CCST IPv4 vs. IPv6 Addressing 2

Question 1

How many bits are in an IPv6 address compared to an IPv4 address?

Accepted Answer

IPv6: 128 bits, IPv4: 32 bits

Answer

IPv6: 64 bits, IPv4: 32 bits

Answer

IPv6: 256 bits, IPv4: 64 bits

Answer

IPv6: 128 bits, IPv4: 64 bits

Question 2

Which transition mechanism encapsulates IPv6 packets within IPv4 packets?

Accepted Answer

Tunneling

Answer

NAT64

Answer

Dual stack

Answer

DNS64

Question 3

What type of IPv6 address begins with fe80::/10 and is used for single-segment communication?

Accepted Answer

Link-local

Answer

Global unicast

Answer

Multicast

Answer

Anycast

Question 4

Which protocol replaced ARP in IPv6 for address resolution?

Accepted Answer

NDP (Neighbor Discovery Protocol)

Answer

DHCPv6

Answer

ICMPv4

Answer

IGMP

Question 5

What advantage does IPv6 provide regarding IPsec support?

Accepted Answer

IPsec is a mandatory part of the IPv6 specification while optional in IPv4

Answer

IPv6 does not support IPsec

Answer

IPv6 uses different encryption than IPsec

Answer

No difference between IPv4 and IPv6

Question 6

How does SLAAC in IPv6 differ from DHCP in IPv4?

Accepted Answer

SLAAC allows devices to self-configure addresses using router-advertised prefixes without a central server

Answer

SLAAC requires a central server

Answer

SLAAC only works on wireless

Answer

No functional difference