Which of the following protocols requests membership to a multicast group?()
A. IGMP
B. SNMP
C. SMTP
D. ICMP
通报适用于()。
A. 表彰先进
B. 传达重要精神或者情况
C. 向上级机关汇报情况
D. 批评错误
An administrator only has one public IP address that must be shared among five employees.Which of the following network schemes should be used?()
A. SNAT
B. SNAP
C. NAC
D. MPLS
调查报告的写作要求有()。
A. 实事求是
B. 用具体材料说明观点
C. 条款明确
D. 处理好叙述、议论、建议的关系