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4 years ago

This part of the hadoop process groups and sorts data by commonalities.

Computers and Technology

1 answer:

Alinara [238K]4 years ago

3 0

Answer:

D. Map

Explanation:

Hadoop MapReduce is used to sort data and group the data. The big data is handlled in two phases in the Mapreduce. they are known as Map Phase and Reduce Phase.

In this framework keys generated by the mappers are sorted automatically.

map(key1, value1) → list(key2, value2)

Here the map function receives the input as key value pairs and outputs any numbers of these pairs.

reduce(key2, list(value2)) → list(key3, value3)

reduce function receives input as key value pairs and outputs as key value pairs as well.

map reduce framework will group all the values associated with output and reducer will determine the final output. Comparators are used to control the grouping.

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For the following 4-bit operation, assuming these register are ONLY 4-bits in size, which status flags are on after performing t

m_a_m_a [10]

Answer:

All flags are On ( c, z , N )

Explanation:

Given data:

4-bit operation

Assuming 2's complement representation

<u>Determine status flags that are on after performing </u> 1010+0110

1 1

1 0 1 0

0 1 1 0

1 0 0 0 0

we will carry bit = 1 over

hence C = 1

given that: carry in = carry out there will be zero ( 0 ) overflow

hence V = 0

also Z = 1

But the most significant bit is N = 1

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3 years ago

The true or false questions.

DIA [1.3K]

Answer:

true

Explanation:

The command:

find -empty -type f -exec rm { } \;

carries out the following steps.

1) Finds all the empty files in the current directory and its subdirectories.

2) For each of the identified files, it executes the command specified as the parameter to exec option,namely, rm <filename>.

So effectively it removes all empty files in the directory tree starting at the current directory.

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4 years ago

Programmers use an Integrated Development Environment (IDE) to write software programs, because:

Natali [406]

Answer:

A) It simplifies the process by providing a single user interface for multiple software tools.

Explanation:

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3 years ago

Which of the following formats can algorithms NOT be written in:

Zina [86]

The answer is Flow chart

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4 years ago

_______________creates new markets separate to the mainstream; markets that are unknowable at the time of the technology's conce

elena-s [515]

Answer: a)Disruptive innovation

Explanation: Disruptive innovation is the innovation technique indulges in market through new market strategy and value network. This techniques damages the existing market market and its values .The displacement of the current product extincts from the market through this technique.

Other options are incorrect because paradigm shift is influence losing in the market and sustaining innovation is used for the improving the product's marketing and value .Thus, the correct option is option(a).

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4 years ago