Question

The default inputformat is __________ which treats each value of input a new value and the associated key is byte offset.

Answer 1

The default input format is text input format.

Text Input Format is one of the file formats of the hood.

The hadoop is the default type of map reduce, which if we do not specify any file format, the recorder-loader will consider file format as a text input format.

The key-value attachment for the text input format file is the key byte offset and as the whole line (input) value.

Ex: -

Suppose the input file contains such a line: -

Hello I'm a student of Data feed

I learned the Hadoop on data feed

Key (byte offset) value

0 Hi I'm a student of data fair .

30 I learn the data on the Hadoop.

Answer 2

Thank you for asking this question. The options for this question are missing, here are the missing options:

a) TextFormat

b) TextInputFormat

c) InputFormat

d) All of the mentioned

The correct answer is Option B)  TextInputFormat

Reason: A RecordReader is little more than an iterator over records, and the map task uses one to generate record key-value pairs.

if there is any confusion please leave a commment below.