HADOOP-PR000007 無料問題集「Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer)」

（A）Set the number of mappers equal to the number of input files you want to process.

（B）Write a custom MapRunner that iterates over all key-value pairs in the entire file.

（C）Increase the parameter that controls minimum split size in the job configuration.

（D）Write a custom FileInputFormat and override the method isSplitable to always return false.

（A）The input file is split exactly at the line breaks, so each RecordReader will read a series of complete
lines.

（B）Input file splits may cross line breaks. A line that crosses file splits is read by the RecordReaders of
both splits containing the broken line.

（C）Input file splits may cross line breaks. A line that crosses file splits is read by the RecordReader of the
split that contains the beginning of the broken line.

（D）Input file splits may cross line breaks. A line that crosses file splits is read by the RecordReader of the
split that contains the end of the broken line.

（E）Input file splits may cross line breaks. A line that crosses file splits is ignored.

（A）Hive commands cannot reference an HCatalog table

（B）SELECT * FROM x;

（C）SELECT * FROM org.apache.hcatalog.hive.HCatLoader('x');

（D）SELECT x.-FROM org.apache.hcatalog.hive.HCatLoader('x');

（A）Flume

（B）Oozie

（C）Pig

（D）Hive

（E）fuse-dfs

（F）Hue

（G）Sqoop

（A）Read a file /foo/bar

（B）List a directory /foo

（C）Make a directory /foo/bar

（D）Delete a directory /foo/bar

（A）ABC has a schema associated with it

（B）Pig assumes the contents of myfile are comma delimited

（C）The contents of myfile appear on stdout

（D）myfile is read from the user's home directory in HDFS

（A）ApplicationMaster

（B）ResourceManager

（C）NodeManager

（D）JobTracker

（A）combine

（B）init

（C）configure

（D）map

（A）Ingest with Hadoop Streaming

（B）HDFS command

（C）Pig LOAD command

（D）Sqoop import

（E）Ingest with Flume agents

（F）Hive LOAD DATA command

（A）Flume

（B）Hadoop Streaming

（C）Oozie

（D）mapred

（E）Sqoop