To enable OSPFv3, which of the following would you use?
Answer: A
To enable OSPFv3, you enable the protocol as with RIPng. The command string is ipv6 ospf
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To enable RIPng, which of the following would you use?
Answer: B
It's pretty simple to enable RIPng for IPv6. You configure it right on the interface where you want RIP to run with the ipv6 router rip number command.
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What multicast addresses does RIPng use?
Answer: B
RIPng uses the multicast IPv6 address of FF02::9. If you remember the multicast addresses for IPv4, the numbers at the end of each IPv6 address are the same.
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Which of the following is true when describing a unique local address?
Answer: D
These addresses are meant for nonrouting purposes like link-local, but they are almost globally unique so it is unlikely they will have an address overlap. Unique local addresses were designed as a replacement for site-local addresses.
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What two multicast addresses does OSPFv3 use?
1.FF02::A
2.FF02::9
3.FF02::5
4.FF02::6
Answer: D
Adjacencies and next-hop attributes now use link-local addresses, and OSPFv3 still uses multicast traffic to send its updates and acknowledgments with the addresses FF02::5 for OSPF routers and FF02::6 for OSPF designated routers. These are the replacements for 224.0.0.5 and 224.0.0.6, respectively.
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Which of the following is true when describing an anycast address?
Answer: C
Anycast addresses identify multiple interfaces, which is the same as multicast; however, the big difference is that the anycast packet is only delivered to one address, the first one it finds defined in the terms of routing distance. This address can also be called one-to-one-of-many.
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Which statement(s) about IPv4 and IPv6 addresses are true?
1.An IPv6 address is 32 bits long, represented in hexidecimal.
2.An IPv6 address is 128 bits long, represented in decimal.
3.An IPv4 address is 32 bits long, represented in decimal.
4.An IPv6 address is 128 bits long, represented in hexidecimal.
Answer: C
IPv4 addresses are 32 bits long and are represented in decimal format. IPv6 addresses are 128 bits long and represented in hexadecimal format.
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Which of the following is true when describing a multicast address?
Answer: B
Packets addressed to a multicast address are delivered to all interfaces identified by the multicast address, the same as in IPv4. It is also called a one-to-many address. You can always tell a multicast address in IPv6 because multicast addresses always start with FF.
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Which of the following is true when describing a unicast address?
Answer: A
Packets addressed to a unicast address are delivered to a single interface. For load balancing, multiple interfaces can use the same address.
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Which of the following is true when describing a global unicast address?
Answer: B
Unlike unicast addresses, global unicast addresses are meant to be routed.
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