[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f2QBiAdehKXnMZqBihqRJgXO7SZVlie0HOgHWylOlJU8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-09-29 23:43:13",98690781,[8,9,10,11],"chown","cd","chgrp","chmod",{"courseId":13,"courseImg":14,"courseName":15},"8f1f7f622f52a5744ca5c4c67d5a7e25","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F59d71c300dff6ba7fa49e1ad37a4ae2d.jpg","大数据原理与技术","修改文件用户组的命令是( ).",[18,29,38,47,56,59,68,77,86,95],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],98690773,[22,23,24,25],"NameNode","DataNode","ResourceManager","NodeManager","Hadoop集群的计算资源是由以下哪一项进行管理( )","v1",1,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],98690774,[33,34,35,36],"1份","2份","不确定","3份","HDFS 中的 block 默认保存几份( ).",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],98690775,[42,43,44,45],"互联网","金融","电信","公共管理","大数据的起源是( ).",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],98690778,[51,52,53,54],"hdfs dfs -cat \u002Fse20\u002Ffile01.txt","hdfs dfs -mkdir \u002Fse20\u002Ffile01.txt","hdfs dfs -touchz \u002Fse20\u002Ffile01.txt","hdfs dfs -rmdir \u002Fse20\u002Ffile01.txt","HDFS上创建空文件 \u002Fse20\u002Ffile01.txt 的命令是( ).",{"answer":57,"createTime":5,"id":6,"options":58,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":27,"type":28},[],98690784,[63,64,65,66],"vim","cat","ls","Tab","显示当前目录下的文件、子目录的命令是( ).",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":27,"type":28},[],98690785,[72,73,74,75],"hadoop fs -appendtofile test02.txt \u002Fse20\u002Ftest01.txt","hadoop fs -get test02.txt \u002Fse20\u002Ftest01.txt","hadoop fs -put test02.txt \u002Fse20\u002Ftest01.txt","hadoop fs -appendToFile test02.txt \u002Fse20\u002Ftest01.txt","本地有test02.txt文件,将该文件的内容向HDFS上的文件 \u002Fse20\u002Ftest01.txt追加的命令是( ).",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":27,"type":28},[],98690787,[81,82,83,84],"hdfs dfs -put \u002Ftest02.txt \u002Fse20","hdfs dfs -get \u002Ftest02.txt \u002Fse20","hadoop fs -mv \u002Ftest02.txt \u002Fse20","hdfs dfs -cp \u002Ftest02.txt \u002Fse20","HDFS上文件的移动:现有\u002Fse20子目录,将\u002Ftest02.txt文件移动到 \u002Fse20 之中的命令是",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":27,"type":28},[],98690789,[90,91,92,93],"hdfs dfs -ls \u002Fse20\u002Ffile02.txt","hdfs dfs -put \u002Fse20\u002Ffile02.txt","hdfs dfs -get \u002Fse20\u002Ffile02.txt","hdfs dfs -cat \u002Fse20\u002Ffile02.txt","查看HDFS根目录下的文件 \u002Fse20\u002Ffile02.txt 的内容命令是( ).",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":27,"type":28},[],98690791,[99,100,101,102],"hadoop-daemon.sh namenode start","start namenode hadoop-daemon.sh","hadoop-daemon.sh start namenode","start hadoop-daemon.sh namenode","下面选项中哪一项是可以单独启动 namenode 进程命令( )."]