Download New Updated (Spring 2015) Cisco 642-902 Actual Tests 231-240




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



B.       0:0:0:0:0:0:

C.       ::

D.      C0A8:1E01::


F.        ::C0A8:1E01


Correct Answer: BCF






ON 232

What is IPv6 router solicitation?


A.       a request made by a node to join a specified multicast group

B.       a request made by a node for its IP address

C.       a request made by a node for the IP address of the DHCP server

D.      a request made by a node for the IP address of the local router


Correct Answer: D




Your Company trainee asks you, in the context of IPv6 and OSPF, what best describes a type 9 LSA? What should you tell her?


A.       Link LSA

B.       Interarea prefix LSA for ABRs

C.       Router LSA

D.      Switch LSA

E.       Intra-area prefix LSA

F.        None of the above


Correct Answer: E




Company plans on migrating their network from IPv4 to IPv6 in the near future. Which three techniques can be used to transition from IPv4 to IPv6? (Select three)


A.       Dual stack

B.       NAT

C.       Flow label

D.      Mobile IP

E.       6to4 tunneling

F.        Anycast

G.      MBGP


Correct Answer: ABE




Which command must be globally enabled on a Cisco router to support IPv6?


A.       ip routing ipv6

B.       ipv6 unicast-routing

C.       ipv6 routing

D.      ip classless

E.       ipv6 cef


Correct Answer: B




What number is a valid representation for the

200F:0000:AB00:0000:0000:0000:0000/56 IPv6 prefix?


A.       200F:0:0:AB/56

B.       200F:0:AB00::/56

C.       200F::AB00/56

D.      200F:AB/56


Correct Answer: B




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? (Choose three)


A.  Unicast

B.  Private

C.  Broadcast

D.  Public

E.  Multicast

F.  Anycast


Correct Answer: AEF




Company has migrated to IPv6 in their network. Which three IPv6 notations represent the same address? (Choose three)


A.       2031::130F::9C0:876A:130B

B.       2031:0000:130F:0000:0000:09C0:876A:130B

C.       2031:0:130F:::9C0:876A:130B

D.      2031::130F:0::9C0:876A:130B

E.       2031:0:130F:0:0:09C0:876A:130B

F.        2031:0:130F::9C0:876A:130B

Correct Answer: BEF




Which statement is true concerning 6to4 tunneling?


A.       IPv4 traffic is encapsulated with an IPv6 header.

B.       The edge routers can use any locally configured IPv6 address.

C.       Hosts and routers inside a 6to4 site will need a special code.

D.      An edge router must use IPv6 address of 2002::/16 in its prefix.


Correct Answer: D




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


A.       Hosts can be configured to receive both IPv4 and IPv6 addresses via DHCP.

B.       Host conf
iguration options for IPv4 can be either statically assigned or assigned via DHCP. Host configuration options for IPv6 can be statically assigned only.

C.       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.

D.      IPv4 and IPv6 addresses can be simultaneously assigned to a host but not to a router interface.

E.       IPv6 provides for more host IP addresses but IPv4 provides for more network addresses.


Correct Answer: AC


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