NoSQL Database Quiz

ACID properties are primarily associated with which type of database transactions?

• NoSQL databases

• Graph databases

• Document databases

• Relational databases

BASE properties are often preferred over ACID properties in scenarios prioritizing:

• High availability and eventual consistency

• Complex joins

• Strict consistency

• Strong integrity

What is the primary purpose of database sharding?

• To improve data integrity

• To enforce ACID properties

• To reduce data redundancy

• To achieve horizontal scalability

Brewer's CAP theorem states that a distributed system cannot simultaneously guarantee which three properties?

• Consistency, Atomicity, Partition Tolerance

• Consistency, Atomicity, Durability

• Consistency, Availability, Durability

• Consistency, Availability, Partition Tolerance

Which of the following is a key characteristic of 'Big Data'?

• Low velocity, low volume, low variety

• High volume, velocity, variety

• Static data only

• Primarily small, structured datasets

Which layer of the Big Data stack is NoSQL primarily associated with?

• Data Storage and Processing

• Application Layer

• Data Analysis and Visualization

• Data Ingestion

The shift from vertical scaling to horizontal scaling in databases is often driven by the need to handle:

• Stronger ACID guarantees

• Smaller datasets

• Reduced query complexity

• Massive data growth and high traffic

What is the primary benefit of 'moving queries to data, not data to the query' in a distributed NoSQL system?

• Decreased network latency and increased efficiency

• Stronger ACID guarantees

• Simplified data modeling

• Reduced need for replication

Replication in NoSQL databases is primarily used to achieve:

• Reduced storage space

• Scalability for reads and high availability

• Centralized data management

• Strict serializable isolation

When a query is distributed across multiple data nodes in a NoSQL system, what is generally happening?

• Only the primary node executes the query.

• The entire dataset is moved to a single node for processing.

• Each node processes a portion of the query on its local data.

• All data is replicated to every node for faster access.