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Top 100+ questions in Hadoop
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Top 100+ questions in Hadoop
0
votes
Q: Lower the opacity value, the more opaque it is.
asked
Jan 17
in
Hadoop
by
SakshiSharma
#opacity-value
0
votes
Q: Which component enforces a common set of policies across multiple data access paths in Hadoop?
asked
Jan 17
in
Hadoop
by
SakshiSharma
#hadoop-path
0
votes
Q: Which is the default HTTP Port for Apache NiFi?
asked
Jan 7
in
Hadoop
by
SakshiSharma
#apache-nifi
0
votes
Q: Which method is used to instantiate the Push notification system?
asked
Dec 6, 2020
in
Hadoop
by
rajeshsharma
#push-notification
0
votes
Q: Which of the following helps to enable pig scripts?
asked
Dec 6, 2020
in
Hadoop
by
rajeshsharma
#pig-scripts
#pig-features
0
votes
Q: How many times a session can run?
asked
Dec 6, 2020
in
Hadoop
by
rajeshsharma
#hadoop-session
#maprefuce-session
0
votes
Q: MapReduce: Simplified Data Processing on Large Clusters Who are the authors of this Paper?
asked
Dec 6, 2020
in
Hadoop
by
rajeshsharma
#simplified-data-processing
#mapreduce
0
votes
Q: Which of the operator is used to used to show values to keys used in Pig ?
asked
Dec 6, 2020
in
Hadoop
by
rajeshsharma
#pig-use
#values-pig
0
votes
Q: What are the different components of a Hive architecture?
asked
Dec 3, 2020
in
Hadoop
by
sharadyadav1986
#hive-architecture
#hive-components
0
votes
Q: What happens if requested memory or CPU cores go beyond the size of container allocation?
asked
Dec 3, 2020
in
Hadoop
by
sharadyadav1986
#yarn-memory
#yarn-cpu
0
votes
Q: In a cluster of 10 DataNodes, each having 16 GB RAM and 10 cores, what would be the total processing capacity of the cluster?
asked
Dec 3, 2020
in
Hadoop
by
sharadyadav1986
#datanoes
#yarn-cluster
#hadoop-cluster
clusters
0
votes
Q: What happens if a ResourceManager fails while executing an application in a high availability cluster?
asked
Dec 3, 2020
in
Hadoop
by
sharadyadav1986
#yarn-resource-manager
#yarn-availability
#yarn-cluster
0
votes
Q: What are the different schedulers available in YARN?
asked
Dec 3, 2020
in
Hadoop
by
sharadyadav1986
#yarn-scheduler
scheulers
0
votes
Q: Can we have more than one ResourceManager in a YARN-based cluster?
asked
Dec 3, 2020
in
Hadoop
by
sharadyadav1986
#yarn-resource-manager
#yarn-cluster
0
votes
Q: Write the YARN commands to check the status of an application and kill an application.
asked
Dec 3, 2020
in
Hadoop
by
sharadyadav1986
#yarn-commands
#yarn-applications
0
votes
Q: Which of the following has replaced JobTracker from MapReduce v1?
asked
Dec 3, 2020
in
Hadoop
by
sharadyadav1986
#jobtracker
#mapreduce-v1
0
votes
Q: Explain how YARN allocates resources to an application with the help of its architecture.
asked
Dec 3, 2020
in
Hadoop
by
sharadyadav1986
#yarn-resources
#yarn-application
0
votes
Q: What benefits did YARN bring in Hadoop 2.0 and how did it solve the issues of MapReduce v1?
asked
Dec 3, 2020
in
Hadoop
by
sharadyadav1986
#yarn-hadoop
#mapreduce-v1
0
votes
Q: Can we write the output of MapReduce in different formats?
asked
Dec 3, 2020
in
Hadoop
by
sharadyadav1986
#mapreduce
#mapreduce-formats
0
votes
Q: What happens when a node running a map task fails before sending the output to the reducer?
asked
Nov 24, 2020
in
Hadoop
by
rahuljain1
#reducer-task-fail
#node-map-task-fails
0
votes
Q: How can you set the mappers and reducers for a MapReduce job?
asked
Nov 24, 2020
in
Hadoop
by
rahuljain1
#reducers
#mapreduce-reducers
0
votes
Q: Explain the process of spilling in MapReduce.
asked
Nov 24, 2020
in
Hadoop
by
rahuljain1
#mapreduce-spilling
#mapreduce-process
0
votes
Q: What is the role of the OutputCommitter class in a MapReduce job?
asked
Nov 24, 2020
in
Hadoop
by
rahuljain1
#output-committer
#mapreduce-jobs
0
votes
Q: What do you mean by map-side join and reduce-side join in MapReduce?
asked
Nov 24, 2020
in
Hadoop
by
rahuljain1
#mapreduce-map-side
map-side
0
votes
Q: How is identity mapper different from chain mapper?
asked
Nov 24, 2020
in
Hadoop
by
rahuljain1
#hadoop-mapper
#mapper
0
votes
Q: What is speculative execution in Hadoop?
asked
Nov 24, 2020
in
Hadoop
by
rahuljain1
#hadoop-speculative-execution
#hadoop-execution
0
votes
Q: Hadoop Interview Questions and Answer, HDFS and MapReduce Questions
asked
Nov 8, 2020
in
Hadoop
by
rahuljain1
#hadoop-interview-questions
0
votes
Q: How to submit extra files(jars, static files) for MapReduce job during runtime?
asked
Nov 8, 2020
in
Hadoop
by
rahuljain1
#mapreduce-job-run-time
0
votes
Q: What is a Speculative Execution in Hadoop MapReduce?
asked
Nov 8, 2020
in
Hadoop
by
rahuljain1
#speculative-execution
0
votes
Q: What is the fundamental difference between a MapReduce InputSplit and HDFS block?
asked
Nov 8, 2020
in
Hadoop
by
rahuljain1
#mapreduce-inputsplit
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