Telephone Conversation: Jay and Prateek

Play an AI-generated podcast conversation about this lesson

What was Prateek's response when Jay told him about organizing a reunion of their college batch?

Prateek said he was too busy to attend the reunion.

Prateek refused to attend the reunion.

Prateek was not interested in attending the reunion.

Prateek expressed his eagerness to attend the reunion. (correct)

Where did Jay and Prateek plan to hold the reunion?

At a restaurant in the city where they studied.

At the college's auditorium where they had their orientation program. (correct)

At a hotel near their college campus.

At one of their classmate's homes.

Which of the following statements about Piyush is NOT true?

Piyush was a classmate of Jay and Prateek during their college days.

Piyush is currently working for a big MNC in Boston.

Piyush provided Jay with Prateek's contact information.

Piyush topped their engineering batch last year. (correct)

How did Jay get in touch with Prateek for the reunion?

Jay got Prateek's contact number from their mutual friend Piyush. Signup and view all the answers

Which of the following is true about the professors attending the reunion?

Only a few of their professors from college were invited to the reunion. Signup and view all the answers

What was the main reason Jay called Prateek?

To invite Prateek to attend the reunion of their college batch. Signup and view all the answers

What is the formula used to calculate the number of data nodes needed in Hadoop, given the initial data size is 600 TB?

N = 600/8 = 75 Signup and view all the answers

Why is it recommended to have at least 10% additional vacant space in Hadoop clusters?

To accommodate complex processing. Signup and view all the answers

What are some key responsibilities of a Hadoop Admin?

Implementation and administration of Hadoop, Testing MapReduce, Hive, Pig and Access for Hadoop Applications, Cluster maintenance tasks, Performance Tuning, Capacity planning, Monitoring Hadoop Cluster, Deploying Security. Signup and view all the answers

Which file system does Hadoop use for data storage and processing?

Hadoop Distributed File System (HDFS) Signup and view all the answers

Why is Hadoop considered an excellent software framework for processing big data elements?

It can process large sets of data using commodity hardware and a modular system. Signup and view all the answers

What is the purpose of the replication factor in Hadoop?

To provide fault tolerance and data reliability by replicating data across multiple nodes. Signup and view all the answers

Define Hadoop cluster.

A Hadoop cluster is a collection of commodity hardware devices working together as a single unit, consisting of Master and Slave nodes. Signup and view all the answers

What is the role of the Name node in a Hadoop cluster?

The Name node in a Hadoop cluster functions as a Master node, responsible for managing the metadata and coordinating the data nodes. Signup and view all the answers

Explain the function of the Resource Manager in a Hadoop cluster.

The Resource Manager in a Hadoop cluster acts as another Master node, handling resource allocation and scheduling tasks among the Node Managers. Signup and view all the answers

How can you calculate the number of data nodes required in a Hadoop cluster?

The number of data nodes needed in a Hadoop cluster can be calculated based on the storage capacity required and the replication factor chosen. Signup and view all the answers

What is the significance of the replication factor in Hadoop?

The replication factor in Hadoop determines how many copies of each block of data are stored across the cluster, ensuring fault tolerance and data reliability. Signup and view all the answers

How do you estimate data growth in a Hadoop cluster?

Data growth in a Hadoop cluster can be estimated by analyzing historical data usage patterns, business projections, and considering future expansion needs. Signup and view all the answers

What is the formula to calculate Hadoop Storage (HS) based on Compression Ratio (C), Replication Factor (R), Size of data (S), and Intermediate Factor (i)?

HS = CRS / (1-i) Signup and view all the answers

If the Compression Ratio (C) is 1, Replication Factor (R) is 3, and Intermediate Factor (i) is 0.25, what is the calculation for Hadoop Storage (HS)?

HS = 4S Signup and view all the answers

How can you estimate the number of data nodes required in Hadoop using the formula N = HS/D?

N = (CRS/(1-i)) / D Signup and view all the answers

Assuming each node has 27 disks of 1 TB each, and 2 TB is dedicated to the Operating System, what is the available Diskspace per single node?

25 TB Signup and view all the answers

If the initial Data Size is 5000 TB and the expected Hadoop Storage is 4 times the initial storage, what is the projected Hadoop Storage after the growth?

20,000 TB Signup and view all the answers

What is the standard Replication Factor used in Hadoop?

3 Signup and view all the answers