the network administrator has been asked to give reasons for moving from ipv4 to ipv6. what are two valid reasons for adopting ipv6 over ipv4?（） [" telnet access does not require a password"," nat"," no broadcast"," chanage of destination address in the ipv6 header"," chanage of source address in the ipv6 header"," autoconfiguratio"]
冷油器的换热效率主要有哪些因素有关？
Which one of the following potential issues is eliminated by using split horizon？（） ["Joined horizons","Packet forwarding loops","cisco Express Forwarding load-balancing inconsistency","Asymmetric routing throughout the network"]
In the Carrier Support Carrier （CsC） feature， which two protocols run CSC-PE and CSC-CS ？（） ["EBGPv4 with a sending community","IGP and LDP","EBGPv4 with a sending label","IGP and EBGPv4","IGP and RSVP"]
使用不合理的或错误的数据进行系统测试的目的是保证系统的（） ["正确性","可靠性","可理解性","可维护性"]
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