Hadoop interview questions part 12
Hadoop interview questions part 12
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. __________ is a generalization of the facility provided by the MapReduce framework to collect data output by the Mapper or the Reducer
Correct Answer is : OutputCollector
2. _________ is the primary interface for a user to describe a MapReduce job to the Hadoop framework for execution.
Correct Answer is : JobConf
3. ________ systems are scale-out file-based (HDD) systems moving to more uses of memory in the nodes.
Correct Answer is : NoSQL
4. Point out the correct statement :
Correct Answer is : Hadoop is ideal for the analytical, post-operational, data-warehouse-ish type of workload
5. Hadoop data is not sequenced and is in 64MB to 256MB block sizes of delimited record values with schema applied on read based on:
Correct Answer is : HCatalog
6. __________ are highly resilient and eliminate the single-point-of-failure risk with traditional Hadoop deployments
Correct Answer is : Isilon solutions
7. Point out the wrong statement :
Correct Answer is : NoSQL systems do provide high latency access and accommodate less concurrent users
8. HDFS and NoSQL file systems focus almost exclusively on adding nodes to :
Correct Answer is : Scale out
9. Which is the most popular NoSQL database for scalable big data store with Hadoop ?
Correct Answer is : Hbase
10. The ___________ can also be used to distribute both jars and native libraries for use in the map and/or reduce tasks.
Correct Answer is : DistributedCache
11. HBase provides ___________ like capabilities on top of Hadoop and HDFS.
Correct Answer is : Bigtable
12. _______ refers to incremental costs with no major impact on solution design, performance and complexity.
Correct Answer is : Scale-up
13. Which of the following class provides access to configuration parameters ?
Correct Answer is : Configuration
14. Point out the correct statement :
Correct Answer is : Configuration parameters may be declared static
15. ___________ gives site-specific configuration for a given hadoop installation.
Correct Answer is : core-site.xml
16. Administrators typically define parameters as final in __________ for values that user applications may not alter.
Correct Answer is : core-site.xml
17. Point out the wrong statement :
Correct Answer is : configuration parameters cannot be declared final
18. _________ method clears all keys from the configuration.
Correct Answer is : clear
19. ________ method adds the deprecated key to the global deprecation map.
Correct Answer is : addDeprecation
20. ________ checks whether the given key is deprecated.
Correct Answer is : isDeprecated
