Hadoop interview questions part 49
Hadoop interview questions part 49
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Total Questions: 20
1. The ________ master will register its own address in this znode at startup, making this znode the source of truth for identifying which server is the Master.
Correct Answer is : active
2. ___________ is used to decommission more than one RegionServer at a time by creating sub-znodes.
Correct Answer is : /hbase/draining
3. The ______ znode is used for synchronizing the changes made to the _acl_ table by the grant/revoke commands.
Correct Answer is : acl
4. Which of the following project is interface definition language for hadoop ?
Correct Answer is : Thrift
5. Point out the correct statement :
Correct Answer is : All of the mentioned
6. __________ is used as a remote procedure call (RPC) framework for facebook.
Correct Answer is : Thrift
7. Which of the following is a straightforward binary format ?
Correct Answer is : TBinaryProtocol
8. Point out the wrong statement :
Correct Answer is : None of the mentioned
9. Which of the following is a more compact binary format ?
Correct Answer is : TCompactProtocol
10. Which of the following format is similar to TCompactProtocol ?
Correct Answer is : TDenseProtocol
11. ________ is a write-only protocol that cannot be parsed by Thrift.
Correct Answer is : TSimpleJSONProtocol
12. Which of the following Uses JSON for encoding of data ?
Correct Answer is : None of the mentioned
13. _____________ is a human-readable text format to aid in debugging.
Correct Answer is : TDebugProtocol
14. _______ transport is required when using a non-blocking server.
Correct Answer is : TFramedTransport
15. Point out the correct statement :
Correct Answer is : Thrift is a lean and clean library
16. __________ uses memory for I/O in Thrift.
Correct Answer is : TMemoryTransport
17. ________ uses blocking socket I/O for transport.
Correct Answer is : TSocket
18. Point out the wrong statement :
Correct Answer is : None of the mentioned
19. Which of the following is a multi-threaded server using non-blocking I/O ?
Correct Answer is : TNonblockingServer
20. __________ is a single-threaded server using standard blocking I/O
Correct Answer is : TSimpleServer
