A.使用策略控制來結(jié)合認(rèn)證、用戶接入和管理員接入對(duì)接入安全性進(jìn)行擴(kuò)展 B.提供更大的靈活性和機(jī)動(dòng)性、增強(qiáng)的安全性以及用戶生產(chǎn)力增益 C.對(duì)所有用戶采用統(tǒng)一的安全策略 D.減少在擴(kuò)展用戶和管理員對(duì)網(wǎng)絡(luò)的接入時(shí)所需的管理性和運(yùn)營負(fù)擔(dān)
When upgrading the IOS image,the network administrator receives the exhibited error message.What could be the cause of this error?()
A.The new IOS image is too large for the router flash memory. B.The TFTP server is unreachable from the router. C.The new IOS image is not correct for this router platform. D.The IOS image on the TFTP server is corrupt. E.There is not enough disk space on the TFTP server for the IOS image.
A.RARP B.RUDP C.ICMP D.SNMP