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Certified Hadoop and Mapreduce Professional Sample Questions

Sample Questions


1. The size of block in HDFS is

A. 512 bytes

B. 64 MB

C. 1024 KB

D. None of the above

2. The switch given to “hadoop fs” command for detailed help is

A. -show

B. -help

C. -?

D. None of the above

3. RPC means

A. Remote processing call

B. Remote process call

C. Remote procedure call

D. None of the above

4. Which method of the FileSystem object is used for reading a file in HDFS

A. open()

B. access()

C. select()

D. None of the above

5. How many states does Writable interface defines

A. Two

B. Four

C. Three

D. None of the above

Answers: 1 (B), 2 (B), 3 (C), 4 (A), 5 (A)

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