Hadoop interview questions part 33
Hadoop interview questions part 33
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. During merging, __________ now always checks the incoming segments for corruption before merging.
Correct Answer is : IndexWriter
2. Heap usage during IndexWriter merging is also much lower with the new :
Correct Answer is : Lucene50Codec
3. Point out the wrong statement :
Correct Answer is : ConcurScheduler detects whether the index is on SSD or not
4. PostingsFormat now uses a __________ API when writing postings, just like doc values.
Correct Answer is : pull
5. New ____________ type enables Indexing and searching of date ranges, particularly multi-valued ones.
Correct Answer is : DateRangeField
6. SolrJ now has first class support for __________ API
Correct Answer is : Collections
7. ____________ Collection API allows for even distribution of custom replica properties.
Correct Answer is : BALANCESHARDUNIQUE
8. ____________ can be used to generate stats over the results of arbitrary numeric functions.
Correct Answer is : stats.field
9. Mahout provides ____________ libraries for common and primitive Java collections.
Correct Answer is : Java
10. Point out the correct statement :
Correct Answer is : None of the mentioned
11. _________ does not restrict contributions to Hadoop based implementations.
Correct Answer is : Mahout
12. Mahout provides an implementation of a ______________ identification algorithm which scores collocations using log-likelihood ratio.
Correct Answer is : collocation
13. Point out the wrong statement :
Correct Answer is : None of the mentioned
14. The tokens are passed through a Lucene ____________ to produce NGrams of the desired length.
Correct Answer is : ShingleFilter
15. The _________ collocation identifier is integrated into the process that is used to create vectors from sequence files of text keys and values.
Correct Answer is : llr
16. ____________ generates NGrams and counts frequencies for ngrams, head and tail subgrams.
Correct Answer is : CollocDriver
17. A key of type ___________ is generated which is used later to join ngrams with their heads and tails in the reducer phase.
Correct Answer is : GramKey
18. ________ phase merges the counts for unique ngrams or ngram fragments across multiple documents.
Correct Answer is : CollocCombiner
19. _______ can change the maximum number of cells of a column family.
Correct Answer is : alter
20. Point out the correct statement :
Correct Answer is : You can add a column family to a table using the method addColumn()
