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. Which one of the following statements is true about a Hive-managed table?

A) Records can only be added to the table using the Hive INSERT command.
B) Hive dynamically defines the schema of the table based on the format of the underlying data.
C) When the table is dropped, the underlying folder in HDFS is deleted.
D) Hive dynamically defines the schema of the table based on the FROM clause of a SELECT query.

2. Which one of the following statements describes the relationship between the ResourceManager and the
ApplicationMaster?

A) The ApplicationMaster requests resources from the ResourceManager
B) The ApplicationMaster starts an instance of the ResourceManager within each Container
C) The ResourceManager monitors and restarts any failed Containers of the ApplicationMaster
D) The ApplicationMaster starts a single instance of the ResourceManager

3. What is the disadvantage of using multiple reducers with the default HashPartitioner and distributing your
workload across you cluster?

A) There are no concerns with this approach. It is always advisable to use multiple reduces.
B) You will longer be able to take advantage of a Combiner.
C) By using multiple reducers with the default HashPartitioner, output files may not be in globally sorted
order.
D) You will not be able to compress the intermediate data.

4. Which one of the following classes would a Pig command use to store data in a table defined in
HCatalog?

A) org.apache.hcatalog.pig.HCatStorer
B) No special class is needed for a Pig script to store data in an HCatalog table
C) org.apache.hcatalog.pig.HCatOutputFormat
D) Pig scripts cannot use an HCatalog table

5. 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

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