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Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer Sample Questions:
1. 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) Secondary NameNode
B) NameNode
C) TaskTracker
D) JobTracker
E) DataNode
2. Examine the following Hive statements:
Assuming the statements above execute successfully, which one of the following statements is true?
A) The contents of File1 are parsed as comma-delimited rows and loaded into /user/joe/x/
B) Hive reformats File1 into a structure that Hive can access and moves into to/user/joe/x/
C) The contents of File1 are parsed as comma-delimited rows and stored in a database
D) The file named File1 is moved to to/user/joe/x/
3. To process input key-value pairs, your mapper needs to lead a 512 MB data file in memory. What is the best way to accomplish this?
A) Serialize the data file, insert in it the JobConf object, and read the data into memory in the configure method of the mapper.
B) Place the data file in the DistributedCache and read the data into memory in the configure method of the mapper.
C) Place the data file in the DataCache and read the data into memory in the configure method of the mapper.
D) Place the data file in the DistributedCache and read the data into memory in the map method of the mapper.
4. Given the following Hive commands:
Which one of the following statements Is true?
A) The file mydata.txt is moved to a subfolder of /apps/hive/warehouse
B) The file mydata.txt does not move from Its current location in HDFS
C) The file mydata.txt is copied to a subfolder of /apps/hive/warehouse
D) The file mydata.txt is copied into Hive's underlying relational database 0.
5. To process input key-value pairs, your mapper needs to lead a 512 MB data file in memory. What is the best way to accomplish this?
A) Serialize the data file, insert in it the JobConf object, and read the data into memory in the configure method of the mapper.
B) Place the data file in the DistributedCache and read the data into memory in the configure method of the mapper.
C) Place the data file in the DataCache and read the data into memory in the configure method of the mapper.
D) Place the data file in the DistributedCache and read the data into memory in the map method of the mapper.
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: D | Question # 3 Answer: C | Question # 4 Answer: C | Question # 5 Answer: C |
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