请参见图示。如果主机1需要从服务器请求IP地址,哪种协议将用来处理该请求?()
A. CSMA/CD
B. CSMA/CA
C. DHCP
D. ICMP
E. NAT
FTP
某企业每月固定成本2000元,单价20元,计划销售产品500件,欲实现目标利润2000元,其单位变动成本应为()元。
A. 4
B. 8
C. 12
D. 15
欲比较三种药物的疗效(无效、好转、显效、痊愈)孰优孰劣,最好选择()
A. t检验
B. 方差分析
C. Χ检验
D. 秩和检验
E. u检验
Which of these is a correct description of Stateful Switchover?()
A. It will only become active after a software failure
B. It will only become active after a hardware failure
C. It requires that Cisco N3F· be enabled in order to work successfully
D. It synchronizes the MAC·, FIB·, and adjacency tables between Active and Standby RouteProcessors