下面哪项并非STP能解决的问题

单项选择题在下面的配置中，哪个命令是其他命令得以生效的前提条件S3#config tS(config)#int fa0 3S3(config-if#switchport port-securityS3(config-if#switchport port-security maximum 3S3(config-if#switchport port-security violation restrictS3(config-if#Switchport mode-security aging time 10

多项选择题给定下述输出，下面哪些说法是正确的S3#sh port-security int f0 3Port Security : EnabledPort Status : Secure-shutdownViolation Mode : ShutdownAging Time : 0 minsAging Type : AbsoluteSecureStatic Address Aging : DisabledMaximum MAC Addresses : 1Total MAC Addresses : 2Configured MAC Addresses : 0Sticky MAC Addresses : 0Last Source Address:Vlan : 0013:0ca69:00bb3:00ba8:1Security Violation Count : 1