更多"[判断题]Just-in-time systems reduce pr"的相关试题:
[判断题]
Poor product quality and low productivity are hidden costs associated with basing production in a foreign location.()
A.正确
B.错误
[判断题]. (判断题,)Poor product quality and low productivity are hidden costs associated with basing production in a foreign location.
A.正确
B.错误
[单选题]Map-Reduce任务在map阶段和reduce阶段数据输入格式是什么?
A.JSON
B.XML
C.CSV
D.Key/Value 键值对
[判断题]MapReduce程序只有Map和Reduce两个过程
A.正确
B.错误
[单选题]哪个是 Map-Reduce 的默认调度策略?
A.Fair Scheduler
B.Capacity Scheduler
C.FIFO
D.Deadline Scheduler
E.Constraint-based Scheduler
[单选题]MapReduce处理流程中Reduce如何获取Map端结果()
A.Map端发送
B.Reduce端获取
C.Map端发送到中间管理节点,Reduce统一获取
D.随机发送
[单选题]下面对Map-Reduce 的描述哪个是错误的?
A.Map-Reduce 的核心思想就是"分而治之"
B.Map-Reduce 是一种分布式计算模型
C.Map 作业会运行在多个节点,reduce作业只运行在单个节点
D.Map-Reduce为无共享式架构
[单选题]下面关于Map-Reduce的哪一个观点是错误的?
A.一般map操作都是本地化操作也就是在数据存储节点上进行
B.Map-Reduce 应用程序只能用java语言实现
C.Map-Reduce 程序可以只存在Map 作业, reduce作业不是必须的
D. YARN框架中,Map-Reduce 只是其中的一种分布式计算模式
[判断题]
The basic principle behind incentive systems is to ensure that the incentive scheme for an individual employee is linked to an output target that he or she has some control over and can influence.
A.正确
B.错误
[单选题]哪些不是Map-Reduce V1 计算框架中的组件角色?
A.JobTracker
B.TaskTracker
C.NameNode
D.JobClient
E.DataNode
[多选题]下面对 Map-Reduce 的Partition 操作哪些描述是错误的?
A.Partition操作发生在Map输入分片时
B.Partition操作发生在Map作业输出时
C.可以按需实现特定的Partitioner 算法,提高map效率
D.可以按需实现特定的Partitioner 算法,提高reduce效率
E.一个Partitioner对应一个reduce作业
[单选题]
Assuming that systems are synchronized, which action could take place if the fail over cable
Is connected correctly and working properly, but the systems cannot communicate over the network due to external network problems?
A.If network failover is enabled, the standby system will assume the active mode.
B.Whether or not network failover is enabled, the standby system will stay in standby mode.
C.Whether or not network failover is enabled, the standby system will assume the active mode.
D.If network failover is enabled, the standby system will go into active mode but only until the network recovers.
[多选题]下面哪些是Map-Reduce任务运行中可能涉及的运行阶段?
A.输入分片 input split
B.map阶段
C.combiner阶段
D.shuffle阶段
E.reduce阶段
[多选题]下面对 Map-Reduce 的Combiner 的作用哪些描述是正确的?
A.降低了Map作业的计算负载
B.Combiner是一个本地化的reduce操作
C.减少传输到Redcue数据量
D.实现本地key的聚合,对map输出的key排序,value进行迭代
E.一个combiner只是处理一个节点中的输出
[多选题]原Map-Reduce V1 计算框架中 jobTracker 的功能 ,在 Map-Reduce V2 (Yarn) 计算框架中由哪几个组件来完成?
A.ResourceManager
B.NodeManager
C.ApplicationMaster
D.JobHistoryServer
[单选题]Map-Reduce任务在做哪个类型运算时不能使用combiner来提高效率?
A.求和
B.求平均值
C.求最小值
D.求最大值
[多选题]哪些是Map-Reduce V2 (Yarn) 计算框架中的组件角色?
A.JobClient
B.ResourceManager
C.JobTracker
D.TaskTracker
E.ApplicationMaster
F.NodeManager