最新のHADOOP-PR000007問題集で試験を準備する

Hortonworks HADOOP-PR000007 試験概要:

Hortonworks HADOOP-PR000007 試験シラバストピック:

Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer) 認定 HADOOP-PR000007 試験問題：

1. All keys used for intermediate output from mappers must:

A) Implement WritableComparable.
B) Be a subclass of FileInputFormat.
C) Implement a splittable compression algorithm.
D) Implement a comparator for speedy sorting.
E) Override isSplitable.

2. You want to perform analysis on a large collection of images. You want to store this data in HDFS and
process it with MapReduce but you also want to give your data analysts and data scientists the ability to
process the data directly from HDFS with an interpreted high-level programming language like Python.
Which format should you use to store this data in HDFS?

A) XML
B) JSON
C) HTML
D) SequenceFiles
E) CSV
F) Avro

3. What does the following command do? register '/piggyban):/pig-files.jar';

A) Transforms Pig user-defined functions into a format that Hive can accept
B) Assigns a name to a user-defined function or streaming command
C) Invokes the user-defined functions contained in the jar file
D) Specifies the location of the JAR file containing the user-defined functions

4. In a MapReduce job with 500 map tasks, how many map task attempts will there be?

A) It depends on the number of reduces in the job.
B) Exactly 500.
C) Between 500 and 1000.
D) At most 500.
E) At least 500.

5. Which HDFS command copies an HDFS file named foo to the local filesystem as localFoo?

A) hadoop fs -Is foo
B) hadoop fs -get foo LocalFoo
C) hadoop -cp foo LocalFoo
D) hadoop fs -put foo LocalFoo

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