ITN Module 12 Check Your Understanding Questions

What is the most important motivating factor for moving to IPv6?

• Depletion of IPv4 addresses

• IPv6 addresses that are easier to work with

• Better security with IPv6

• Better performance with IPv6

True or False: 4 out of 5 RIRs no longer have enough IPv4 addresses to allocate to customers on a regular basis.

• True

• false

Which of the following techniques use native IPv6 connectivity?

• Dual stack

• Tunneling

• Translation

• All of the above

What is the recommended prefix length for most IPv6 subnets?

• /128

• /64

• /32

• /48

Which part of a GUA is assigned by the ISP?

• Global routing prefix

• Global routing prefix and subnet ID

• Prefix

• RIR prefix

Which type of IPv6 unicast address is not routable between networks?

• Unique local address

• GUA

• Embedded IPv4 address

• LLA

True or false? The Subnet ID field in an GUA must borrow bits from the interface ID.

• True

• False

What type of IPv6 address begins with fe80?

• GUA

• LLA

• multicast address

• None. An IPv6 address must begin with 2001

True or false? RA messages are sent to all IPv6 routers by hosts requesting addressing information.

• True

• False

Which dynamic addressing method for GUAs is the one where devices rely solely on the contents of the RA message for their addressing information?

• Method 1: SLAAC

• Method 3: Stateful DHCPv6

• Method 2: SLAAC and stateless DHCPv6