IPv6 Fundamentals
Your device is using IEEE EUI-64 to auto generate its IPv6 interface identifier. The interface MAC address is 00:90:27:17:FC:0F. Which EUI-64 address is correct based on the MAC address provided?
0290:27FF:FE17:FC:0F
Which ICMPv6 messages are used when you want to test basic IPv6 reach-ability with a ping?
129. 128.
What is the current IPv6 global unicast range?
2000::/3 to 3fff::/3.
Identify valid IPv6 addresses.
2001:db8:10f:1::acd. 2001:0db8:010f:0001:0000:0000:0000:0acd.
Which ICMPv6 packet type is used to identify that the hop limit has been exceeded for a packet?
3.
Approximately how many /48 networks are available in the current IPv6 global unicast space?
35 Trillion.
How large is a basic IPv6 header?
40 bytes.
Which IPv6 address type is used for one-to-nearest communication?
Anycast.
Which statements describe DAD (Duplicate Address Detection)?
Determines if an IPv6 address is unique in a local area network. Used when an address is manually configured or auto-configured. Used for link-local, unique local, and global IPv6 addresses.
What type of IPv6 unicast address is used on the internet?
Global.
Identify the reasons we need IPv6.
IPv4 networks do not provide true end-to-end connectivity. The IPv4 addressing space has been exhausted. IPv4 addressing was not deployed in an efficient hierarchical manner.
Which statement describes IPv6 Path MTU Discovery?
It is used to determine the maximum packet size that can be sent to a specific destination. It uses ICMP type 2 error messages.
Which IPv6 messages are used to determine the MAC address of a known IPv6 address?
Neighbor advertisement. Neighbor solicitation.
Which field is used in an IPv6 header to identify that an extension header follows?
Next Header.
What are IPv6 multicast addresses used for?
One-to-many communication.
What are the four primary message types used with DHCPv6?
Reply. Advertise. Request. Solicit.
Which IPv6 messages are used for stateless IPv6 address allocation?
Router solicitation. Router advertisement.
When using anycast addresses as the destination of a packet, which device is responsible for determining the nearest node that is offering the service you are trying to access?
Router.
On which devices would you typically manually configure the IPv6 addresses?
Routers. Switches. Servers.
Which benefit of IPv6 ensures that packet processing is more efficient in IPv6 networks?
Simple header.
In which situations would a client contact a DHCPv6 server for addressing information?
The client does not receive a router advertisement. The client receives a router advertisement with other configuration flags set. The client receives a router advertisement which indicates a DHCPv6 server should be used.
Which statement describes link-local IPv6 unicast addresses?
Their current range is from FE80::/10 to FEBF::/10. They are used for local link communication. They are generated by every IPv6 enabled interface.
Which statements describe unique local IPv6 unicast addressing?
They are not routable on the internet. Their current range is from FC00::/7 to FDFF::/7
What is the destination address of a router advertisement?
ff02::1
Identify the solicited node multicast address for the following IPv6 address: 2001:db8:1001:000f:fe17:fc0f.
ff02::1:ff17:fc0f.
