What is the primary role of the Hadoop NameNode in the Hadoop Distributed File System (HDFS)?

Which of the following statements relating to 'role' is/are true and false?
1 The system of various roles that the individual carries and performs is 'role set'.
2. The system of various roles of which an individuals role is a part in 'role space'.
3. Self role integration, proactivity, creativity and conformation are ingredients of the role making dimension of role efficacy.
4. Role stress is caused by both role space conflict and role set conflict.

A

1 and 3 are true, 2 and 4 are false

B

1 and 2 are true, 3 and 4 are false

C

1 and 2 are false, 3 and 4 are true

D

1 and 4 are true, 2 and 3 are false

In Hadoop, what is the function of the Hadoop NameNode in the Hadoop Distributed File System (HDFS)?

A

Execute MapReduce jobs

B

Manage metadata of HDFS

C

Manage computation resources

D

Execute MapReduce jobs

In Hadoop, what is the function of the NameNode in the Hadoop Distributed File System (HDFS)?

A

Manage computation resources

B

Execute MapReduce jobs

C

Store intermediate data

D

Manage metadata of HDFS

What is the primary role of a "Data Node" in the Hadoop Distributed File System (HDFS)?

A

Storing metadata

B

Managing job scheduling

C

Storing and managing data blocks

D

Managing data visualization

What is the primary role of a "Name Node" in the Hadoop Distributed File System (HDFS)?

A

Storing metadata

B

Managing job scheduling

C

Storing and managing data blocks

D

Managing data visualization

What is the role of the Hadoop Secondary NameNode in HDFS?

A

Manage computation resources

B

Store a backup of the entire HDFS metadata

C

Failover for the NameNode

D

Manage ZooKeeper configurations

What is the main purpose of the Hadoop Distributed File System (HDFS) in a Hadoop ecosystem?

A

Real-time data processing

B

Data storage and retrieval

C

Data visualization

D

Data encryption

In Hadoop, what is the purpose of the Hadoop Distributed File System (HDFS)?

A

Real-time data processing

B

Store and manage large volumes of data

C

Distribute computation resources

D

Manage configuration files

In a distributed computing cluster, what is the primary role of a "Master Node" (or NameNode) in the Hadoop ecosystem?

A

Storing metadata

B

Managing job scheduling

C

Storing and managing data blocks

D

Managing data visualization

When a client contacts the namenode for accessing a file, the namenode responds with

A

size of the file requested

B

block id and hostname of all the data nodes containing that block

C

block id of the file requested

D

all of the above

What is the primary role of the Hadoop NameNode in the Hadoop Distributed File System (HDFS)?

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