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Hortonworks HADOOP-PR000007 시험 개요:

Hortonworks HADOOP-PR000007 시험 요강 주제:

HADOOP-PR000007 시험 자주 묻는 질문 총정리

최신 HDP Certified Developer HADOOP-PR000007 무료샘플문제

문제 #1

Which one of the following files is required in every Oozie Workflow application?

A. Config-default.xml
B. job.properties
C. Oozie.xml
D. Workflow.xml

문제 #2

What is a SequenceFile?

A. A SequenceFile contains a binary encoding of an arbitrary number key-value pairs. Each key must be
the same type. Each value must be same type.
B. A SequenceFile contains a binary encoding of an arbitrary number of WritableComparable objects, in
sorted order.
C. A SequenceFile contains a binary encoding of an arbitrary number of heterogeneous writable objects.
D. A SequenceFile contains a binary encoding of an arbitrary number of homogeneous writable objects.

문제 #3

Given a directory of files with the following structure:
line number, tab character, string:
Example:
1 abialkjfjkaoasdfjksdlkjhqweroij
2 kadfjhuwqounahagtnbvaswslmnbfgy
3 kjfteiomndscxeqalkzhtopedkfsikj
You want to send each line as one record to your Mapper. Which InputFormat should you use to complete
the line: conf.setInputFormat (____.class) ; ?

A. SequenceFileInputFormat
B. BDBInputFormat
C. SequenceFileAsTextInputFormat
D. KeyValueFileInputFormat

문제 #4

Which describes how a client reads a file from HDFS?

A. The client queries all DataNodes in parallel. The DataNode that contains the requested data responds
directly to the client. The client reads the data directly off the DataNode.
B. The client contacts the NameNode for the block location(s). The NameNode contacts the DataNode
that holds the requested data block. Data is transferred from the DataNode to the NameNode, and then
from the NameNode to the client.
C. The client contacts the NameNode for the block location(s). The NameNode then queries the
DataNodes for block locations. The DataNodes respond to the NameNode, and the NameNode redirects
the client to the DataNode that holds the requested data block(s). The client then reads the data directly
off the DataNode.
D. The client queries the NameNode for the block location(s). The NameNode returns the block location(s)
to the client. The client reads the data directory off the DataNode(s).

문제 #5

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 is copied to a subfolder of /apps/hive/warehouse
C. The file mydata.txt is copied into Hive's underlying relational database 0.
D. The file mydata.txt does not move from Its current location in HDFS

질문과 대답: