2. 计算机
  3. One ofthe main resposibilities ofICMP is to report(71). Although technology hasproduced increasingly relaible transmission media

One ofthe main resposibilities ofICMP is to report(71). Although technology hasproduced increasingly relaible transmission media

admin2019-05-15  54
问题 One ofthe main resposibilities ofICMP is to report(71). Although technology hasproduced increasingly relaible transmission media, errors still exist and must be handled. IP isan(72) protocol. This means that error checking and error control are not a concem ofIP. ICMP was designed, in part, to compensate for this shortcoming. Howerver, ICMP doesnot(73)errors, it simply report them. Error correction is left to the higher-levelpotocols. Error messages are always sent to the original(74)because the only informationavailable in the datagram about the route is the source and destination IP addresses. ICMP usethe source IP address to sent the error massage to the source ofthe  (75).
(72)
选项 A、reliable
B、unreliable
C、available
D、unavailable
答案B
解析
转载请注明原文地址:https://www.kaotiyun.com/show/25kZ777K
本试题收录于： 网络管理员上午基础知识考试题库软考初级分类
0

网络管理员上午基础知识考试

软考初级

相关试题推荐
随机试题
最新回复(0)