CCNP CCNP Multicast and IPv6

Question 1

What is the total length of an IPv6 address?

Accepted Answer

128 bits

Answer

IPv6 addresses are 128 bits long, written as eight groups of four hexadecimal digits separated by colons.

Question 2

Which IPv6 address prefix is used for link-local addresses?

Accepted Answer

FE80::/10

Answer

IPv6 link-local addresses always start with FE80::/10 and are automatically assigned to every IPv6-enabled interface for local segment communication.

Question 3

What IPv6 protocol replaces ARP for address resolution?

Accepted Answer

Neighbor Discovery Protocol (NDP)

Answer

NDP uses ICMPv6 Neighbor Solicitation and Neighbor Advertisement messages to resolve IPv6 addresses to MAC addresses, replacing ARP.

Question 4

Which ICMPv6 message type is sent by a host to discover routers on the local link?

Accepted Answer

Router Solicitation (Type 133)

Answer

A Router Solicitation (ICMPv6 Type 133) is sent by a host to the all-routers multicast address FF02::2 to discover available routers immediately.

Question 5

What is the IPv6 loopback address?

Accepted Answer

::1/128

Answer

The IPv6 loopback address is ::1/128, which is the compressed notation for 0000:0000:0000:0000:0000:0000:0000:0001.

CCNP - Cisco Certified Network Professional Practice Test