Advanced MapReduce Concepts MCQ question and answer with solution

1.
Which of the following is the only way of running mappers?

A. MapReducer

B. MapRunner

C. MapRed

D. All of the mentioned

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2.
. . . . . . . . method adds the deprecated key to the global deprecation map.

A. addDeprecits

B. addDeprecation

C. keyDeprecation

D. none of the mentioned

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3.
reduceProgress() gets the progress of the job's reduce-tasks, as a float between . . . . . . . .

A. 0.0-1.0

B. 1.0-2.0

C. 2.0-3.0

D. None of the mentioned

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4.
Which of the following is only for storage with limited compute?

A. Hot

B. Cold

C. Warm

D. All_SSD

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5.
The CapacityScheduler has a predefined queue called . . . . . . . .

A. domain

B. root

C. rear

D. all of the mentioned

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6.
YARN's dynamic allocation of cluster resources improves utilization over more static . . . . . . . . rules used in early versions of Hadoop.

A. Hive

B. MapReduce

C. Imphala

D. All of the mentioned

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7.
Point out the wrong statement.

A. Data transfer protocol of DataNode does not use the RPC framework of Hadoop

B. Apache Oozie which access the services of Hadoop on behalf of end users need to be able to impersonate end users

C. DataNode must authenticate itself by using privileged ports which are specified by dfs.datanode.address and dfs.datanode.http.address

D. None of the mentioned

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8.
. . . . . . . . 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

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9.
. . . . . . . . is used for storing one of the replicas in SSD.

A. Hot

B. Lazy_Persist

C. One_SSD

D. All_SSD

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10.
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

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Advanced MapReduce Concepts MCQ question and answer with solution | Hadoop MCQs

1. Which of the following is the only way of running mappers?

Answer & Solution

2. . . . . . . . . method adds the deprecated key to the global deprecation map.

Answer & Solution

3. reduceProgress() gets the progress of the job's reduce-tasks, as a float between . . . . . . . .

Answer & Solution

4. Which of the following is only for storage with limited compute?

Answer & Solution

5. The CapacityScheduler has a predefined queue called . . . . . . . .

Answer & Solution

6. YARN's dynamic allocation of cluster resources improves utilization over more static . . . . . . . . rules used in early versions of Hadoop.

Answer & Solution

7. Point out the wrong statement.

Answer & Solution

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

Answer & Solution

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

Answer & Solution

10. Point out the correct statement.

Answer & Solution

Read More Section(Advanced MapReduce Concepts)

1.
Which of the following is the only way of running mappers?

2.
. . . . . . . . method adds the deprecated key to the global deprecation map.

3.
reduceProgress() gets the progress of the job's reduce-tasks, as a float between . . . . . . . .

4.
Which of the following is only for storage with limited compute?

5.
The CapacityScheduler has a predefined queue called . . . . . . . .

6.
YARN's dynamic allocation of cluster resources improves utilization over more static . . . . . . . . rules used in early versions of Hadoop.

7.
Point out the wrong statement.

8.
. . . . . . . . will clear the RMStateStore and is useful if past applications are no longer needed.

9.
. . . . . . . . is used for storing one of the replicas in SSD.

10.
Point out the correct statement.