Ch2 IP Addressing & Topics | Test Bank – 4th Edition

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Chapter 10: Transitioning from IPv4 to IPv6: Interoperation

Student: ___________________________________________________________________________

1. The obvious solution to an Internet running two versions of IP is to have it populated by hosts and routers that also run two versions of IP. 
True    False

2. By default, application services such as DNS, DHCP, and FTP are compatible with the IPv6 address space. 
True    False

3. The nested model could be used for an IPv6 site that requires one or more “islands” of IPv4 subnets. 
True    False

4. The transition from IPv4 to IPv6 requires that multiple stages occur in the move from a pure IPv4 environment to one that exclusively uses IPv6. 
True    False

5. Both dual-IP-layer and dual-stack architecture require IPv6-over-IPv6 tunneling to be effective as a transition mechanism. 
True    False

6. ____ is used throughout the industry today to provide translation between private IP addresses and public IP addresses. 
A. 6to4
B. NAT
C. ISATAP
D. Teredo

7. Windows Server 2008, Windows Vista, and Windows 7 support a TCP/IP implementation that integrates IPv4 and IPv6 in a dual-stack configuration that Microsoft calls its ____ TCP/IP stack. 
A. Updated
B. Version 2.0
C. Next Generation
D. Advanced

8. ____ addresses are composed of a valid 64-bit unicast address prefix and an IPv4 interface identifier. 
A. ISATAP
B. Teredo
C. 6to4
D. 6over4

9. The ____ network model can represent a number of hybrid configurations, but it assumes that a site has a variety of different subnets, based on IP version implementation. 
A. basic hybrid
B. transition hybrid
C. nested
D. true hybrid

10. The ____ specification describes two domains, an IPv4 domain and an IPv6 domain, joined by one or more IP/ICMP translators called XLATs. 
A. FQDN
B. ISATAP
C. SIIT
D. NAT-PT

11. SIIT defines a type of IPv6 address called ____ addresses that can be formatted as ::ffff:0:0:0/96 or ::ffff:0:a.b.c.d. 
A. unique hybrid
B. transition
C. domain
D. IPv4 translated

12. A(n) ____ protocol for a host or router is implemented at the level of the device’s operating system, allowing the device to support both IPv4 and IPv6, either as independent protocols or in a hybrid form. 
A. dual-stack
B. dual-architecture
C. hybrid
D. transition

13. A network node possessing a(n) ____ architecture has both IPv4 and IPv6 protocols operating in a single Transport layer implementation. 
A. dual-stack
B. dual-IP-layer
C. hybrid-layer
D. dual-transport

14. A computer possessing a(n) ____ architecture maintains separate stacks at both the Network and Transport layers. 
A. hybrid-layer
B. dual-transport
C. dual-IP-layer
D. dual-stack

15. With IPv6-over-IPv4, when the IPv4 header is created, the protocol field value is set at ____ to indicate that it is an encapsulated IPv6 packet. 
A. 37
B. 41
C. 53
D. 61

16. To transition name resolution services from IPv4 to IPv6 on a mixed network, DNS servers must be configured for dual stack and support both A records for IPv4 nodes and ____ records for IPv6 nodes to allow names to be resolved into addresses. 
A. AAAA
B. master
C. domain
D. AA

17. The ____ node is responsible for reassembling any fragmented packets, removing the IPv4 header encapsulation, and processing the IPv6 packet. 
A. encapsulator
B. parser
C. decapsulator
D. gateway

18. IPv4/IPv6-capable routers that are linked in an IPv4 routing infrastructure can tunnel IPv6 packets between each other by creating a(n) ____ path. 
A. router-to-host
B. end-to-end
C. host-to-router
D. host-to-host

19. ____ tunneling requires that an administrator configure the end points of a tunnel. 
A. Automatic
B. Dynamic
C. Configured
D. Managed

20. For a ____ tunnel, two IPv6 nodes are linked directly using a tunnel over an IPv4 network infrastructure. 
A. host-to-host
B. router-to-router
C. router-to-host
D. host-to-router

21. RFC 4213, which made RFC 2893 obsolete, removed references to ____ tunneling and the use of IPv4-compatible addresses. 
A. managed
B. configured
C. static
D. automatic

22. ____ is used to connect dual-stack IPv4/IPv6 devices across IPv4 network infrastructures. 
A. FQDN
B. NAT-PT
C. ISATAP
D. NBMA

23. ISATAP nodes locate an ISATAP router by using address prefixes advertised by the ISATAP ____ that identifies the logical ISATAP subnet for the nodes. 
A. proxy
B. gateway
C. relay
D. router

24. ISATAP nodes use the default route of ____ and set that address on their tunneling interface as the next-hop address for the link-local address of the router. 
A. ::/0
B. ff::/0
C. ::/f
D. /0:ff::

25. A 6to4 ____ is a specialized device that acts as an IPv6/IPv4 router. 
A. router
B. relay
C. node/router
D. host/router

26. A Teredo ____ is an IPv4/IPv6 node that is connected to both an IPv4 Internet and an IPv6 Internet using different interfaces. 
A. client
B. host
C. relay
D. server

27. _____ means that one technology can work with another technology. 
________________________________________

28. The ____ network model can be considered an adaptation of the basic hybrid model. 
________________________________________

29. _____ was created as a replacement for NAT-PT, which was originally specified in RFC 2766 and subsequently documented in RFC 4966. 
________________________________________

30. _____ nodes allow a single computer to communicate to both IPv4-only and IPv6-only destination nodes without any tunneling mechanism in most cases, but often some form of tunneling must be deployed. 
________________________________________

31. The _____ is the node at the sending end of the tunnel, and it is responsible for encapsulating the IPv6 packet in an IPv4 header, then transmitting the packet in the tunnel. 
________________________________________

32. Match each item with a statement below. 

33. Briefly explain how to tunnel through the IPv4 cloud. 

34. What are some of the network elements that you must consider when transitioning to IPv6? 

35. What are some of the utilities designed to monitor, report on, and manage the network infrastructure? 

36. Briefly describe “6over4” addresses. 

37. Briefly describe the basic hybrid network model. 

38. Briefly describe the nested hybrid network model. 

39. Briefly describe IPv6-over-IPv4 tunneling. 

40. Briefly describe the Host-to-Router and Router-to-Host tunneling topology. 

41. Briefly describe ISATAP. 

42. Briefly describe 6to4 tunneling. 

Chapter 10: Transitioning from IPv4 to IPv6: Interoperation