NoSQL & MongoDB

What does NoSQL stand for?

• Not Optimized SQL

• Non-SQL Databases

• Not Only SQL

• Non-Structured Query Language

Which of the following is a key feature of NoSQL databases?

• Fixed schema

• Joins required for data retrieval

• Flexible schema

• Limited scalability

Which type of scaling is commonly associated with NoSQL databases?

• Vertical scaling

• Horizontal scaling

• Diagonal scaling

• None of the above

In MongoDB, data is stored in which format?

• Tables

• Rows and columns

• Documents

• Key-Value Pairs

Which type of NoSQL database is MongoDB?

• Key-Value Store

• Document Database

• Wide-Column Store

• Graph Database

What is a BSON document?

• A type of SQL query

• A compressed version of JSON

• Binary representation of JSON

• None of the above

What is the process of increasing the capacity of a single machine called?

• Horizontal scaling

• Load balancing

• Vertical scaling

• Sharding

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

• Document databases

• Key-Value databases

• Wide-column stores

• Relational databases

In MongoDB, what is used to uniquely identify a document?

• _docID

• _id

• docUUID

• document_key

What is a disadvantage of vertical scaling?

• High implementation cost

• Increased latency

• Single-point failure

• Requires load balancers