- Interview Questions and Answers for 'Map reduce' | Search Java Interview Question

- Interview Questions and Answers for 'Map reduce' - 5 question(s) found - Order By Newest

Q1. Which of the following is a valid flow in Hadoop ?

a. Input -> Reducer -> Mapper -> Combiner -> -> Output
b. Input -> Mapper -> Reducer -> Combiner -> Output
c. Input -> Mapper -> Combiner -> Reducer -> Output
d. Input -> Reducer -> Combiner -> Mapper -> Output

^Anonymous

Ans. Input -> Mapper -> Combiner -> Reducer -> Output

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Q2. MapReduce was devised by ...

a. Apple
b. Google
c. Microsoft
d. Samsung

^Anonymous

Ans. Google

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Q3. Which of the following is not a phase of Reducer ?

a. Map
b. Reduce
c. Shuffle
d. Sort

^Anonymous

Ans. Map

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Q4. What is the input to the Reduce function ?

a. One Key and One Value
b. Multiple Keys and Multiple associated Values
c. Multiple Keys and One associated values with each
d. One key and associated values.

^Anonymous

Ans. One key and associated values.

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Q5. Which of the following is the implementation language for Map Reduce Framework ?

a. Big Data
b. Hadoop
c. Java
d. C++

^Anonymous

Ans. Java

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