【单选题】

【单选题】

【判断题】Hadoop存储系统HDFS的文件是分块存储,每个文件块默认大小为32MB

【单选题】I think I am old enough and strong enough to() my own life.

【单选题】下列值不为true的表达式有()

【单选题】I recently read an article that says Americans spend half their____________ time online.

【单选题】

【单选题】He ________ his spare time to help the old people in the neighborhood.

【判断题】java是不区分大小写的语言

【单选题】

【单选题】

【单选题】

【单选题】The woman had been dead for about 3 days and her face was not recognizable .

【多选题】对HDFS内的文件进行操作,以下说法正确的是()。

【单选题】While she was _________ losing her life, she was still concerned about her fellow sufferers.

【判断题】HDFS系统采用NameNode定期向DataNode发送心跳消息,用于检测系统是否正常运行。()

【单选题】表达式(11+3*8)/4%3

【单选题】The bad weather only()our difficulties.

【多选题】Hadoop存储系统HDFS的体系结构的设计目标包含()

【单选题】下面的代码段执行之后count的值是() int count = 1; for(int i=1;i<=5;i++){ count+=i; } System.out.println(count);

【判断题】HDFS系统为了容错保证数据块完整性,每一块数据都采用2份副本()

【单选题】They can then use this information to steal your identity or perpetrate frauds in your name. You must always be on your guard and never give out any of your details, especially to strangers.

【多选题】HDFS的适用性和局限性,以下说法正确的是()

【单选题】

【单选题】The book offers some __________ advice to any new employee.

【单选题】

【单选题】The college has a Welcome Week to help new students()college life.

【单选题】查看HDFS系统运行状态的Shell命令,以下正确的是()

【单选题】Living at college, first of all, gives me a sense of responsibility, of being on my own. My parents aren’t around to say, “No, you’re not going out tonight” or “Did you finish your homework?”

【单选题】

【单选题】查看HDFS系统版本的Shell命令,以下正确的是()。

【单选题】She took ________ care not to miss the chance.

【单选题】

【单选题】

【多选题】HDFS中的NameNode节点用于存放元数据,数据内容包含()。

【填空题】String s1="China"; int n = s1.length(); n的值为()

【单选题】

【多选题】HDFS与传统数据存储对比,主要特点包含()。

【单选题】

【判断题】分配系数KA<1表示萃余相中A组分的浓度

【单选题】score是一个整数数组,有五个元素,已经正确初始化并赋值,仔细阅读下面代码,程序运行结果是() temp = score[0]; for(int index=1;index<5;index++){ if(score[index] temp = score[index]; } }

【单选题】java中定义字符串String s = "pzhu",下面操作可以取得字符串长度的是();

【判断题】用户可以通过” hadoop fs –put ”命令获取远端文件数据()

【单选题】_____________ shopping online, most people go looking for one thing: the lowest price.

【单选题】

【单选题】

【单选题】They promised to create more jobs for unemployed young people.

【单选题】

【判断题】java中%是取余运算符。

【判断题】Java中数组的元素只能是简单数据类型的量。