Hadoop MCQs with answers Page - 5

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📊 Hadoop
Q. . . . . . . . . is used for writing blocks with single replica in memory.
  • (A) Hot
  • (B) Lazy_Persist
  • (C) One_SSD
  • (D) All_SSD
💬 Discuss
✅ Correct Answer: (B) Lazy_Persist
📊 Hadoop
Q. Which of the following class provides access to configuration parameters?
  • (A) Config
  • (B) Configuration
  • (C) OutputConfig
  • (D) None of the mentioned
💬 Discuss
✅ Correct Answer: (B) Configuration
📊 Hadoop
Q. An . . . . . . . . is responsible for creating the input splits, and dividing them into records.
  • (A) TextOutputFormat
  • (B) TextInputFormat
  • (C) OutputInputFormat
  • (D) InputFormat
💬 Discuss
✅ Correct Answer: (D) InputFormat
📊 Hadoop
Q. Administrators typically define parameters as final in . . . . . . . . for values that user applications may not alter.
  • (A) core-default.xml
  • (B) core-site.xml
  • (C) coredefault.xml
  • (D) all of the mentioned
💬 Discuss
✅ Correct Answer: (B) core-site.xml
📊 Hadoop
Q. Point out the correct statement.
  • (A) The minimum split size is usually 1 byte, although some formats have a lower bound on the split size
  • (B) Applications may impose a minimum split size
  • (C) The maximum split size defaults to the maximum value that can be represented by a Java long type
  • (D) All of the mentioned
💬 Discuss
✅ Correct Answer: (A) The minimum split size is usually 1 byte, although some formats have a lower bound on the split size
📊 Hadoop
Q. Point out the correct statement.
  • (A) The reduce input must have the same types as the map output, although the reduce output types may be different again
  • (B) The map input key and value types (K1 and V1) are different from the map output types
  • (C) The partition function operates on the intermediate key
  • (D) All of the mentioned
💬 Discuss
✅ Correct Answer: (D) All of the mentioned
📊 Hadoop
Q. Which of the following method is used to get user-specified job name?
  • (A) getJobName()
  • (B) getJobState()
  • (C) getPriority()
  • (D) all of the mentioned
💬 Discuss
✅ Correct Answer: (A) getJobName()
📊 Hadoop
Q. . . . . . . . . is a variant of SequenceFileInputFormat that converts the sequence file's keys and values to Text objects.
  • (A) SequenceFile
  • (B) SequenceFileAsTextInputFormat
  • (C) SequenceAsTextInputFormat
  • (D) All of the mentioned
💬 Discuss
✅ Correct Answer: (B) SequenceFileAsTextInputFormat
📊 Hadoop
Q. Which of the following command runs ResourceManager admin client?
  • (A) proxyserver
  • (B) run
  • (C) admin
  • (D) rmadmin
💬 Discuss
✅ Correct Answer: (D) rmadmin
📊 Hadoop
Q. Which of the following is used to list out the storage policies?
  • (A) hdfs storagepolicies
  • (B) hdfs storage
  • (C) hd storagepolicies
  • (D) all of the mentioned
💬 Discuss
✅ Correct Answer: (A) hdfs storagepolicies

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