Introduction to NoSQL Databases

Which factor primarily drove the rise of NoSQL databases by necessitating horizontal scaling?

NoSQL databases universally guarantee ACID properties for transactions.

What term describes the storage of closely related data in a rich structure that is accessed as a single unit in NoSQL databases?

The difficulty of handling ______ between entities in different aggregates is a downside of aggregate data models.

Match the following data models with their corresponding database examples:

Which of the following is NOT a common distribution model used by NoSQL databases to run on clusters?

In master-slave replication, all write operations are typically directed to the slave nodes to improve read performance.

What is the term for dividing data across multiple machines in a NoSQL database to improve scalability?

______ combines data from multiple sources into a single view, which is beneficial for reporting.

Match the consistency model with its description:

Which theorem states that it is impossible for a distributed system to simultaneously guarantee consistency, availability, and partition tolerance?

Relaxing durability always leads to data loss and is therefore not a viable option for most applications.

What mechanism is used for keeping track of changes and detecting inconsistencies?

______ is a way of organizing parallel computation that fits in well with clusters and thus with NoSQL systems.

Match the following concepts with the corresponding descriptions:

What is a common concern when changing the structure of data in a schemaless database?

The book argues that NoSQL is a single technology that will ultimately replace relational databases.

What is the term for the concept where multiple data-storage worlds coexist, even within the same application?

Data ______ is vital to understand, even as underlying technology changes.

Match the term with it's description:

Which of the following is an advantage of using a single database engine for all requirements?

In RDBMS, the requirements of OLAP and OLTP systems are usually the same.

What is the term coined by Neal Ford to express the idea that applications should be written in a mix of languages to take advantage?

In the context of an e-commerce problem, using a data store for the shopping cart which is highly available and can scale is ______.

Match the data stores to their use cases:

When are multiple data stores in an application beneficial?

It is best practice to change the data storage for a specific usage, even if existing legacy applications depend on the storage.

What can be added for better performance by existing data storage?

In the world of polyglot persistence, the DBA groups will have to become more ______—to learn how some of these NoSQL technologies work, how to monitor these systems, back them up, and take data out of and put into these systems.

Match the following NoSQL products to descriptions:

With the NoSQL databases, what owns the data and serves it using services?

Deployment complexity needs careful consideration with Polyglot Persistence

What should be weighed against the complexity increase from adding more data storage technologies?

By handling relational databases, the relationship with the data storage will change so we can ______.

Match the following:

What does the enterprise ensure for data warehouse systems?

The ETL tools have no difficulty talking to the Data warehouse?

What provides a great use case for NoSQL databases that allow you to write large volumes of data?

To install a database, all that needs to be done is ______ and unzip the archive, which can be automated using curl and unzip commands.

Can enterprises run analytics?