Traditional Internet access methods like d

题型:单项选择题

问题:

Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up (1) at the customer premise over slow (2) ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet (3) technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the host computers at the customer premise connect to the (4) or cable "modem" over a much faster medium such as Ethernet. It also means that multiple (5) can connect to the Internet through the same connection.

(2)处应填入()

A.parallel

B.digital

C.serial

D.variable

考点:计算机软件水平考试中级嵌入式系统设计师中级嵌入式系统设计师2007下半年上午试题
题型:单项选择题

下列给定程序中,函数fun()的功能是:依次取出字符串中所有的数字字符,形成新的字符串,并取代原字符串。 请改正函数fun()中的错误,使它能得出正确的结果。 注意:不要改动main函数,不得增行或删行,也不得更改程序的结构。 试题程序: #include <stdio.h> #include <conio.h> void fun(char *s) {int i,j; for(i=0,j=0; s[i]!= ’\0’; i++) if(s[i]>= ’0’&&s[i]<= ’9’) /*************found**************/s[j]=s[i]; /*************found**************/ s[j]="\0"; } main() {char item[80]; clrscr(); printf("\nEnter a string: ");gets(item); printf("\n\nThe string is:\%s\n", item); fun(item); printf("\n\nThe string of changing is : \%s\n",item); }

题型:单项选择题

只有确定了(),教育活动才能有组织、有计划、有系统地向着预定的方向进行。

题型:单项选择题

建筑结构中,将墙或地梁承重于一个杯状的混凝土结构之上的基础是钢筋混凝土基础。

题型:单项选择题

一台路由器的路由表如下所示。当它收到目的IP地址为40.0.2.5的数据报时,它会将该数据报 ______。

A.要到达的网络

B.下一路由器

C.20.0.0.0

D.直接投递

E.30.0.0.0

F.直接投递

F.10.0.0.0

F.20.0.0.5

F.40.0.0.0

F.30.0.0.7

题型:单项选择题

用链表表示线性表的优点是

A.便于随机存取

B.花费的存储空间较顺序存储少

C.便于插入和删除操作

D.数据元素的物理顺序与逻辑顺序相同

更多题库