Hadoop MCQs with answers Page - 8

Dear candidates you will find MCQ questions of Hadoop here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Share your questions by clicking Add Question

R

Ritu Singhal • 4.36K Points
Extraordinary

Q. . . . . . . . . is an input format for reading data from a relational database, using JDBC.

  • (A) DBInput
  • (B) DBInputFormat
  • (C) DBInpFormat
  • (D) All of the mentioned

B

Bhagwan Das • 4.44K Points
Extraordinary

Q. The key, a . . . . . . . . is the byte offset within the file of the beginning of the line.

  • (A) LongReadable
  • (B) LongWritable
  • (C) ShortReadable
  • (D) All of the mentioned

R

Ritu Nagar • 4.39K Points
Extraordinary

Q. The Job makes a copy of the . . . . . . . . so that any necessary internal modifications do not reflect on the incoming parameter.

  • (A) Component
  • (B) Configuration
  • (C) Collector
  • (D) None of the mentioned

P

Praveen Singh • 36.71K Points
Coach

Q. Point out the correct statement.

  • (A) Each queue has strict ACLs which controls which users can submit applications to individual queues
  • (B) Hierarchy of queues is supported to ensure resources are shared among the sub-queues of an organization
  • (C) Queues are allocated a fraction of the capacity of the grid in the sense that a certain capacity of resources will be at their disposal
  • (D) All of the mentioned

B

Bhagwan Das • 4.44K Points
Extraordinary

Q. Which of the following writes MapFiles as output?

  • (A) DBInpFormat
  • (B) MapFileOutputFormat
  • (C) SequenceFileAsBinaryOutputFormat
  • (D) None of the mentioned

N

Neelam Mittal • 4.57K Points
Extraordinary

Q. The updated queue configuration should be a valid one i.e. queue-capacity at each level should be equal to . . . . . . . .

  • (A) 50%
  • (B) 75%
  • (C) 100%
  • (D) 0%

V

Vijay Sangwan • 28.62K Points
Instructor II

Q. The split size is normally the size of a . . . . . . . . block, which is appropriate for most applications.

  • (A) Generic
  • (B) Task
  • (C) Library
  • (D) HDFS

S

Sandhya Thakur • 4.08K Points
Extraordinary

Q. Point out the wrong statement.

  • (A) If V2 and V3 are the same, you only need to use setOutputValueClass()
  • (B) The overall effect of Streaming job is to perform a sort of the input
  • (C) A Streaming application can control the separator that is used when a key-value pair is turned into a series of bytes and sent to the map or reduce process over standard input
  • (D) None of the mentioned

P

Praveen Singh • 36.71K Points
Coach

Q. Point out the wrong statement.

  • (A) Hadoop sequence file format stores sequences of binary key-value pairs
  • (B) SequenceFileAsBinaryInputFormat is a variant of SequenceFileInputFormat that retrieves the sequence file's keys and values as opaque binary objects
  • (C) SequenceFileAsTextInputFormat is a variant of SequenceFileInputFormat that retrieves the sequence file's keys and values as opaque binary objects.
  • (D) None of the mentioned

V

Vijay Sangwan • 28.62K Points
Instructor II

Q. Which of the following method add a path or paths to the list of inputs?

  • (A) setInputPaths()
  • (B) addInputPath()
  • (C) setInput()
  • (D) none of the mentioned

Loding content...

Download our easy to use, user friendly Android App from Play Store. And learn MCQs with one click.

Image

Login

Forgot username? click here

Forgot password? Click here

Don't have account? Register here.