_________ command is used to copy file or directories recursively.
distcp
Excellent ! Your Answer is Correct. Explanation: Usage of the distcp command: hadoop distcp .
dtcp
dcp
distc
Tag: Big Data Analytics
Point out the wrong statement.
Point out the wrong statement.
classNAME displays the class name needed to get the Hadoop jar
Excellent ! Your Answer is Correct. Explanation: classpath prints the class path needed to get the Hadoop jar and the required libraries.
Balancer Runs a cluster balancing utility
An administrator can simply press Ctrl-C to stop the rebalancing process
None of the Option is Correct
In ___________ mode, the NameNode will interactively prompt you at the command line about possible courses of action you can take to recover your data.
In ___________ mode, the NameNode will interactively prompt you at the command line about possible courses of action you can take to recover your data.
recovery
Excellent ! Your Answer is Correct. Explanation: Recovery mode can cause you to lose data, you should always backup your edit log and fsimage before using it.
partial
full
commit
HDFS supports the ____________ command to fetch Delegation Token and store it in a file on the local system.
HDFS supports the ____________ command to fetch Delegation Token and store it in a file on the local system.
fetchdt
Excellent ! Your Answer is Correct. Explanation: Delegation token can be later used to access secure server from a non secure client.
fetdt
fsk
rec
Which hdfs command is used to check for various inconsistencies?
Which hdfs command is used to check for various inconsistencies?
fsck
Excellent ! Your Answer is Correct. Explanation: fsck is designed for reporting problems with various files, for example, missing blocks for a file or under-replicated blocks.
fsk
fetchdt
None of the Option is Correct
Point out the correct statement.
Point out the correct statement.
All hadoop commands are invoked by the bin/hadoop script
Excellent ! Your Answer is Correct. Explanation: Running the hadoop script without any arguments prints the description for all commands.
Hadoop has an option parsing framework that employs only parsing generic options
Archive command creates a hadoop archive
All Options are Correct
For YARN, the ____ Manager UI provides host and port information.
For YARN, the ____ Manager UI provides host and port information.
Resource
Excellent ! Your Answer is Correct.
Data Node
NameNode
Replication
A company has stored a lot of data in HDFS of its hadoop ecosystem. They wish to search through the data at a lightning fast pace. What service can help them do that?
A company has stored a lot of data in HDFS of its hadoop ecosystem. They wish to
search through the data at a lightning fast pace. What service can help them do that?
search through the data at a lightning fast pace. What service can help them do that?
Solr
Well Done. Your Answer is Correct Keep it Up!
Hive
Kafka
Ranger
Why are both Ambari Metrics and Zookeeper needed together in a cluster?
Why are both Ambari Metrics and Zookeeper needed together in a cluster?
Ambari Metrics manage the cluster while Zookeeper is required for communication
between services
between services
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Ambari Metrics is responsible for providing the GUI while Zookeeper manages the cluster
Ambari Metrics manages resources while Zookeeper manages services
Ambari Metrics manages services while Zookeeper manages nodes
A company would like to store data and process them using data analytics. The data is
mostly semi-structured and unstructured so relational databases are insufficient. Which
service in the Hadoop ecosystem will help them store the data and process it?
A company would like to store data and process them using data analytics. The data is
mostly semi-structured and unstructured so relational databases are insufficient. Which
service in the Hadoop ecosystem will help them store the data and process it?
mostly semi-structured and unstructured so relational databases are insufficient. Which
service in the Hadoop ecosystem will help them store the data and process it?
Hbase
Well Done. Your Answer is Correct Keep it Up!
Sqoop
Hive
Solr