简答题

You have 2 commands used for ftp：
ip ftp username xxxxxx
ip ftp password yyyyyy
Which two commands will be used when switching from ftp to http？

A.warnings only
B.warnings， notifications， error， debugging， informational
C.warnings， errors， critical， alerts， emergencies
D.notifications， warnings， errors
E.warnings， errors， critical， alerts

A.Action Management
B.Fault Management
C.Configuration Management
D.Protocol Management
E.Security Management