hadoop bigdata questions and answers paper 756 - skillgunNote: Paper virtual numbers may be different from actual paper numbers . In the page numbers section website displaying virtual numbers .
Which of the following maintains the information about the MapReduce Jobs after the Application master terminates.
Job History server.
In Hadoop2.X How many Name nodes are there?
How to switchoff the "Safenode" in HDFS?
hadoop dfsadmin-safemode leave
hadoop fdsadmin-safemode leave
hadoop admin-safemode leave
Syntax to run a MapReduce Program?
hadoop jar file.jar/output_path/input_path
hadoop jar file.jar/input_path/output_path
What does commodity Hardware in hadoop ?
Industry standard hardware.
Low specifications industry grade ware.
Very cheap hardware.
What does "velocity"in bigdata mean?
speed of storing and processing data.
speed of only storing data.
speed of individual machine processors.
speed of input data generation.
Which of the following Batch processing instance is not an example of
processing 10 GB sales data every 6 hours.
web crawling app.
processing flights sensor data.
Trending topic analysis of tweets for last 10 minutes.
slinding window operations fall into the category of
Big Data real time processing.
Big data batch processing.
small batch processing.
HBase is used for
Tool for random and fast read/write operations in hadoop.
Mapreduce alternative in hadoop
both a & b.
Hive is used for
Hadoop query engine.
Map Reduce Wrapper.
Hadoop sql interface.
Which of the following are not true for hadoop?
It's a tool for big data.
It aims for vertical scaling out/in scenarios.
Which of the following is Not a type of metadata in Namenode?
No. of file records.
File acess control information.
List of files.
Block location files.
Which of the following mechanisms is used to create replica in HDFS is
Store and forward protocol.
Name node tries to keep the first copy of data nearest to the client machine.
true if the client machine is the part of the cluster.
true if the client machine is not part of the cluster
Parameters could be passed to pig scripts from.
All the above.
The schema of a relation can be examed through
Data can be supplied to PigUnit tests from
Both a & b.
Which of the following constucts are valid Pigcontrol structures?
Back To Top