what is anycast address (Ipv6)?

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what is anycast address (Ipv6)?
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第1题:

Which three are characteristics of an IPV6 anycast address?()

A.any-to-many communication model

B.delivery of packets to the group interface that is closest to the sending device

C.one-to-many communication model

D.the same address for multiple devices in the group

E.one-to-nearest communication model

F.a unique IPV6 address for each device in the group


参考答案:B, D, E

第2题:

What is the difference between the IPv6 addresses ::/0 and ::/128?()

  • A、::/0 is the unspecified address, and ::/128 is the multicast address
  • B、::/0 is the unicast address, and ::/128 is the anycast address
  • C、::/0 is the unicast address, and ::/128 is the multicast address
  • D、::/0 is the anycast address, and ::/128 is the multicast address
  • E、::/0 is the default route, and ::/128 is the unspecified address
  • F、::/0 is the anycast address, and ::/128 is the default address

正确答案:E

第3题:

地址FF02::2属于IPv6的(22)地址类型。

A.单播地址(unicast address)

B.组播地址(multicast address)

C.任意播地址(anycast address)

D.广播地址(broadcast address)


正确答案:B
解析:IPv6支持3种基本地址类型:单播(unicast)地址、组播(multicast)地址、任意播(anycast)地址。这3种地址类型的定义及其相互间区别见表6-4。由表6-4分析可知,在路由器请求报文中目的地址FF02::2属于组播地址。另外对于IPv6地址需要注意以下4点内容:①组播地址和任意播地址均不可用做IPv6的信源地址;②组播地址也不能用做任何寻路头标;③任意播地址绝不可以分配给IPv6主机,即它只能分配给IPv6路由器;④与IPv4不同的是,IPv6不采用广播地址。为了达到广播效果,IPv6使用能够发往所有接口组的组播地址。换句话说,在IPv6地址中,没有广播地址,而是用组播地址代替了广播地址。

第4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

正确答案:C,F

第5题:

what’s the role of link-address in Ipv6,is it necessary, why?


正确答案: It is necessary.
(1)Link-local addresses are used in the neighbor discovery protocol and the stateless autoconfiguration process.
(2)routing protocols use link-local address as source address to send routing message.

第6题:

Which statement is true about IPv6?()

  • A、Only one IPv6 address can be assigned to each interface.
  • B、IPv6 hosts use anycast addresses to assign IP addresses to interfaces.
  • C、Each host can a utoconfigure its address without the aid of a DHCP server.
  • D、Only one IPv6 address is assigned per node.

正确答案:C

第7题:

The company network is in the process of migrating the IP address scheme to use IPv6. Which of the following address types are associated with IPv6?()

  • A、Unicast
  • B、Private
  • C、Broadca st
  • D、Public
  • E、Multicast
  • F、Anycast

正确答案:A,E,F

第8题:

The company network is in the process of migrating the IP address scheme to use IPv6. Which of the following address types are associated with IPv6?()

A. Unicast

B. Private

C. Broadca st

D. Public

E. Multicast

F. Anycast


参考答案:A, E, F

第9题:

Which are correct descriptions and configurations of Anycast RP?()

  • A、In Anycast RP, two or more RPs are configured with the same IP address on loopback interfaces.
  • B、Anycast RP provides redundancy and load-sharing capabilities.
  • C、Routers with Anycast RP can be configured statically (loopback 1.1.1.1)with the command ip pim rp-address 1.1.1.1
  • D、Routers with Anycast RP can be configured statically (loopback 1.1.1.1)with the command ip rp-address pim 1.1.1.1
  • E、Routers with Anycast RP can be configured statically (loopback 1.1.1.1)with the command ip anycast-rp pim 1.1.1.1

正确答案:A,B,C

第10题:

What is known as "one-to-nearest" addressing in IPv6?()

  • A、global unicast
  • B、anycast
  • C、multicast
  • D、unspecified address

正确答案:B

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