Hadoop MCQs with answers Page - 2

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P

Pooja • 4.41K Points
Extraordinary 

Q. . . . . . . . . will clear the RMStateStore and is useful if past applications are no longer needed.

  • (A) -format-state
  • (B) -form-state-store
  • (C) -format-state-store
  • (D) none of the mentioned

P

Praveen Singh • 36.81K Points
Coach 

Q. . . . . . . . . is used for storing one of the replicas in SSD.

  • (A) Hot
  • (B) Lazy_Persist
  • (C) One_SSD
  • (D) All_SSD

R

Ranjeet • 34.60K Points
Instructor I 

Q. Point out the correct statement.

  • (A) Mover is not similar to Balancer
  • (B) hdfs dfsadmin -setStoragePolicy <path> <policyName> puts a storage policy to a file or a directory.
  • (C) addCacheArchive add archives to be localized
  • (D) none of the mentioned

P

Priyanka Tomar • 35.28K Points
Coach 

Q. . . . . . . . . class allows you to specify the InputFormat and Mapper to use on a per-path basis.

  • (A) MultipleOutputs
  • (B) MultipleInputs
  • (C) SingleInputs
  • (D) None of the mentioned

S

Sandhya Thakur • 4.08K Points
Extraordinary 

Q. The . . . . . . . . is a framework-specific entity that negotiates resources from the ResourceManager.

  • (A) NodeManager
  • (B) ResourceManager
  • (C) ApplicationMaster
  • (D) All of the mentioned

S

Sandhya Thakur • 4.08K Points
Extraordinary 

Q. . . . . . . . . method clears all keys from the configuration.

  • (A) clear
  • (B) addResource
  • (C) getClass
  • (D) none of the mentioned

G

Gopal Sharma • 38.32K Points
Coach 

Q. The . . . . . . . . is responsible for allocating resources to the various running applications subject to familiar constraints of capacities, queues etc.

  • (A) Manager
  • (B) Master
  • (C) Scheduler
  • (D) None of the mentioned

N

Neelam Mittal • 4.57K Points
Extraordinary 

Q. Point out the wrong statement.

  • (A) A Storage policy consists of the Policy ID
  • (B) The storage policy can be specified using the "dfsadmin -setStoragePolicy" command
  • (C) dfs.storage.policy.enabled is used for enabling/disabling the storage policy feature
  • (D) None of the mentioned

P

Priyanka Tomar • 35.28K Points
Coach 

Q. An input . . . . . . . . is a chunk of the input that is processed by a single map.

  • (A) textformat
  • (B) split
  • (C) datanode
  • (D) all of the mentioned

P

Priyanka Tomar • 35.28K Points
Coach 

Q. . . . . . . . . is useful for iterating the properties when all deprecated properties for currently set properties need to be present.

  • (A) addResource
  • (B) setDeprecatedProperties
  • (C) addDefaultResource
  • (D) none of the mentioned

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