Which three approaches can be used while migrating from an IPV4 addressing scheme to an IPV6 scheme?（）

单项选择题How many bits are contained in each field of an IPv6 address？（）

A.24
B.4
C.8
D.16

单项选择题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?（）

A.0.0.0.240
B.255.255.255.252
C.255.255.255.0
D.255.255.255.224
E.255.255.255.240

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