NoSQL Database Characteristics
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Questions and Answers

What type of NoSQL system is Neo4J an example of?

  • Document-based system
  • Key-value store
  • Graph Database (correct)
  • Column family system

In what type of systems are complex object lookups using a single key common?

  • Key-value stores (correct)
  • Graph Databases
  • Document-based systems
  • Column family systems

What is a key advantage of using a NoSQL system over a traditional RDBMS?

  • Improved data consistency
  • Faster data retrieval
  • Simplified data modeling
  • Improved scalability and availability (correct)

What type of NoSQL system is Apache Cassandra an example of?

<p>Column family system (B)</p> Signup and view all the answers

When is it suitable to use a traditional RDBMS?

<p>When all data and usability requirements can be achieved (D)</p> Signup and view all the answers

What is a characteristic of many emerging NoSQL systems?

<p>They allow for flexible schema design (A)</p> Signup and view all the answers

What is the primary advantage of using replication in NoSQL systems?

<p>Improved read performance (A)</p> Signup and view all the answers

What is the primary purpose of sharding in NoSQL systems?

<p>To distribute data across multiple nodes (C)</p> Signup and view all the answers

What is the primary characteristic of document-based NoSQL systems?

<p>Uses a semi-structured data model (C)</p> Signup and view all the answers

What is the primary advantage of using eventual consistency in NoSQL systems?

<p>Allows for inconsistent data reads to solve the write problem with replication (D)</p> Signup and view all the answers

What is the primary characteristic of key-value store NoSQL systems?

<p>Uses a simple data model based on fast access by the key to the value associated with the key (D)</p> Signup and view all the answers

What is the primary purpose of indexing in document-based NoSQL systems?

<p>To improve data querying performance (A)</p> Signup and view all the answers

What is the primary advantage of using NoSQL systems over traditional RDBMS?

<p>Improved scalability and high availability (C)</p> Signup and view all the answers

What is the primary limitation of document-based NoSQL systems?

<p>Does not support relationships or joins (C)</p> Signup and view all the answers

What is a characteristic of Wide Column Store NoSQL systems?

<p>Rows don't need to have the same number of columns (C)</p> Signup and view all the answers

What is a key feature of Graph Databases?

<p>Relationships are predetermined and persistent (B)</p> Signup and view all the answers

What is a notable achievement of BigTable?

<p>Demonstrated that persistent record storage could be scaled to thousands of nodes/servers (D)</p> Signup and view all the answers

What is a limitation of Dynamo DB?

<p>Data fetched from a certain node/server is not guaranteed to be up-to-date (D)</p> Signup and view all the answers

What category of NoSQL systems is Cassandra classified under?

<p>Column-Family stores (C)</p> Signup and view all the answers

What is a key concept in Wide Column Store NoSQL systems?

<p>Vertical partitioning (C)</p> Signup and view all the answers

What is a benefit of eventual consistency in Dynamo DB?

<p>Higher availability and scalability (B)</p> Signup and view all the answers

What is a common application of BigTable?

<p>Website indexing for Google Search (A)</p> Signup and view all the answers

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