BIG DATA ANALYTICS

Which of the following is not a characteristic of Big Data?

1. Volume
2. Variability
3. Variety
4. Velocity

Which of the following terms is used to denote the small subsets of a large file created by HDFS?

1. NameNode
2. DataNode
3. Blocks
4. Namespace

Technology that manages traffic between virtual and physical machines is known as

1. MapReduce
2. Hadoop
3. Hypervisors
4. Virtualization

What happens, if the mapper output does not match the reducer input?

1. The Hadoop API will convert the data to the type needed by the reducer
2. Data input/output inconsistency is not permitted. Therefore, a preliminary validation check is executed prior to the full execution of the job to ensure consistency
3. The Java compiler will report an error during compilation, but the job will complete with exceptions
4. A real-time exception will be thrown, and the MapReduce job will fail

Which of the following is YARN scheduler?

1. Fair Scheduler
2. Quartz Scheduler
3. Huge Data
4. None of the above

The CREATE statement in Hive is related to

1. DDL statements
2. DML statements
3. Session control statements
4. Embedded SQL statements

Which mode of Pig is also known as the Hadoop mode?

1. Local mode
2. MapReduce mode
3. Global mode
4. Universal mode

Which of the following is a part of the unsupervised learning concept?

1. Data mining
2. Recommendation
3. Bar-graph representation
4. K-means

Which of the following analytical tools is mostly used in social sciences, marketing and healthcare?

1. R
2. SPSS
3. JMP
4. Spotfire

Write a short note on the FileInputFormat class.

What is big data? Discuss the key features of big data

How do big data analytic techniques reform the modern business industry? Discuss in detail.

Differentiate between predictive analytics and prescriptive analytics with suitable example

What is the difference between data analysis and data reporting?

Discuss the modern big data analysis tools to detect malicious activities on social media platform.

List the important feature of Hadoop. Illustrate the computing model of Hadoop with neat labelled diagram.

Explain how matrix multiplication is performed using MapReduce algorithm.

What is multivariate analysis? Discuss advantages and disadvantages of multivariate analysis.

Draw a neat labelled diagram of HDFS architecture. Briefly discuss each component of HDFS architecture.

Discuss the strength and weakness of density-based clustering algorithm.

Explain the common procedure followed for extracting reliable sample from a stream.

Compare relational databases with NoSQL databases.

What are various statements used in flow of data processing in Pig Latin?