相关考题
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多项选择题
Which can be done to secure the virtual terminal interfaces on a router？（）
A.Administratively shut down the interfaces.
B.Physically secure the interfaces.
C.Configure a virtual terminal password and login process.
D.Enter an access list and apply it to the terminal interfaces using the access-class command.
E.Create an access list and apply it to the terminal interfaces using the access-groupc ommand. -
多项选择题
At which layers of the OSI model do WANs operate (Choose two.)（）。
A.application layer
B.session layer
C.transport layer
D.network layer
E.datalink layer
F.physical layer -
单项选择题
Which statement is correct regarding the operation of DHCP?（）
A.A DHCP client uses a ping to detect address conflicts.
B.A DHCP server uses a gratuitous ARP to detect DHCP clients.
C.A DHCP client uses a gratuitous ARP to detect a DHCP server.
D.If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.
E.If an address conflict is detected, the address removed from the pool for an amount of time configurable by the administrator.
F.If an address conflict is detected, the address is removed from the pool and will not be reused until server is rebooted.
