Free Apache-Hadoop-Developer Hortonworks Updates

Hadoop 2.0 Certification exam for Pig and Hive Developer Questions and Answers

Question 5

You have user profile records in your OLPT database, that you want to join with web logs you have already ingested into the Hadoop file system. How will you obtain these user records?

Options:

HDFS command

Pig LOAD command

Sqoop import

Hive LOAD DATA command

Ingest with Flume agents

Ingest with Hadoop Streaming

Question 6

In Hadoop 2.0, which TWO of the following processes work together to provide automatic failover of the NameNode? Choose 2 answers

Options:

ZKFailoverController

ZooKeeper

QuorumManager

JournalNode

Question 7

All keys used for intermediate output from mappers must:

Options:

Implement a splittable compression algorithm.

Be a subclass of FileInputFormat.

Implement WritableComparable.

Override isSplitable.

Implement a comparator for speedy sorting.

Question 8

You have just executed a MapReduce job. Where is intermediate data written to after being emitted from the Mapper’s map method?

Options:

Intermediate data in streamed across the network from Mapper to the Reduce and is never written to disk.

Into in-memory buffers on the TaskTracker node running the Mapper that spill over and are written into HDFS.

Into in-memory buffers that spill over to the local file system of the TaskTracker node running the Mapper.

Into in-memory buffers that spill over to the local file system (outside HDFS) of the TaskTracker node running the Reducer

Into in-memory buffers on the TaskTracker node running the Reducer that spill over and are written into HDFS.

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Free Apache-Hadoop-Developer Hortonworks Updates

Hadoop 2.0 Certification exam for Pig and Hive Developer Questions and Answers

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