Hadoop interview questions part 6
Hadoop interview questions part 6
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. The type of __________ strategy Cassandra performs on your data is configurable and can significantly affect read performance.
Correct Answer is : compaction
2. There are _________ types of read requests that a coordinator can send to a replica
Correct Answer is : three
3. _________ can be configured per table for non-QUORUM consistency levels
Correct Answer is : Read repair
4. If the table has been configured with the __________ property, the coordinator node for the read request will retry the request with another replica node .
Correct Answer is : speculative_retry
5. ________ includes a flexible and powerful toolkit for displaying monitoring and analyzing results.
Correct Answer is : Chukwa
6. Point out the correct statement :
Correct Answer is : Chukwa is a Hadoop subproject devoted to bridging that gap between logs processing and Hadoop ecosystem
7. The items stored on _______ are organized in a hierarchy of widget category
Correct Answer is : HICC
8. HICC, the Chukwa visualization interface, requires HBase version :
Correct Answer is : 0.90.4+.
9. Point out the wrong statement :
Correct Answer is : Using Hadoop for MapReduce processing of logs is easy
10. __________ are the Chukwa processes that actually produce data.
Correct Answer is : Agents
11. Chukwa ___________ are responsible for accepting incoming data from Agents, and storing the data.
Correct Answer is : Collectors
12. For enabling streaming data to _________ chukwa collector writer class can be configured in chukwa-collector-conf.xml.
Correct Answer is : HBase
13. By default, collector’s listen on port :
Correct Answer is : 8080
14. _________ class allows other programs to get incoming chunks fed to them over a socket by the collector.
Correct Answer is : SocketTeeWriter
15. __________ runs Demux parsers inside for convert unstructured data to semi-structured data, then load the key value pairs to HBase table.
Correct Answer is : HBaseWriter
16. Point out the correct statement :
Correct Answer is : Chukwa supports two different reliability strategies
17. The __________ streams chunks of data to HDFS, and write data in temp filename with .chukwa suffix.
Correct Answer is : SeqFileWriter
18. Conceptually, each _________ emits a semi-infinite stream of bytes, numbered starting from zero.
Correct Answer is : Adaptor
19. Point out the wrong statement :
Correct Answer is : None of the mentioned
20. The _____________ allows external processes to watch the stream of chunks passing through the collector.
Correct Answer is : SocketTeeWriter
