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Cisco - Implementing and Administrating Cisco Solution > Introducing Basic IPv6 > Flashcards

Introducing Basic IPv6 Flashcards

1
Q

In which mechanism can a device be configured with a private IPv4 address but communicate on the internet using a globally routable IPv4 address?

A. NAT

B. VLSM

C. ARP

D. multihoming

A

A. NAT

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2
Q

Which feature does IPv6 support for securely connecting to networks?

A. NAT

B. VLSM

C. IPsec

D. multihoming

A

C. IPsec

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3
Q

In which type of IPv6 address does the sender send the traffic to the nearest of multiple nodes, all of which behave in the same way as other nodes that are identified by the same destination address?

A. unicast

B. anycast

C. broadcast

D. multicast

E. loopback

A

B. anycast

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4
Q

You want to ping the loopback address of your IPv6 local host. Which command will you enter?

A. ping 127.0.0.1

B. ping 0.0.0.0

C. ping ::1

D. ping fe80::1

A

C. ping ::1

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5
Q

Which two statements describe the characteristics of IPv6 unicast addressing? (Choose two.)

A. Global addresses start with 2000::/3.

B. Link-local addresses start with ff00::/10.

C. Global addresses start with 2000::/.

D. Link-local addresses start with fe00:/12.

G. There is only one loopback address and it is ::1.

A

A. Global addresses start with 2000::/3.

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6
Q

Which two statements describe the characteristics of IPv6 unicast addressing? (Choose two.)

A. Global addresses start with 2000::/3.

B. Link-local addresses start with ff00::/10.

C. Global addresses start with 2000::/.

D. Link-local addresses start with fe00:/12.

E. There is only one loopback address and it is ::1.

A

A. Global addresses start with 2000::/3.

E. There is only one loopback address and it is ::1.

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7
Q

Which address bits uniquely identify a group ID in the IPv6 multicast address?

A. first 64 bits

B. first 8 bits

C. last 112 bits

D. last 64

E. last 48

F. last 116 bits

A

C. last 112 bits

The correct answer is “last 112 bits.” An IPv6 multicast address defines a group of devices known as a multicast group. All IPv6 multicast addresses use the prefix ff00::/8. The 8-bit prefix is followed by 4 bits allocated for flags and a 4-bit scope field, which defines the range to which routers can forward the multicast packet. The remaining 112 bits represent the group ID and identifies the packet destinations. Some common group ID values are ::1, identifying all IPv6 devices within the scope, or ::2, which identifies all IPv6 routers within the scope.

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8
Q

Which new field has a length of 20 bits and is used to mark individual traffic flows with unique values?

A. Flow Label

B. Version

C. Traffic Class

B. Payload Length

A

A. Flow Label

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9
Q

Which two ICMPv6 types are used for neighbor discovery? (Choose two.)

A. ICMPv6 Type 135

B. ICMPv6 Type 136

C. ICMPv6 Type 129

D. ICMPv6 Type 133

E. ICMPv6 Type 134

A

A. ICMPv6 Type 135

B. ICMPv6 Type 136

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10
Q

Which protocol in IPv4 performs the same functions as neighbor discovery in IPv6?

A. ARP

B. ICMP

C. DHCP

D. RIP

A

A. ARP

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11
Q

Which three statements about assigning IPv6 addresses to hosts are accurate? (Choose three.)

A. The entire IPv6 address cannot be manually configured.

B. The host identifier portion of the address cannot be computed automatically.

C. The host identifier portion of the address can be computed automatically using the EUI-64 interface ID.

D. A node on a link can automatically configure its entire global IPv6 address by appending its interface identifier to a prefix that it learns from a router advertisement message.

E. Stateless DHCPv6 keeps a record of which addresses are assigned to which hosts.

F. Stateful DHCPv6 keeps a record of which addresses are assigned to which hosts.

A

C. The host identifier portion of the address can be computed automatically using the EUI-64 interface ID.

D. A node on a link can automatically configure its entire global IPv6 address by appending its interface identifier to a prefix that it learns from a router advertisement message.

F. Stateful DHCPv6 keeps a record of which addresses are assigned to which hosts.

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12
Q

Which two commands can you use on Cisco network device to test and troubleshoot IPv6 connectivity? (Choose two.)

A. ping

B. traceroute

C. show arp

D. show ip arp

E. arp -a

A

A. ping

B. traceroute

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13
Q

Which statement is correct about the EUI-64 address format of the interface ID for stateless autoconfiguration that is used by Cisco?

A. It is the MAC address plus the Site-Level Aggregator.

B. It is the MAC address plus the ISO OUI.

C. It expands the 48-bit MAC address to 64 bits by inserting FFFE into the middle 16 bits and then inverting the 7th bit in the first octet.

D. It does not follow IEEE standards for uniqueness of the address.

E. It is only used by Cisco.

A

C. It expands the 48-bit MAC address to 64 bits by inserting FFFE into the middle 16 bits and then inverting the 7th bit in the first octet.

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14
Q

Which address type is not supported in IPv6?

A. unicast

B. multicast

C. anycast

D. broadcast

A

D. broadcast

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15
Q

Which command verifies end-to-end transport layer connectivity for HTTP from a PC over an IPv6 path?

A. ping IPv6_address 80

B. telnet IPv4_address 80

C. telnet IPv6_address 80

D. tracert IPv6_address

A

C. telnet IPv6_address 80

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16
Q

What are four problems with IPv4 addressing workarounds? (Choose four.)

A. NAT breaks the end-to-end model of IP.

B. DHCP breaks the end-to-end model of IP.

C. NAT inhibits end-to-end network security.

D. VLSM inhibits end-to-end network security.

E. Some applications are not NAT-friendly.

F. Some applications are NAT-friendly.

G. The merging of private networks is difficult if overlapping IPv4 address ranges are used.

A

A. NAT breaks the end-to-end model of IP.

E. Some applications are not NAT-friendly.

C. NAT inhibits end-to-end network security.

G. The merging of private networks is difficult if overlapping IPv4 address ranges are used.

17
Q

What are four benefits of IPv6 over IPv4? (Choose four.)

A. larger address space

B. smaller address space

C. complex header

D. simpler header

E. mobility

F. transition richness

G. TCP and UDP included in the basic header

A

A. larger address space

D. simpler header

E. mobility

F. transition richness

18
Q

Which two ICMPv6 types are used for testing IPv6 reachability? (Choose two.)

A. ICMPv6 type 1

B. ICMPv6 type 128

C. ICMPv6 type 129

D. ICMPv6 type 135

E. ICMPv6 type 136

A

B. ICMPv6 type 128

C. ICMPv6 type 129

19
Q

What is the solicited-node multicast IPv6 address for 2001:db8:1001:f:2c0:10ff:fe17:fc0f?

A. ff02:0000:0000:0000:0000:0001:ff17:fc0f

B. 2001:0000:0000:0000:0000:0001:ff17:fc0f

C. ff02:0000:0000:0000:0000:0001:fe17:fc0f

D. ff02:0000:0000:0000:0000:10ff:fe17:fc0f

A

A. ff02:0000:0000:0000:0000:0001:ff17:fc0f

20
Q

What is the range for IPv6 link-local addresses?

A. fe80::/10

B. fc00::/7

C. fc00::/8

D. fd00::/8

A

A. fe80::/10

21
Q

What is the corresponding MAC address for the solicited node multicast address ff02:0000:0000:0000:0000:0001:ff17:fc0f?

A. 33-33-33-17-fc-0f

B. 00-00-33-17-fc-0f

C. 33-33-ff-17-fc-0f

D. ff-02-ff-17-fc-0f

A

C. 33-33-ff-17-fc-0f

22
Q

Which Cisco IOS global configuration command is needed to enable IPv6 routing on routers?

A. ipv6 unicast-routing

B. ipv6 routing

C. enable ipv6-routing

D. ipv6 address

A

A. ipv6 unicast-routing

23
Q

How does the MAC address 00a1-6789-abcd translate into the right-most 64 bits of the IPv6 address when EUI-64 is used?

A. 01a1:67ff:fe89:abcd

B. 01a1:67ee:ee89:abcd

C. 02a1:67ff:ff89:abcd

D. 02a1:67ff:fe89:abcd

A

D. 02a1:67ff:fe89:abcd

24
Q

Which three options are valid representations of the IPv6 address 2001:db8:2bc5:0000:0000:087c:0000:000a? (Choose three.)

A. 2001:db8:2bc5::087c::000a

B. 2001:db8:2bc5::87c:0:a

C. 2001:db8:2bc5::087c:0000:000a

D. 2001:db8:2bc5:0:0:87c::a

E. 2001:db8:2bc5::087c:a

A

B. 2001:db8:2bc5::87c:0:a

C. 2001:db8:2bc5::087c:0000:000a

D. 2001:db8:2bc5:0:0:87c::a

25
Q

Which Cisco IOS interface command assigns a static IPv6 address using an EUI-64 interface ID?

A. ipv6 address 2001:db8:2222:7272::72/64

B. ipv6 address 2001:0db8:0:1::/64 eui-64

C. eui-64 address 2001:0db8:0:1::/64

D. ipv6 address 2001:0db8:0:1::0290:27ff:fe17:fc0f/64

A

B. ipv6 address 2001:0db8:0:1::/64 eui-64

26
Q

Which field determines the type of information that follows the basic IPv6 header?

A. Flow Label

B. Next Header

C. Traffic Class

D. Payload Length:

A

B. Next Header

27
Q

Which three mechanisms are used to extend the lifetime and usefulness of IPv4? (Choose three.)

A. CIDR

B. VLSM

C. NAT

D. DNS

E. IPv5

F. IPv6

A

A. CIDR

B. VLSM

C. NAT

28
Q

What is the range for IPv6 multicast addresses?

A. ff00::/8

B. fc00::/7

C. fe80/10

D. fd00::/8

A

A. ff00::/8

Cisco - Implementing and Administrating Cisco Solution (22 decks)

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