True or False: NoSQL databases provide greater performance at the expense of availability.Question 4Select one:TrueFalse

What is the primary disadvantage of NoSQL databases? Question 4Select one: Limited query capabilities Mature database tools and standards Strong consistency in distributed systems Ease of implementation

Which of the following are characteristics of NoSQL databases? Select all that apply. 1 mark is deducted for each incorrect choice.Question 2Select one or more:A.Complex query supportB.Eventual consistencyC.ACID transactionsD.Strong consistencyE.Limited horizontal scalabilityF.Horizontal scalingG.Distributed computingH.High availabilityI.Schema-free designJ.Complex joins

When do we choose a NoSQL database

What is/are the reason(s) for considering a NoSQL database, rather than a relational database?Question 8Select one or more:Select one or more:a.Complex transactions can be performed to preserve consistency across difference transactions.b.A database can allow the insertion of data without a pre-defined schema.c.High-performance queries are needed over a large amount of data, while update operations are rare.d.A declarative query language is preferred for querying data and managing data integrity.

Which of the following is/are correct?Question 4Select one or more:Select one or more:a.Some NoSQL databases let the programmer decide the trade-off between scalability and consistency.b.Different NoSQL databases may offer different levels of transaction supports.c.There are no transactions in any NoSQL databases.d.NoSQL databases define isolation levels under the BASE model .