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1
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What is the use of Context object in Hadoop?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hadoop-context
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
2
answers
What are the primary phases of a Reducer in Hadoop?
asked
Jan 11, 2020
in
Big Data | Hadoop
#reducer-phases
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What are the core methods of a Reducer in Hadoop?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hadoop-reducer
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What will happen when NameNode is down and a user submits a new job?
asked
Jan 11, 2020
in
Big Data | Hadoop
#namenode-down
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
Why do we use fsck command in HDFS?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hdfs-fsck
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
How will you check if a file exists in HDFS?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hdfs-file-exists
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
If we set Replication factor 3 for a file, does it mean any computation will also take place 3 times?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hadoop-replication
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is the meaning of Rack Awareness in Hadoop?
asked
Jan 11, 2020
in
Big Data | Hadoop
#rack-awareness
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What happens if HDFS file is set with replication factor of 1 and DataNode crashes?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hdfs-namenode-crash
#hdfs-datanode-crash
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What are the main functions of Secondary NameNode?
asked
Jan 11, 2020
in
Big Data | Hadoop
#secondary-namenode
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What would happen if NameNode crashes in a HDFS cluster?
asked
Jan 11, 2020
in
Big Data | Hadoop
#namenode-crashes
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What data is stored in a HDFS NameNode?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hdfs-namenode
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
How does indexing work in Hadoop?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hadoop-indexing
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What are the two messages that NameNode receives from DataNode in Hadoop?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hadoop-datanode
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is the difference between NAS and DAS in Hadoop cluster?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hadoop-nas
hadoop-das
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is Replication factor in HDFS, and how can we set it?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hdfs-replication
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
How can we update a file at an arbitrary location in HDFS?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hdfs-arbitary
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
How does inter cluster data copying works in Hadoop?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hadoop-cluster
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
Why do we use commodity hardware in Hadoop?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hadoop-commodity
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
How will you get the distance between two nodes in Apache Hadoop?
asked
Jan 11, 2020
in
Big Data | Hadoop
#apache-hadoop
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
How will you disable a Block Scanner on HDFS DataNode?
asked
Jan 11, 2020
in
Big Data | Hadoop
#block-scanner-hdfs
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What are the default port numbers on which Name Node, Job Tracker and Task Tracker run in Hadoop?
asked
Jan 11, 2020
in
Big Data | Hadoop
#task-tracker
Bigdata-questions-answers
Hadoop-questions-answers
+1
vote
1
answer
What do you know about Block and Block scanner in HDFS?
asked
Jan 11, 2020
in
Big Data | Hadoop
#block-scanner-hdfs
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is the optimum hardware configuration to run Apache Hadoop?
asked
Jan 11, 2020
in
Big Data | Hadoop
#apache-optimum-configuration
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is the difference between NameNode, Backup Node and Checkpoint NameNode in HDFS?
asked
Jan 11, 2020
in
Big Data | Hadoop
#namenode
#hdfs-namenode
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is Hadoop Streaming?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hadoop-steaming
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is the core concept behind Apache Hadoop framework?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hadoop-framework-concept
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What are the main components of a Hadoop Application?
asked
Jan 11, 2020
in
Big Data | Hadoop
#hadoop-components
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is the difference between Structured and Unstructured Big Data?
asked
Jan 11, 2020
in
Big Data | Hadoop
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What are the four Vs of Big Data?
asked
Jan 11, 2020
in
Big Data | Hadoop
#big-data
Bigdata-questions-answers
Hadoop-questions-answers
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