Category: Hadoop HDFS

Point out the wrong Statement.

administrator
Point out the wrong Statement.
All Options are Correct
Well Done. Your Answer is Correct Keep it Up!
The other flavor of HDInsight interactive console is based on JavaScript
Microsoft and HortonWorks have re-implemented the key binaries a executables
The distribution consists of Hadoop 1.1.0, Pig 0.9.3, Mahout 0.5 and Sqoop 1.4.2

Related Posts:

HDFS Federation is useful for the cluster size of:

administrator
HDFS Federation is useful for the cluster size of:
> 5000 nodes
Excellent ! Your Answer is Correct.
>900 nodes
>500 nodes
> 3500 nodes

Related Posts:

The HDFS file system is temporarily unavailable whenever the HDFS ________ is down.

administrator
The HDFS file system is temporarily unavailable whenever the HDFS ________ is down.
NameNode
Excellent ! Your Answer is Correct. Explanation: When the HDFS NameNode is restarted it recovers its metadata.
DataNode
ActionNode
None of the Option is Correct

Related Posts:

HDFS, by default, replicates each data block _____ times on different nodes and on at least ____ racks.

administrator
HDFS, by default, replicates each data block _____ times on different nodes and on at least ____ racks.
3, 2
Excellent ! Your Answer is Correct. Explanation: HDFS has a simple yet robust architecture that was explicitly designed for data reliability in the face of faults and failures in disks, nodes and networks.
1, 2
2, 3
All Options are Correct

Related Posts:

__________ support storing a copy of data at a particular instant of time.

administrator
__________ support storing a copy of data at a particular instant of time.
Snapshots
Excellent ! Your Answer is Correct. Explanation: One usage of the snapshot feature may be to roll back a corrupted HDFS instance to a previously known good point in time.
Datanots
Data Image
All Options are Correct

Related Posts:

Point out the wrong statement.

administrator
Point out the wrong statement.
HDFS is designed to support small files only
Excellent ! Your Answer is Correct. Explanation: HDFS is designed to support very large files.
Any update to either the FsImage or EditLog causes each of the FsImages and EditLogs to get updated synchronously
NameNode can be configured to support maintaining multiple copies of the FsImage and EditLog
None of the Option is Correct

Related Posts:

The ____________ and the EditLog are central data structures of HDFS.

administrator
The ____________ and the EditLog are central data structures of HDFS.
FsImages
Excellent ! Your Answer is Correct. Explanation: A corruption of these files can cause the HDFS instance to be non-functional.
DsImage
FsImages
All Options are Correct

Related Posts:

The ___________ machine is a single point of failure for an HDFS cluster.

administrator
The ___________ machine is a single point of failure for an HDFS cluster.
NameNode
Excellent ! Your Answer is Correct. Explanation: If the NameNode machine fails, manual intervention is necessary. Currently, automatic restart and failover of the NameNode software to another machine is not supported.
ActionNode
DataNode
All Options are Correct

Related Posts:

Point out the correct statement.

administrator
Point out the correct statement.
The HDFS architecture is compatible with data rebalancing schemes
Excellent ! Your Answer is Correct. Explanation: A scheme might automatically move data from one DataNode to another if the free space on a DataNode falls below a certain threshold.
Datablocks support storing a copy of data at a particular instant of time
HDFS currently support snapshots
None of the Option is Correct

Related Posts:

The HDFS client software implements __________ checking on the contents of HDFS files.

administrator
The HDFS client software implements __________ checking on the contents of HDFS files.
checksum
Excellent ! Your Answer is Correct. Explanation: When a client creates an HDFS file, it computes a checksum of each block of the file and stores these checksums in a separate hidden file in the same HDFS namespace.
metastore
parity
None of the Option is Correct

Related Posts:

Page 1 of 4
1 2 3 4