During start up, the ___________ loads the file system state from the fsimage and the edits log file.
Namenode
Explanation: HDFS is implemented on any computer which can run Java can host a NameNode/DataNode on it.
Datanode
Block
ActionNode
Tag: Hadoop HDFS
HDFS is implemented in _____________ language.
HDFS is implemented in _____________ language.
Java
Explanation: HDFS is implemented in Java and any computer which can run Java can host a NameNode/DataNode on it.
Perl
Python
C
Which of the following is not Features Of HDFS?
Which of the following is not Features Of HDFS?
Hadoop does not provides a command interface to interact with HDFS.
Explanation: The correct feature is Hadoop provides a command interface to interact with HDFS.
Streaming access to file system data.
It is suitable for the distributed storage and processing.
Hadoop does not provides a command interface to interact with HDFS.
For every node (Commodity hardware/System) in a cluster, there will be a _________.
For every node (Commodity hardware/System) in a cluster, there will be a _________.
Datanode
Explanation: For every node (Commodity hardware/System) in a cluster, there will be a datanode.
Block
namenode
None of the Option is correct
The default block size is ______.
The default block size is ______.
64MB
Explanation: The default block size is 64MB, but it can be increased as per the need to change in HDFS configuration.
32MB
128MB
16MB
The minimum amount of data that HDFS can read or write is called a _____________.
The minimum amount of data that HDFS can read or write is called a _____________.
Block
Explanation: The minimum amount of data that HDFS can read or write is called a Block.
Datanode
Namenode
None of the Option is correct
________ NameNode is used when the Primary NameNode goes down.
________ NameNode is used when the Primary NameNode goes down.
Secondary
Explanation: Secondary namenode is used for all time availability and reliability.
Data
Secondary
None of the Option is correct