Volume 1 - Chapter 26: IPv6 Addressing and Subnetting

Question 1

IPv6 addresses that are assigned to organizations and are considered to be globally unique are referred to as?

Answer 1

Global Unicast Addresses.

Question 2

A IPv6 global unicast address is similar to an IPv4 ___ address.

Answer 2

Public.

Question 3

IPv6 addresses that are available to any non-internet connected network, or are translated to global unicast addresses are referred to as?

Answer 3

Unique Local Addresses.

Question 4

A IPv6 unique local address is similar to an IPv4 ___ address.

Answer 4

Private

Question 5

Which RFC defines the unique local IP address range?

Answer 5

RFC 4193

Question 6

Describe an IPv6 Global Routing Prefix.

Answer 6

A reserved block of IP addresses for a specific company

Question 7

An IPv6 Global Routing Prefix is similar to an IPv4 ___.

Answer 7

CDIR block.

Question 8

What is the prefix for global unicast addresses?

Answer 8

2000::/3

Question 9

What is the range of IPv6 addresses that fall within the range of global unicast.

Answer 9

All addresses that begin with a hex 2 or 3. For example:

2001::
3223::
2222::

Question 10

What is the range of IPv6 addresses that fall within the range of unique local?

Answer 10

All addresses that begin with hex FD. For example:

FD00::
FDFD::
FD11::

Question 11

What is the range of IPv6 addresses that fall within the range of multicast?

Answer 11

All addresses that begin with hex FF. For example:

FF00::
FFFF::
FF11::

Question 12

What is the range of IPv6 addresses that fall within the range of link local?

Answer 12

All addresses which their first 4 hex numbers are FE80. For example:

FE80:1111::
FE80:FE80::
FE80:0:0::

Question 13

What part of the IPv6 address identifies the specific host?

Answer 13

The Interface ID (IID).

Question 14

What part of the IPv6 address identifies the network portion?

Answer 14

The Global Routing Prefix.

Question 15

What part of the IPv6 address identifies the subnet portion?

Answer 15

The Subnet ID.

Question 16

What is the recommend IID length according to multiple RFCs?

Answer 16

64 bits

Question 17

Which IPv6 address is similar to the IPv4 subnet address and should not be assigned to any host?

Answer 17

The subnet router anycast address

Question 18

Describe structure of an IPv6 unique local address

Answer 18

First 8 bits: FD
Next 40 bits: Randomly chosen by network administrator
Next 16 bits: Subnet ID
Next 64 bits: Interface ID

Question 19

What RFC strongly recommends using a random Global ID for your unique local address?

Answer 19

RFC 4193