To enable BGP tunneling over an IPv4 backbone, the IPv4 address 192.168.30.1 is converted into a valid IPv6 address.Which three IPv6 addresses are acceptable formats for the IPv4 address? ()A. 192.168.3 0.1:0:0:0:0:0:0B. 0:0:0:0:0:0:192.168.30.1C. ::192.1

第1题：

第2题：

Which two statements are true about using IPv4 and IPv6 simultaneously on a network segment? （）

• A、IPv6 allows a host to create its own IPv6 address that will allow it to communicate to other devices on a network configured via DHCP. IPv4 does not provide a similar capability for hosts.
• B、IPv6 provides for more host IP addresses but IPv4 provides for more network addresses.
• C、Hosts can be  configured to receive both IPv4 and IPv6 addresses via DHCP.
• D、Host configuration options for IPv4 can be either statically assigned or assigned via DHCP.Host configuration options for IPv6 can be statically assigned only.
• E、IPv4 and IPv6 addresses c an be simultaneously assigned to a host but not to a router interface.

第3题：

A Company is using 6to4 tunnels in their IPv6 network. Which two statements are true about thesetunnels？（）

• A、In a 6to4 tunnel， the first two bytes of the IPv6 address will be 0x2002 and the next four byteswill be the hexadecimal equivalent of the IPv4 address
• B、In a 6to4 tunnel， the IPv4 address 192.168.99.1 would be converted to the2002：1315：4463：1：：/64 IPv6 address
• C、In a 6to4 tunnel， the IPv4 address 192.168.99.1 would be converted to the 2002：c0a8：6301：：/48IPv6 address
• D、In a 6to4 tunnel， the first two bytes of the IPv6 address will be locally derived and the next twobytes will be the hexadecimal equivalent of the IPv4 address
• E、In a 6to4 tunnel， the IPv4 address 192.168.99.1 would be converted to the 2002：c0a8：6301：：/16IPv6 address

第4题：

What are three benefits of using IPv6?（）

• A、IPv6 supports a greater level of security by integrating features that were optional add-ons in IPv4.
• B、IPv6 reduces administrative overhead using stateless address autoconfiguration for hosts.
• C、IPv6 eliminates the need for private to public NAT using a large address pool.
• D、IPv6 provides backward compatibility with IPv4 using the Next Header field.
• E、IPv6 represents large IP addresses using dotted decimal notation.

第5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

第6题：

Which statement is true concerning 6to4 tunneling?（）

• A、The edge routers can use any locally configured  IPv6 address.
• B、Hosts and routers inside a 6to4 site will need a special code.
• C、An edge router must use IPv6 address of 2002::/16 in its prefix.
• D、IPv4 traffic is encapsulated with an IPv6 header.

第7题：

Which two statements about DS-Lite are true？（）

• A、IPv4 packets are carried over IPv6 tunnels to the LSN while IPv6 traffic is forwarded natively.
• B、Ipv6 packets are carried over IPv4 tunnels to the LSN while IPv4 traffic is forwards natively.
• C、The LSN performs NAT44 on private IPv4 source addresses.
• D、DS-Lite does not perform any address translation.

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第13题：

The network administrator has been asked to give reasons for moving from ipv4 to ipv6. what are two validreasons 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

第14题：

Which IPv6 address is the equivalent of the IPv4 interface loopback address 127.0.0.1?（）

• A、::1
• B、::
• C、2000::/3
• D、0::/10

第15题：

Which of the following solutions will encapsulate IPv6 packets with IPv4 headers？（）

• A、Create an IPv4 tunnel and assign the tunnel IPv6 addresses
• B、Create IPv4 interfaces on both ends of the network， and use either static routes or a routingprocess to direct IPv6 packets through those interfaces
• C、IPv6 packets cannot be encapsulated with IPv4 headers because the addresses are notcompatible
• D、Create IFV6 interfaces on both ends of the network， and use static routes to point the IPv4address to those interfaces
• E、Use an IPv6 routing protocol like OSPFv3 and assign IPv4 packets to that process
• F、Create an IPv4 tunnel and use the tunnel mode ipv6ip command

第16题：

To enable BGP tunneling over an IPv4 backbone, the IPv4 address 192.168.30.1 is converted into a valid IPv6 address. Which three IPv6 addresses are acceptable formats for the IPv4 address? （）

• A、192.168.3 0.1:0:0:0:0:0:0
• B、0:0:0:0:0:0:192.168.30.1
• C、::192.168.30.1
• D、C0A8:1E01::
• E、192.168.30.1::
• F、::C0A8:1E01

第17题：

Your company is researching a new application that runs over IPv6， but part of it must still have IPv4 support. Your company uses a traditional IPv4 network. Your plan is not to run IPv6 over the whole network， but to segment parts of the network or even to operate simultaneously with IPv6 and IPv4. You must make a brief presentation about IPv6 technology to the board of technical directors. Which three of these items could be part of your presentation？ （）

• A、 Tunnel IPv6 over IPv4 to connect far-end IPv6 networks
• B、 Explain why configuring IPv4 and IPv6 at the same time over the same LAN interface is not possible
• C、 Explain why configuring IPv4 and IPv6 at the same time over the same LAN interface is possible
• D、 What is the meaning of EUI-64 and how does it work？
• E、 Tunnel IPv4 over IPv6 to connect far-end IPv4 networks.

第18题：

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

• A、statically map IPV4 address to IPV6 addresses
• B、configuration IPv4 tunnels between IPV6 islands
• C、use DHCPv6 to map IPV4 addresses to IPV6 addresses
• D、use proxying and translation to translate IPV6 packets into IPV4 packets
• E、configure IPV6 directly
• F、enable dual-stack routing

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