1.What does SQOOP stand for?
答：SQL to Hadoop
2.What is part of the basic Hadoop Stack 'Zoo'?
答：pig 、 Elephant、 Hive
3.What is considered to be part of the Apache Basic Hadoop Modules?
答：HDFS、 Yarn、 MapReduce、（Hadoop Common）
4.What are the two major components of the MapReduce layer?
答：TaskManager 、 JobTracker
5.what does HDFS stand for?
答：Hadoop Distributed File System
6.what are the two majority types of nodes in HDFS?
答：NameNode、 DataNode
7.What is Yarn used as an alternative to in Hadoop 2.0 and higher versions of Hadoop?
答：MapReduce
8.Could you run an existing MapReduce application using Yarm?
答：yes
9.What are the two basic layers comprising the Hadoop Architecture?
答：MapReduce and HDFS
10.What are Hadoop advantages over a traditional platform?
答：Scalability 、 Reliability 、 Flexibility 、Cost
