Data Processing with Pig MCQ question and answer with solution

51.
. . . . . . . . abstract class has three main methods for loading data and for most use cases it would suffice to extend it.

A. Load

B. LoadFunc

C. FuncLoad

D. None of the mentioned

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52.
Point out the correct statement.

A. LoadMeta has methods to convert byte arrays to specific types

B. The Pig load/store API is aligned with Hadoop InputFormat class only

C. LoadPush has methods to push operations from Pig runtime into loader implementations

D. All of the mentioned

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53.
Which of the following has methods to deal with metadata?

A. LoadPushDown

B. LoadMetadata

C. LoadCaster

D. All of the mentioned

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54.
. . . . . . . . method will be called by Pig both in the front end and back end to pass a unique signature to the Loader.

A. relativeToAbsolutePath()

B. setUdfContextSignature()

C. getCacheFiles()

D. getShipFiles()

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55.
Point out the wrong statement.

A. The load/store UDFs control how data goes into Pig and comes out of Pig.

B. LoadCaster has methods to convert byte arrays to specific types.

C. The meaning of getNext() has changed and is called by Pig runtime to get the last tuple in the data

D. None of the mentioned

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56.
. . . . . . . . return a list of hdfs files to ship to distributed cache.

A. relativeToAbsolutePath()

B. setUdfContextSignature()

C. getCacheFiles()

D. getShipFiles()

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57.
The loader should use . . . . . . . . method to communicate the load information to the underlying InputFormat.

A. relativeToAbsolutePath()

B. setUdfContextSignature()

C. getCacheFiles()

D. setLocation()

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58.
. . . . . . . . method enables the RecordReader associated with the InputFormat provided by the LoadFunc is passed to the LoadFunc.

A. getNext()

B. relativeToAbsolutePath()

C. prepareToRead()

D. all of the mentioned

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59.
. . . . . . . . method tells LoadFunc which fields are required in the Pig script.

A. pushProjection()

B. relativeToAbsolutePath()

C. prepareToRead()

D. none of the mentioned

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60.
A loader implementation should implement . . . . . . . . if casts (implicit or explicit) from DataByteArray fields to other types need to be supported.

A. LoadPushDown

B. LoadMetadata

C. LoadCaster

D. All of the mentioned

Answer & Solution Discuss in Board Save for Later

Data Processing with Pig MCQ question and answer with solution | Hadoop MCQs

51. . . . . . . . . abstract class has three main methods for loading data and for most use cases it would suffice to extend it.

Answer & Solution

52. Point out the correct statement.

Answer & Solution

53. Which of the following has methods to deal with metadata?

Answer & Solution

54. . . . . . . . . method will be called by Pig both in the front end and back end to pass a unique signature to the Loader.

Answer & Solution

55. Point out the wrong statement.

Answer & Solution

56. . . . . . . . . return a list of hdfs files to ship to distributed cache.

Answer & Solution

57. The loader should use . . . . . . . . method to communicate the load information to the underlying InputFormat.

Answer & Solution

58. . . . . . . . . method enables the RecordReader associated with the InputFormat provided by the LoadFunc is passed to the LoadFunc.

Answer & Solution

59. . . . . . . . . method tells LoadFunc which fields are required in the Pig script.

Answer & Solution

60. A loader implementation should implement . . . . . . . . if casts (implicit or explicit) from DataByteArray fields to other types need to be supported.

Answer & Solution

51.
. . . . . . . . abstract class has three main methods for loading data and for most use cases it would suffice to extend it.

52.
Point out the correct statement.

53.
Which of the following has methods to deal with metadata?

54.
. . . . . . . . method will be called by Pig both in the front end and back end to pass a unique signature to the Loader.

55.
Point out the wrong statement.

56.
. . . . . . . . return a list of hdfs files to ship to distributed cache.

57.
The loader should use . . . . . . . . method to communicate the load information to the underlying InputFormat.

58.
. . . . . . . . method enables the RecordReader associated with the InputFormat provided by the LoadFunc is passed to the LoadFunc.

59.
. . . . . . . . method tells LoadFunc which fields are required in the Pig script.

60.
A loader implementation should implement . . . . . . . . if casts (implicit or explicit) from DataByteArray fields to other types need to be supported.