IPv6 Exam 2

1. The three types of IPv6 address are
2. The IPv6 unicast address format is shown below

Match the fields shown above with the correct length in bits

 
Interface ID
48-bits long

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16-bits long

Unselect

64-bits long

Unselect

Subnet ID
48-bits long

Unselect

16-bits long

Unselect

64-bits long

Unselect

Global Routing Prefix
48-bits long

Unselect

16-bits long

Unselect

64-bits long

Unselect

3. Site-local IPv6 addresses are functionally similar to private IPv4 addresses
4. What is the Next Header value of ICMPv6?
5. Duplicate address detection is not performed on an anycast IPv6 address
6. What are the few advantages of using multicast instead of broadcast in an IPv6 network?
7. There is no checksum field in an IPv6 header, error detection is done by which of the following two layers?
8. Which two statements are correct about the Flow label field of an IPv6 header?
9. IPsec is available for both IPv4 and IPv6 but it is mandatory in IPv6 and is enabled by default
10. Match the service with its respective IPv6 solution
Autoconfiguration
Neighbour Discovery

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IPsec

Unselect

Uses Traffic Class field

Unselect

DHCPv6 and Stateless

Unselect

Security
Neighbour Discovery

Unselect

IPsec

Unselect

Uses Traffic Class field

Unselect

DHCPv6 and Stateless

Unselect

QoS
Neighbour Discovery

Unselect

IPsec

Unselect

Uses Traffic Class field

Unselect

DHCPv6 and Stateless

Unselect

ARP
Neighbour Discovery

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IPsec

Unselect

Uses Traffic Class field

Unselect

DHCPv6 and Stateless

Unselect

11. IPv4 header compresses  better than the IPv6 header because of fewer fields
12. Which of the two problems in IPv4 are resolved in IPv6?
13. Dual stack means that both IPv4 and IPv6 run concurrently on network devices
14. Which two statements are correct of using IPv6 on the Windows operating system?
15. Which two benefits result from the redesign of an IPv6 header from an IPv4 header?
16. The hexadecimal fields, A, B, C, D, E, F are case sensitive in an IPv6 address
17. Choose a valid IPv6 address URL from below
18. Four types of addresses used in IPv6 are unicast, anycast, multicast and broadcast
19. Link-local addresses are created automatically using which of the following prefix and interface identifier?
20. How many fields an IPv6 header contain?
21. Which field is unique in an IPv6 header and is not used in an IPv4 header?
22. Which header field is used to extend the functionality of IPv6, thereby, decreasing the processing time on IPv6 devices?
23. Which two commands can be used on Windows PC to verify IPv6 configuration?
24. Which two commands can be used on Windows PC to show IPv6 routing table?
25. The command to show IPv6 neighbours on Windows PC is 'netsh interface ipv6 show neighbors'
26. Which command can be used on Cisco router to enable IPv6 under an interface?
27. Which types of error messages are supported by ICMPv6?
28. Which process is used during the autoconfiguration to make sure that autoconfigured IPv6 address is unique?
29. Neighbour discovery is used to discover the layer 2 address of the default router on the subnet
30. Match DNS record with the correct description
A
Mail exchange

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Name Server

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IPv6 host address

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IPv4 host address

Unselect

AAAA
Mail exchange

Unselect

Name Server

Unselect

IPv6 host address

Unselect

IPv4 host address

Unselect

MX
Mail exchange

Unselect

Name Server

Unselect

IPv6 host address

Unselect

IPv4 host address

Unselect

NS
Mail exchange

Unselect

Name Server

Unselect

IPv6 host address

Unselect

IPv4 host address

Unselect

31. What are some of the features of using DHCPv6 for IPv6?
32. What are the few configuration options used in DHCPv6?
33. Which two fields in an IPv6 header are used to support QoS functions?
34. Which of the following QoS features are currently not supported in IPv6?
35. Which version of Network Time Protocol (NTP) supports IPv6?
36. Which IPv6 multicast group is used in RIPng as the destination address for RIP updates?
37. Which of the following VPN types are supported in IPv6?
38. List a few security issues in an IPv6 transition environment, when the tunneling method is used?
39. Which of the following network security threats are present in IPv6?
40. Which two solutions can be used in IPv6 to mitigate the neighbour cache-poisoning attack in IPv6?
41. Bogus route injection can be prevented in an IPv6 network by using authentication, which routing protocols support authentication?
42. What are the few disadvantages of using dual-stack integration in IPv6 network?
43. What is the standard allocation for an IPv6 address block from an Internet service provider?
44. What are the few disadvantages of using Native IPv6 or IPv6-Only deployment?
45. What are the few methods to provision IPv6 over an MPLS network?
46. Cisco 6PE is a customer-provided router that encapsulates IPv6 packets into IPv4 MPLS packets
47. Neighbour discovery enables which of the following functions?
48. Why an IPv6 device uses the MAC address of its interface to generate a unique 64-bit interface ID?
49. Extension header is used to identify optional processes that can be run on each IPv6 packet
50. Which are the valid types of ICMPv6 Destination Unreachable message?

 

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