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

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

A) JournalNode
B) QuorumManager
C) ZKFailoverController
D) ZooKeeper

2. Which two of the following are true about this trivial Pig program' (choose Two)

A) myfile is read from the user's home directory in HDFS
B) ABC has a schema associated with it
C) Pig assumes the contents of myfile are comma delimited
D) The contents of myfile appear on stdout

3. Your client application submits a MapReduce job to your Hadoop cluster. Identify the Hadoop daemon on which the Hadoop framework will look for an available slot schedule a MapReduce operation.

A) JobTracker
B) TaskTracker
C) NameNode
D) DataNode
E) Secondary NameNode

4. Given the following Hive command:
INSERT OVERWRITE TABLE mytable SELECT * FROM myothertable;
Which one of the following statements is true?

A) A new table named mytable is created, and the contents of myothertable are copied into mytable
B) Any existing data in mytable will be overwritten
C) The statement is not a valid Hive command
D) The contents of myothertable are appended to mytable

5. Given the following Pig command:
logevents = LOAD 'input/my.log' AS (date:chararray, levehstring, code:int, message:string);
Which one of the following statements is true?

A) The logevents relation represents the data from the my.log file, using a tab as the parsing delimiter
B) The statement is not a valid Pig command
C) The logevents relation represents the data from the my.log file, using a comma as the parsing delimiter
D) The first field of logevents must be a properly-formatted date string or table return an error

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