FIT9132 PASS Week 12

Which “V” refers to heterogeneity in data structure?

• Volume

• Velocity

• Variety

• Veracity

Which “V” emphasizes the rate at which data is generated and must be processed?

• Volume

• Velocity

• Variety

• Veracity

Select all that apply. Which of the following are strategies for scaling Big Data systems?

• Scaling up

• Scaling out

• Normalization

• Caching

Select all that apply. Which of the following are typical characteristics of NoSQL databases?

• Non-relational

• ACID by default

• Schema-less

• Distributed

Select all that apply. Which are the four main categories of NoSQL databases?

• Key-Value

• Document

• Column-oriented

• Graph

• XML

In a document-oriented database, records are typically stored as:

• Relational tables

• JSON or BSON documents

• Key-value pairs only

• CSV files

Which MongoDB method inserts multiple documents in one operation?

• insertOne()

• insertMany()

• saveMany()

• createMany()

Which MongoDB update operator increments a numeric field’s value?

• $set

• $inc

• $push

• $unset

Select all that apply. Which techniques are used to distribute data across nodes in NoSQL databases?

• Sharding

• Replication

• Normalization

• Indexing