Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer) : HADOOP-PR000007

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Hortonworks HADOOP-PR000007 考試大綱主題:

最新的 HDP Certified Developer HADOOP-PR000007 免費考試真題：

1. What does the following WebHDFS command do?
Curl -1 -L "http://host:port/webhdfs/v1/foo/bar?op=OPEN"

A) List a directory /foo
B) Make a directory /foo/bar
C) Delete a directory /foo/bar
D) Read a file /foo/bar

2. Assuming the following Hive query executes successfully:

Which one of the following statements describes the result set?

A) A bigram of the top 80 sentences that contain the substring "you are" in the lines column of the input
data A1 table.
B) An 80-value ngram of sentences that contain the words "you" or "are" in the lines column of the
inputdata table.
C) A frequency distribution of the top 80 words that follow the subsequence "you are" in the lines column
of the inputdata table.
D) A trigram of the top 80 sentences that contain "you are" followed by a null space in the lines column of
the inputdata table.

3. You need to run the same job many times with minor variations. Rather than hardcoding all job
configuration options in your drive code, you've decided to have your Driver subclass
org.apache.hadoop.conf.Configured and implement the org.apache.hadoop.util.Tool interface.
Indentify which invocation correctly passes.mapred.job.name with a value of Example to Hadoop?

A) hadoop setproperty mapred.job.name=Example MyDriver input output
B) hadoop "mapred.job.name=Example" MyDriver input output
C) hadoop MyDriver mapred.job.name=Example input output
D) hadoop setproperty ("mapred.job.name=Example") MyDriver input output
E) hadoop MyDrive -D mapred.job.name=Example input output

4. You have written a Mapper which invokes the following five calls to the OutputColletor.collect method:
output.collect (new Text ("Apple"), new Text ("Red") ) ;
output.collect (new Text ("Banana"), new Text ("Yellow") ) ;
output.collect (new Text ("Apple"), new Text ("Yellow") ) ;
output.collect (new Text ("Cherry"), new Text ("Red") ) ;
output.collect (new Text ("Apple"), new Text ("Green") ) ;
How many times will the Reducer's reduce method be invoked?

A) 5
B) 1
C) 3
D) 0
E) 6

5. Which of the following tool was designed to import data from a relational database into HDFS?

A) Ambari
B) Sqoop
C) Flume
D) HCatalog

問題與答案：