了解起重作业现场环境时,应了解哪些内容了解现场环境的内容包括
对E-RABDropRate的统计哪个计算方式是正确的()
A. Number of normally released E-RAB / Number of successfully established E-RAB x 100%
B. Number of abnormally setup E-RAB / Number of successfully established E-RAB x 100%
C. 以上都不对
D. Number of abnormally released E-RAB / Number of successfully established E-RAB x 100%
IPv6中哪一个协议的功能与IPv4中的ARP类似()
A. Duplicate Address Detection
B. 没有
C. Neighbour Discover
D. Neighbor Unreachability Detection