最新のApache-Hadoop-Developer問題集で試験を準備する

Hortonworks Apache-Hadoop-Developer 試験概要:

Hortonworks Apache-Hadoop-Developer 試験シラバストピック:

Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer 認定 Apache-Hadoop-Developer 試験問題：

問題 #1

You've written a MapReduce job that will process 500 million input records and generated 500 million key-value pairs. The data is not uniformly distributed. Your MapReduce job will create a significant amount of intermediate data that it needs to transfer between mappers and reduces which is a potential bottleneck. A custom implementation of which interface is most likely to reduce the amount of intermediate data transferred across the network?

A. WritableComparable
B. Writable
C. Partitioner
D. InputFormat
E. OutputFormat
F. Combiner

問題 #2

Indentify the utility that allows you to create and run MapReduce jobs with any executable
or script as the mapper and/or the reducer?

A. Flume
B. Oozie
C. Hadoop Streaming
D. mapred
E. Sqoop

問題 #3

Which Hadoop component is responsible for managing the distributed file system metadata?

A. Metanode
B. NameNode
C. DataNode
D. NameSpaceManager

問題 #4

Consider the following two relations, A and B.

What is the output of the following Pig commands?
X = GROUP A BY S1; DUMP X;

A. Option A
B. Option C
C. Option D
D. Option B

問題 #5

Which HDFS command uploads a local file X into an existing HDFS directory Y?

A. hadoop fs-put X Y
B. hadoop scp X Y
C. hadoop fs -localPut X Y
D. hadoop fs -get X Y

解説：