fraud detection is contextual analysis, which allows for a deeper understanding of relationships and patterns within the data to identify potential security threats.

Which type of NoSQL database is described as having documents in JSON format with each document assigned a single key?

• Graph

• Document

• Column-Family

• Key-Value

Answer explanation

Document NoSQL databases store documents in JSON format with each document assigned a single key.

What is the primary concern of graph databases when compared to relational databases?

• Data storage

• Data relationships

• Data processing

• Data security

Answer explanation

The primary concern of graph databases when compared to relational databases is data relationships, as graph databases excel in storing and querying complex relationships between data entities.

In which use case would a graph database be useful for understanding how data elements relate to each other over time?

• Personalisation and Recommendation

• Customer 360

• Security and Fraud Detection

• IoT and Networking

Answer explanation

A graph database would be useful for understanding how data elements relate to each other over time in the IoT and Networking use case due to the complex and interconnected nature of data in these scenarios.

What is the data model used in graph databases to express relatedness and focus on relationships rather than entities?

• Property graph

• Key-Value model

• Relational model

• Document model

Answer explanation

Property graph is the data model used in graph databases to express relatedness and focus on relationships rather than entities.