Question 31 : Gzip (short for GNU zip) generates compressed files that have a _________ extension.
1. .gzip
2. .gz
3. .gzp
4. .g
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Question 32 : Which of the following is the slowest compression technique ?
1. LZO
2. Bzip2
3. Gzip
4. All of the mentioned
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Question 33 : Which of the following supports splittable compression ?
1. LZO
2. Bzip2
3. Gzip
4. All of the mentioned
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Question 34 : Which of the following compression is similar to Snappy compression ?
1. LZO
2. Bzip2
3. Gzip
4. All of the mentioned
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Question 35 : Point out the correct statement :
1. Snappy is licensed under the GNU Public License (GPL)
2. BgCIK needs to create an index when it compresses a file
3. The Snappy codec is integrated into Hadoop Common, a set of common utilities that supports other Hadoop subprojects
4. None of the mentioned
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Question 36 : The _________ codec from Google provides modest compression ratios.
1. Snapcheck
2. Snappy
3. FileCompress
4. None of the mentioned
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Question 37 : ____________ data file takes is based on avro serialization framework which was primarily created for hadoop.
1. Oozie
2. Avro
3. cTakes
4. Lucene
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Question 38 : The _________ as just the value field append(value) and the key is a LongWritable that contains the record number, count + 1.
1. SetFile
2. ArrayFile
3. BloomMapFile
4. None of the mentioned
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Question 39 : Which of the following format is more compression-aggressive ?
1. Partition Compressed
2. Record Compressed
3. Block-Compressed
4. Uncompressed
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Question 40 : Point out the wrong statement :
1. The data file contains all the key, value records but key N + 1 must be greater than or equal to the key N
2. Sequence file is a kind of hadoop file based data structure
3. Map file type is splittable as it contains a sync point after several records
4. None of the mentioned
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