Which subnet mask would be appropriate for a network address range to be subnetted for up to eight LANs, with each LAN containing 5 to 26 hosts?（）

单项选择题An administrator must assign static IP addresses to the servers in a network.For network 192.168.20.24 29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP propertied box for the sales server?（）

A.IP address:192.168.20.14 Subnet Mask:255.255.255.248 Default Gateway:192.168.20.9
B.IP address:192.168.20.254 Subnet Mask:255.255.255.0 Default Gateway:192.168.20.1
C.IP address:192.168.20.30 Subnet Mask:255.255.255.248 Default Gateway:192.168.20.25
D.IP address:192.168.20.30 Subnet Mask:255.255.255.240 Default Gateway:192.168.20.17
E.IP address:192.168.20.30 Subnet Mask:255.255.255.240 Default Gateway:192.168.20.25

多项选择题the network administrator has been asked to give reasons for moving from ipv4 to ipv6. what are two valid reasons for adopting ipv6 over ipv4?（）

A.telnet access does not require a password
B.nat
C.no broadcast
D.chanage of destination address in the ipv6 header
E.chanage of source address in the ipv6 header
F.autoconfiguration

多项选择题the network administrator has been asked to give reasons for moving from ipv4 to ipv6. what are two valid reasons for adopting ipv6 over ipv4?（）

A.telnet access does not require a password
B.nat
C.no broadcast
D.chanage of destination address in the ipv6 header
E.chanage of source address in the ipv6 header
F.autoconfiguration

多项选择题Which two statements describe characteristics of IPv6 unicast addressing?（）

A.Global addresses start with 2000::/3.
B.Link-local addresses start with FE00:/12.
C.Link-local addresses start with FF00::/10.
D.There is only one loopback address and it is ::1.
E.If a global address is assigned to an interface, then that is the only allowable address for the interface.

多项选择题Refer to the diagram. All hosts have connectivity with one another. Which statements describe the addressing scheme that is in use in the network? （）

A.The subnet mask in use is 255.255.255.192.
B.The subnet mask in use is 255.255.255.128.
C.The IP address 172.16.1.25 can be assigned to hosts in VLAN1
D.The IP address 172.16.1.205 can be assigned to hosts in VLAN1
E.The LAN interface of the router is configured with one IP address.
F.The LAN interface of the router is configured with multiple IP addresses.