单项选择题

For the network 192.0.2.0/23, which option is a valid IP address that can be assigned to a host?（）

A.192.0.2.0
B.192.0.2.255
C.192.0.3.255
D.192.0.4.0

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单项选择题

The ip subnet zero command is not configured on a router. What would be the IP address of Ethernet0/0 using the first available address from the sixth subnet of the network 192.168.8.0/29? （）

A.192.168.8.25
B.192.168.8.41
C.192.168.8.49
D.192.168.8.113

单项选择题

Refer to the exhibit.Which statement describes DLCI 17？（）

A.DLCI 17 describes the ISDN circuit between R2 and R3.
B.DLCI17 describes a PVC on R2.It cannot be used on R3 or R1.
C.DLCI17 is the Layer 2 address used by R2 to describe a PVC to R3.
D.DLCI17 describes the dial-up circuit from R2 and R3 to the service provider.

单项选择题

Which command shows your active Telnet connections?（）

A.show session
B.show cdp neighbors
C.show users
D.show queue