Big Data Processing Quiz

What is the purpose of data wrangling in Big Data processing?

• To store data in its original format

• To prepare data for downstream analysis by filtering and cleansing

• To reduce the size of the datasets

• To connect different servers in a network

Which of the following is a reason storage is required in a Big Data environment?

• When data is manipulated for data analysis

• When external datasets are acquired

• After data is processed via an ETL activity

• All of the above

What is a cluster in the context of Big Data?

• A collection of unrelated servers spread across the internet

• A loosely connected group of computers sharing storage space

• A tightly coupled collection of servers with the same hardware specifications

• A single computer with high processing power

How does a cluster execute a task?

• By using one computer to perform the entire task

• By splitting the task into small pieces and distributing them across different computers in the cluster

• By storing the task in multiple copies across servers

• By processing the task in a central server and then sending the results to other nodes

What is the primary function of a file system?

• To encrypt data on a storage device

• To store and organize data on a storage device

• To increase the processing speed of a computer

• To manage the power supply to a storage device

Which of the following is an example of a file system used on Windows?

• ext

• HDFS

• NTFS

• GFS

What is a distributed file system?

• A system that encrypts files across multiple nodes

• A system that duplicates files for backup purposes

• A system that can store large files spread across the nodes of a cluster

• A system that prevents unauthorized access to files on a network

Which of the following is NOT a characteristic of a distributed file system?

• Files appear to be local to the client

• Files are physically distributed throughout the cluster

• Files cannot be accessed from multiple locations

• It provides a logical view of files spread across nodes

Which of the following distributed file systems is mentioned in the text?

• Amazon Elastic File System (EFS)

• Google File System (GFS)

• IBM Spectrum Scale

• Microsoft Azure File Storage

What is sharding in the context of distributed file systems?

• The process of vertically partitioning a large dataset

• The process of horizontally partitioning a large dataset into smaller datasets called shards

• The process of duplicating the entire dataset on multiple servers

• The process of compressing data to fit into a single server