Which statement(s) about IPv6 addresses are true?
1.Leading zeros are required.
2.Two colons (::) are used to represent successive hexadecimal fields of zeros.
3.Two colons (::) are used to separate fields.
4.A single interface will have multiple IPv6 addresses of different types.
Answer: B
In order to shorten the written length of an IPv6 address, successive fields of zeros may be replaced by double colons. In trying to shorten the address further, leading zeros may also be removed. Just as with IPv4, a single device's interface can have more than one address; with IPv6 there are more types of addresses and the same rule applies. There can be link-local, global unicast, and multicast addresses all assigned to the same interface.
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What multicast addresses does EIGRPv6 use?
Answer: A
EIGRPv6's multicast address stayed very near the same. In IPv4 it was 224.0.0.10; now it is FF02::A (A=10 in hexadecimal notation).
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To enable EIGRP, which of the following would you use?
1.Router1(config-if)# ipv6 ospf 10 area 0.0.0.0
2.Router1(config-if)# ipv6 router rip 1
3.Router1(config)# ipv6 router eigrp 10
4.Router1(config-rtr)# no shutdown
5.Router1(config-if)# ipv6 eigrp 10
Answer: B
Unlike RIPng and OSPFv3, you need to configure EIGRP both from global configuration mode and from interface mode, and you have to enable the command with the no shutdown command.
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Which of the following is true when describing a link-local address?
Answer: C
Link-local addresses are meant for throwing together a temporary LAN for meetings or a small LAN that is not going to be routed but needs to share and access files and services locally.
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You want to ping the loopback address of your local host(with IPv6). What will you type?
Answer: C
The loopback address with IPv4 is 127.0.0.1. With IPv6, that address is ::1.
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