MongoDB - M100 questions with correct answers

What of the following are some of the main features of MongoDB? - correct answer - Fault tolerance is natively built into MongoDB by keeping redundant copies of the same data on different servers - Scalability allows to seamlessly scale across multiple servers to store and process data -MongoDB lets you move data where you need it, so you can keep data near users NoSQL families - correct answer - key/value - graph -column - document What are correct statements about NoSQL databases? - correct answer - Most NoSQL databases have built-in modern features like redundancy and tolerance to failures - NoSQL databases were designed to scale large datasets horizontally Which of the following terms is used in MongoDB to map the concept of a row in RDBMS? - correct answer document Which of the following terms is used in MongoDB to map the concept of a table in RDBMS? - correct answer collection Which statements are good descriptions of the Document Model used in MongoDB? - correct answer - it is similar to map in Java and dictionaries in Python - it allows us to model one-to-one and one-to-many relationship ACID with MongoDB Document - correct answer Atomic - all write to one document are done at once Consistency - no dependency on other documents