1、 In a project plan, when the project manager schedules activities, he (or she) often uses ( ) method,precedence relationships between acticities are represented by cireles connected by one or more arrows. The length of the arrow represents the duration of the relevant activity.

A、causality diagram

B、Gantt chart

C、histogram

D、arrow diagram

信管網(wǎng)參考答案：D

在項(xiàng)目計(jì)劃中，當(dāng)項(xiàng)目經(jīng)理安排活動(dòng)時(shí)，他（或她）經(jīng)常使用（）方法，活動(dòng)之間的優(yōu)先關(guān)系由一個(gè)或多個(gè)箭頭連接的圓環(huán)表示。箭頭的長(zhǎng)度表示相關(guān)活動(dòng)的持續(xù)時(shí)間。

A、 因果圖

B、 甘特圖

C、 直方圖

D、 箭頭圖

信管網(wǎng)解析：http://www.jazzmuze.com/pm1/65384.html

2、（） is a programming model and an associated implementation for processing and generating big data sets with a parallel, distributed algorithm on a cluster. The model is a specialization of the split-apply-combine strategy for data analysis.

A. HDFS

B. Chukwa

C. MapReduce

D. HBase

信管網(wǎng)參考答案：C

（Mapreduce）是一種編程模型和相關(guān)實(shí)現(xiàn)，用于在集群上使用并行分布式算法處理和生成大數(shù)據(jù)集。 該模型是數(shù)據(jù)分析的分裂應(yīng)用組合策略的專業(yè)化。

信管網(wǎng)解析：http://www.jazzmuze.com/pm1/58534.html