Hadoop interview questions part 29
Hadoop interview questions part 29
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. ClobRef is a wrapper that holds a CLOB either directly, or a reference to a file that holds the ______ data.
Correct Answer is : CLOB
2. __________ encapsulates a set of delimiters used to encode a record.
Correct Answer is : DelimiterSet
3. Point out the wrong statement :
Correct Answer is : None of the mentioned
4. _________ supports null values for all types.
Correct Answer is : JdbcWritableBridge
5. Which of the following is a singleton instance class ?
Correct Answer is : LargeObjectLoader
6. Which of the following class is used for general processing of error ?
Correct Answer is : ProcessingException
7. Records are terminated by a __________ character.
Correct Answer is : RECORD_DELIMITER
8. .The fields parsed by ____________ are backed by an internal buffer.
Correct Answer is : RecordParser
9. ZooKeeper itself is intended to be replicated over a sets of hosts called :
Correct Answer is : ensemble
10. Point out the correct statement :
Correct Answer is : The ZooKeeper implementation puts a premium on high performance, highly available, strictly ordered access
11. Which of the guarantee is provided by Zookeeper ?
Correct Answer is : Reliability
12. ZooKeeper is especially fast in ___________ workloads
Correct Answer is : read-dominant
13. Point out the wrong statement :
Correct Answer is : ZooKeeper provides superior reliability through redundant services
14. When a _______ is triggered the client receives a packet saying that the znode has changed.
Correct Answer is : watch
15. The underlying client-server protocol has changed in version _______ of ZooKeeper.
Correct Answer is : 3.0.0
16. The java package structure has changed from com.yahoo.zookeeper* to :
Correct Answer is : org.apache.zookeeper
17. A number of constants used in the client ZooKeeper API were renamed in order to reduce ________ collision
Correct Answer is : namespace
18. ZooKeeper allows distributed processes to coordinate with each other through registers, known as :
Correct Answer is : znodes
19. In order to read any file in HDFS, instance of __________ is required.
Correct Answer is : filesystem
20. Point out the correct statement :
Correct Answer is : All of the mentioned
