Information Technology Reference
In-Depth Information
11.
B. IPv6 increases the address space, which allows globally unique IP addresses.
Broadcasts are no longer used.
12.
C
13.
D. All answers are correct.
Q&A
1.
False. OSPFv3 supports IPv6. OSPFv2 is used in IPv4 networks.
2.
Tr ue
3.
ARP
4.
16
5.
0110. The first field of the IPv6 header is the version field. It is set to binary 0110 (6).
6.
False
7.
0xFF (1111 1111 binary)
8.
FE8/10
9.
Tr ue
10.
Ve r s i o n , Tr a f f i c C l a s s , F l o w L a b e l , P a y l o a d L e n g t h , Ne x t H e a d e r, H o p L i m i t , I P v 6
Source Address, IPv6 Destination Address
11.
B. IPv6 address types are unicast, anycast, and multicast.
12.
Tr ue. B oth compre s s ed repre s entat ion s are valid.
13.
2001:1:0:ab0::/64
14.
32
15.
It is a multicast address. All IPv6 multicast addresses begin with hexadecimal FF.
16.
C. Answers A, B, and D are incorrect because 0100 does not compact to 01. Answer B
is also incorrect because 0010 does not compact to 001.
17.
A. The dual-stack backbone routers handle packets between IPv4 hosts and IPv6
hosts.
18.
B. DNS indicates which stack to use. DNS A records return IPv4 addresses. DNS
AAAA records return IPv6 addresses.
19.
B
20.
A and D
21.
D. IPv4 packets can be fragmented by the sending host and routers. IPv6 packets are
fragmented by the sending host only.
22.
A. Anycast addresses reach the nearest destination in a group of hosts.
