Big Data Quiz

What does Big Data refer to?

• Small, simple data sets

• Large and complex data sets that are difficult to process using traditional tools

• Encrypted data only

• Data that is stored exclusively in spreadsheets

Which challenge of Big Data involves collecting massive amounts of structured, semi-structured, and unstructured data from multiple sources in real time?

• Curation

• Storage

• Capture

• Visualization

Which of the following tools is used for scalable data ingestion?

• Apache Kafka

• Microsoft Excel

• Oracle Database

• SQLite

The process of cleaning inconsistencies, removing duplicates, and integrating data from multiple sources is part of which Big Data challenge?

• Analysis

• Curation

• Transfer

• Search

Which solution is typically implemented for scalable storage of Big Data?

• Hadoop HDFS

• Local file systems

• Desktop applications

• Relational databases

What is a major motivation behind the development of Hadoop?

• To manage small amounts of data

• To overcome scalability, fault tolerance, and cost issues inherent in traditional computing models

• To replace all existing database management systems

• To provide a proprietary data processing solution

Hadoop’s fault tolerance is achieved through which of the following mechanisms?

• Increasing CPU speeds

• Data replication and automatic node recovery

• Relying on a single powerful machine

• Manual intervention during node failures

Horizontal scalability in Hadoop refers to:

• Upgrading the hardware of a single machine

• Adding more machines (nodes) to the cluster without stopping the system

• Increasing the disk size on one server

• Scaling down to fewer nodes

What are the two primary phases of the MapReduce programming model?

• Map and Filter

• Map and Reduce

• Extract and Load

• Capture and Process

Which of the following is NOT a core Hadoop module?

• Hadoop Common

• Hadoop Distributed File System (HDFS)

• Hadoop YARN

• Hadoop SQL Engine