#14 - questions - IPv6

1. How is an EUI—64 format interface ID created from a 48-bit MAC address? A. By appending OXFF to the MAC address B. By prefixing the MAC address with 0xFFEE C. By prefixing the MAC address with OxFF and appending 0xFF to it D.By inserting 0xFFFE between the upper 3 bytes and the lower 3 bytes of the MAC address E. By prefixing the MAC address with 0xF and inserting 0xF after each of its first three bytes

1. How is an EUI—64 format interface ID created from a 48-bit MAC address? D.By inserting 0xFFFE between the upper 3 bytes and the lower 3 bytes of the MAC address D. The modified EUI-64 format interface identify is drived from the 48-bit link-layer (MAC) address by inserting the hexadecimal number FFFE between the upper 3 bytes (OUI field) and the lower 3 bytes (serial number) of the link layer address.

10. A host sends a router solicitation (RS) on the data link. What destination address is sent with this request? A. FF02::A B. FF02::9 C....(need C answer - and check all other answers) D, FF02::1 E. FF02::5

10. A host sends a router solicitation (RS) on the data link. What destination address is sent with this request? C....(need C answer - and check all other answers) C. A router solicitation is sent out using the all-routers multicast address of FF02::2. The router can send a router advertisement to all hosts using the FF02::1 multicast address.

11. What are two valid reasons for adopting IPv6 over IPv4? (Choose two.) A. No broadcast B. Change of source address in the IPv6 header C. Change of destination address in the IPv6 header D. No password required for Telnet access E. Autoconfiguration F. NAT

11. What are two valid reasons for adopting IPv6 over IPv4? (Choose two.) A. No broadcast E. Autoconfiguration A,E. IPv6 does not use broadcasts, and autoconfiguration is a feature of IPv6 that allows for hosts to automatically obtain an IPv6 address.

12. A host sends a type of NDP message providing the MAC address that was requested. Which type of NDP was sent? A. NA B. RS C. RA D. NS

12. A host sends a type of NDP message providing the MAC address that was requested. Which type of NDP was sent? A. NA A. The NDP neighbor advertisement (NA) contains the AC address. A neighbor solicitation (NS) was initially sent asking for the MAC address.

2. Which option is a valid IPv6 address? A. 2001:0000:130F::099a::123 B. 2002:7654zA1ADz61:81AF:CCC1 C. FECO:ABCD:WXYZ:0067::2A4 D. 2004:1:25A4:886F::1

2. Which option is a valid IPv6 address? D. 2004:1:25A4:886F::1 D. An IPv6 address is represented as eight groups of four hexidecimal digits, each group representing 16 bits (two octets). The groups are separated by colons (:). Option A has two double colons, B doesn't have 8 fields, and option C has invalid hex characters.

3. Which three statements about IPv6 prefixes are true? (Choose three.) a. FFOO:/8 is used for IPv6 multicast. b. FE80::/10 is used for link-local unicast. c.FC00::/7 is used in private networks. d. 2001::1/127 is used for loopback addresses. e. FE80::/8 is used for link-local unicast. F. FEC0::/10 is used for IPv6 broadcast.

3. Which three statements about IPv6 prefixes are true? (Choose three.) a. FFOO:/8 is used for IPv6 multicast. b. FE80::/10 is used for link-local unicast. c.FC00::/7 is used in private networks. A,B,C. This question is easier to answer if you just take out the wrong options. First, the loopback is only ::1,so that makes option D wrong. Link local is FE80::/10, not /8 and there are no broadcasts.

4. What are three approaches that are used when migrating from an IPv4 addressing scheme to an IPv6 scheme? (Choose three.) A. Enable dual-stack routing. B. Configure IPv6 directly. C. Configure IPv4 tunnels between IPv6 islands. D. Use proxying and translation to translate IPv6 packets into IPv4 packets. E. Statically map IPv4 addresses to IPv6 addresses. F. Use DHCPV6 to map IPv4 addresses to IPv6 addresses.

4. What are three approaches that are used when migrating from an IPv4 addressing scheme to an IPv6 scheme? (Choose three.) A. Enable dual-stack routing. C. Configure IPv4 tunnels between IPv6 islands. D. Use proxying and translation to translate IPv6 packets into IPv4 packets. A,C,D. Several methods are used in terms of migration, including tunneling, translators, and dual-stack. Tunnels are used to carry one protocl inside another while translators simply translate IPv6 packets into IPv4 packets. Dual-stack uses a combination of both native IPv4 and IPv6. With dual-stack, devices are able to run IPv4 and IPv6 together, and if IPv6 communication is possible, that is the preferred protocol. Hosts can simultaneously reach IPv4 and IPv6 content.

5. Which two statements about IPv6 router advertisement messages are true? (choose two) a. They use ICMPV6 type 134. b. The advertised prefix length must be 64 bits. c. The advertised prefix length must be 48 bits. d. They are sourced from the configured IPv6 interface address. E. Their destination is always the link-local address of the neighboring node.

5. Which two statements about IPv6 router advertisement messages are true? (choose two) a. They use ICMPV6 type 134. b. The advertised prefix length must be 64 bits. A.B. ICMPv6 router advertisements use type 134 and must be at least 64 bits in length.

6. Which of the following is true when describing an IPv6 anycast address? A. One-to—many communication model B. One—to-nearest communication model C. Any-to—many communication model D. A unique IPv6 address for each device in the group E. The same address for multiple devices in the group F. Delivery of packets to the group interface that is closest to the sending device

6. Which of the following is true when describing an IPv6 anycast address? B. One—to-nearest communication model C. Any-to—many communication model E. The same address for multiple devices in the group F. Delivery of packets to the group interface that is closest to the sending device B,E,F. Anycast addresses identify multiple interfaces, which is somewhat imilar to multicast addresses; however, the big difference is that the anycast packet is only delivered to one address, the first one it finds defined in terms of routing distances. This address can also be called one-to-one-of-many, or one-to-nearest.

7. You want to ping the loopback address of your IPv6 local host. What will you type? A. ping 127.0.0.1 B. ping 0.0.0.0 C. p1' ng :: D. trace 0.0.::

7. You want to ping the loopback address of your IPv6 local host. What will you type? C. p1' ng :: (fix this answer C. The loopback address with IPv4 is 127.0.0.1. With IPv6, that address is ::1.

8. What are three features of the IPv6 protocol? (Choose three.) A. Optional IPsec B. Autoconfiguration C. No broadcasts D. Complicated header E. Plug—and-play F. Checksums

8. What are three features of the IPv6 protocol? (Choose three.) B. Autoconfiguration C. No broadcasts E. Plug—and-play B,C,E. An important feature of IPv6 is that it allows the plug-and-play option to the network devices by allowing them to configure themselves independently. It is possible to plug a node into an IPv6 network without requiring any human intervention. IPv6 does not implement traditional IP broadcasts.

9. Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.) A. Global addresses start with 2000::/3. B. Link-local addresses start with FE00:/ 12. C. Link-local addresses start with FFOO::/10. D. There is only one loopback address and it is ::1. E. If a global address is assigned to an interface, then that is the only allowable address for the interface.

9. Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.) A. Global addresses start with 2000::/3. D. There is only one loopback address and it is ::1. A,D. The loopback address is ::1, link-local starts with FE80::/10, site-local addresses start with FEC0::/10, global addresses start with 200::/3, and multicast addresses start with FF00::/8.