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

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

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Q2. MapReduce was devised by ...

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

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

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.

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++

Ans. Java

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