IPv6 Exam 1

1. Neighbour discovery is automatically provided for IPv6 nodes to find out neighbours on the same link
2. Which features of IPv6 resolves fundamentals problems with IPv4?
3. With IPv6 there is no need to connect multiple machines to the Internet using a single address and NAT
4. What are the three scopes defined in IPv6 for all address types?
5. In IPv6, a packet will be forwarded to how many hops before an error is returned to the sender?
6. The IPv4 time to live (TTL) header name remains the same in an IPv6 header
7. Match IPv6 neighbour discovery cache entry states with the correct description
Incomplete
This indicates that the router is waiting for a packet response.

Unselect

Neighbour discovery is currently performed

Unselect

A unicast neighbor solicitation has been sent but no answer has arrived yet

Unselect

Neighbour discovery has been successful

Unselect

The cache entry has expired but the neighbor wasn't found unreachable yet

Unselect

Reachable
This indicates that the router is waiting for a packet response.

Unselect

Neighbour discovery is currently performed

Unselect

A unicast neighbor solicitation has been sent but no answer has arrived yet

Unselect

Neighbour discovery has been successful

Unselect

The cache entry has expired but the neighbor wasn't found unreachable yet

Unselect

Stale
This indicates that the router is waiting for a packet response.

Unselect

Neighbour discovery is currently performed

Unselect

A unicast neighbor solicitation has been sent but no answer has arrived yet

Unselect

Neighbour discovery has been successful

Unselect

The cache entry has expired but the neighbor wasn't found unreachable yet

Unselect

Delay
This indicates that the router is waiting for a packet response.

Unselect

Neighbour discovery is currently performed

Unselect

A unicast neighbor solicitation has been sent but no answer has arrived yet

Unselect

Neighbour discovery has been successful

Unselect

The cache entry has expired but the neighbor wasn't found unreachable yet

Unselect

Probe
This indicates that the router is waiting for a packet response.

Unselect

Neighbour discovery is currently performed

Unselect

A unicast neighbor solicitation has been sent but no answer has arrived yet

Unselect

Neighbour discovery has been successful

Unselect

The cache entry has expired but the neighbor wasn't found unreachable yet

Unselect

8. IPV6 defines 128 bits of address space. The first 32 bits are used for network numbering, and the last 96 bits are used for host numbering
9. Which of the following are properties of IPv6 header?
10. Match the IPv6 header values with its correct description

 
Version
Indicates the length of the packet

Unselect

This field is identical to the use of the protocol field in the IPv4 header

Unselect

Indicates the version of the Internet Protocol being used

Unselect

Provide differentiated services based on the nature of data being transmitted

Unselect

This field is used to prevent packets from being circularly routed in a network

Unselect

Indicates that a packet belongs to a specific sequence of traffic between a source and destination

Unselect

Traffic Class
Indicates the length of the packet

Unselect

This field is identical to the use of the protocol field in the IPv4 header

Unselect

Indicates the version of the Internet Protocol being used

Unselect

Provide differentiated services based on the nature of data being transmitted

Unselect

This field is used to prevent packets from being circularly routed in a network

Unselect

Indicates that a packet belongs to a specific sequence of traffic between a source and destination

Unselect

Flow Label
Indicates the length of the packet

Unselect

This field is identical to the use of the protocol field in the IPv4 header

Unselect

Indicates the version of the Internet Protocol being used

Unselect

Provide differentiated services based on the nature of data being transmitted

Unselect

This field is used to prevent packets from being circularly routed in a network

Unselect

Indicates that a packet belongs to a specific sequence of traffic between a source and destination

Unselect

Payload Length
Indicates the length of the packet

Unselect

This field is identical to the use of the protocol field in the IPv4 header

Unselect

Indicates the version of the Internet Protocol being used

Unselect

Provide differentiated services based on the nature of data being transmitted

Unselect

This field is used to prevent packets from being circularly routed in a network

Unselect

Indicates that a packet belongs to a specific sequence of traffic between a source and destination

Unselect

Next Header
Indicates the length of the packet

Unselect

This field is identical to the use of the protocol field in the IPv4 header

Unselect

Indicates the version of the Internet Protocol being used

Unselect

Provide differentiated services based on the nature of data being transmitted

Unselect

This field is used to prevent packets from being circularly routed in a network

Unselect

Indicates that a packet belongs to a specific sequence of traffic between a source and destination

Unselect

Hop Limit
Indicates the length of the packet

Unselect

This field is identical to the use of the protocol field in the IPv4 header

Unselect

Indicates the version of the Internet Protocol being used

Unselect

Provide differentiated services based on the nature of data being transmitted

Unselect

This field is used to prevent packets from being circularly routed in a network

Unselect

Indicates that a packet belongs to a specific sequence of traffic between a source and destination

Unselect

11. IPv6 supports a mechanism known as stateless auto-configuration where a node coming online can be identified directly by its link-local address
12. The link-local address in an IPv6 is based on which address?
13. Which method is used by IPv6, where machines can automatically determine their default router and hosts can find each other
14. IPv6 addresses are expressed in a string of eight hexadecimal values as shown below
x:x:x:x:x:x:x:x
What is the length of each hexadecimal value?
15. More than one double colons can be used in an IPv6 address to compress its length
16. The compressed form of an IPV6 address 1020:0:0:0:6:700:200B:217A can be written as
17. An IPv6 multicast address FF01:0:0:0:0:0:0:101 can be written in its compressed form as FF01::101

18. What are the two forms of address autoconfiguration in IPv6?

 
19. The IPv6 address size increases the overall IP packet header size from the current 24 bytes to how many bytes?
20. 1060::1245::4221 is a valid IPv6 address
21. An IPv4 address 10.0.0.1 can be written in IPv6 as
22. What are some of the major changes ICMPv6 makes to ICMPv4?
23. What is an IPv6 standard address for loopback traffic, similar to 127.0.0.1 for IPv4?
24. Which address stays on the local subnet or link and routers are expressly forbidden from forwarding traffic sourced from or destined to this address?
25. Why Header Checksum is not incorporated in the IPv6 header, even though it is used in the IPv4 header?
26. What are the main IPv6 transition mechanisms?
27. What is the minimum MTU value, which defines the largest packet that can be sent with a guarantee that it won't be fragmented, for an IPv6 link?
28. IPv6 includes security features in its specifications such as payload encryption and authentication of the source of the communication
29. Match IPsec mode with the correct description
Tunnel mode
The protocol is just applied to the transport layer

Unselect

This protocol mode is applied to entire packet

Unselect

Transport mode
The protocol is just applied to the transport layer

Unselect

This protocol mode is applied to entire packet

Unselect

30. What are some of the tunneling methods of carrying IPv6 over existing IPv4 networks?
31. When a node needs to request an IPv6 address from a DHCP server, it takes an exchange of four messages from client to server. List the process in the correct order
  • Advertise
  • Reply
  • Solicit
  • Request
32. What are some of the design goals of IPv6 stateless autoconfiguration?
33. What are the two modes for IPv6 mobility support for communication between a mobile node and a correspondent node?
34.
What are the three risks associated with an IPv6 transition?

35. What are the two IPv6 extension headers that can be used for QoS implementation?
36. What are the few differences in IPv6 EIGRP implementation compared to IPv4?
37. List some of the functions offered by Neighbour Discovery Protocol (NDP) in an IPV6
38. Which of the following statement is true regarding an IPv6 address?
39. Which of the following statements about IPv6 are incorrect?
40. An IPv6 address is 128 bits long and is represented in decimal form
41. A router solicitation is sent out using which multicast address?
42. There is only one loopback address written as ::1, in an IPv6 unicast addressing
43. In which format a subnet mask is written with an IPV6 address?
44. Match an IPv6 multicast address with it's function
FF02::1
All nodes address

Unselect

Add routers address

Unselect

Solicited node address

Unselect

FF02::2
All nodes address

Unselect

Add routers address

Unselect

Solicited node address

Unselect

FF02::1:FF
All nodes address

Unselect

Add routers address

Unselect

Solicited node address

Unselect

45. Which command can be used on Windows PC to check an IPv6 address?

46. IPv6 addresses have a DNS record type of AAAA
47. Without DHCP, IPv6 cannot assign an IP address automatically
48. When forwarding an IPv6 packet, IPv6 discard the packet when the Hop Limit is?
49. Which IPv4 headers fields were dropped when IPv6 was created?
50. Match the IPv6 autoconfiguration type with the correct statement
Stateless autoconfiguration
Uses neighbour discovery mechanism to dynamically assign IPv6 addresses

Unselect

Uses DHCPv6 to assign IPv6 addresses

Unselect

Stateful autoconfiguration
Uses neighbour discovery mechanism to dynamically assign IPv6 addresses

Unselect

Uses DHCPv6 to assign IPv6 addresses

Unselect


 

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