【单选题】听力原文:W:Well,if you are seriously considering buying a car,I'm trying to get rid of mine.All it needs is some new paint. M:Thanks.But most used cars end up being more trouble than they are worth. Q:Wha...
A.
Look for a less expensive car.
C.
Help the woman paint her car.
D.
Buy a car from the woman.
【单选题】下列关于合并小文件说法正确的是?()
C.
通过合并Map和Reduce的结果文件来消除影响
【单选题】听力原文:W: Hi there. I was wondering if you could help me. I'm trying to get to Marble Gar dens. Do you know which bus I should take? M: Yes, of course. You should take bus 123 and change to bus 112 at H...
【单选题】关于Map以下说法正确的是?
A.
Map的输入是完整文件,输出是文件分片split
B.
Map完成之后直接进入Reduce,没有其他中间过程
【判断题】改变挡土墙的胸坡和背坡坡度可改善其抗滑稳定性。()
【单选题】若用万用表测二极管的正、反向电阻的方法来判断二极管的好坏,好的管子应为 。
【单选题】“人有悲欢离合,月有阴晴圆缺,此事古难全。但愿人长久,千里共婵娟。”这是()词中的句子。
【多选题】以下关于MapReduce工作流程说法正确的是
B.
不同的Reduce任务之间不会发生任何信息交换
C.
用户不能显式地从一台机器向另一台机器发送消息
D.
所有的数据交换都是通过MapReduce框架自身去实现的
【单选题】“人有悲欢离合,月有阴晴圆缺,此事古难全。但愿人长久,千里共婵娟。“出自苏轼的
【单选题】关于shuffle,以下说法不正确的是?
A.
Map端和Reduce端都有Shuffle过程
C.
Combiner合并是把相同键的键值对合为一个