IPv6 Basics Flashcards

1
Q

Configure an IPv6 address on an interface
R1(config-if)# […]

A

ipv6 address address/prefix-length

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2
Q

Enable IPv6 routing on the router.
R1(config)# […]

A

ipv6 unicast-routing

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3
Q

Typically, IPv6 subnets use a […] prefix length.

A

/64

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4
Q

Typically, an enterprise requesting IPv6 addresses will receive a [prefix length] block of addresses.

A

/48

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5
Q

To shorten an IPv6 address, you can replace consecutive quartets of all 0s with a […].

A

double colon (::)
*can only do this once per address

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6
Q

To shorten an IPv6 address, you can remove […] from each quartet.

A

leading 0s

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7
Q

An IPv6 address contains […] hexadecimal quartets.

A

8

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8
Q

An IPv6 address is […] bits in length.

A

128

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9
Q

Which RIR controls IP address assignments in Europe, the Middle East, and parts of Central Asia?

A

RIPE NCC

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10
Q

Which RIR controls IP address assignments in Latin America and the Caribbean?

A

LACNIC

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11
Q

Which RIR controls IP address assignments in Canada, many Caribbean and North Atlantic islands, and the US?

A

ARIN

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12
Q

Which RIR controls IP address assignments in Asia-Pacific?

A

APNIC

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13
Q

Which RIR controls IP address assignments in Africa?

A

AFRINIC

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14
Q

What is the IPv6 loopback address?

A

::1

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15
Q

What is the IPv6 unspecified address?

A

::

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16
Q

Configure an IPv6 anycast address:
R1(config-if)# […]

A

ipv6 address address/prefix-length anycast

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17
Q

IPv6 multicast scope:
FF0E = […]

A

Global

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18
Q

IPv6 multicast scope:
[…] = Global

A

FF0E

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19
Q

IPv6 multicast scope:
FF08 = […]

A

Organization-local

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20
Q

IPv6 multicast scope:
[…] = Organization-local

A

FF08

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21
Q

IPv6 multicast scope:
FF05 = […]

A

Site-local

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22
Q

IPv6 multicast scope:
[…] = Site-local

A

FF05

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23
Q

IPv6 multicast scope:
FF02 = […]

A

Link-local

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24
Q

IPv6 multicast scope:
[…] = Link-local

A

FF02

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25
IPv6 multicast scope: FF01 = [...]
Interface-local
26
IPv6 multicast scope: [...] = Interface-local
FF01
27
IPv4 multicast address: 224.0.0.1 = [...]
All nodes
28
IPv4 multicast address: [...] = All nodes
224.0.0.1
29
IPv4 multicast address: 224.0.0.2 = [...]
All routers
30
IPv4 multicast address: [...] = All routers
224.0.0.2
31
IPv4 multicast address: 224.0.0.5 = [...]
All OSPF routers
32
IPv4 multicast address: [...] = All OSPF routers
224.0.0.5
33
IPv4 multicast address: 224.0.0.6 = [...]
All OSPF DRs/BDRs
34
IPv4 multicast address: [...] = All OSPF DRs/BDRs
224.0.0.6
35
IPv4 multicast address: 224.0.0.9 = [...]
All RIP routers
36
IPv4 multicast address: [...] = All RIP routers
224.0.0.9
37
IPv4 multicast address: 224.0.0.10 = [...]
All EIGRP routers
38
IPv4 multicast address: [...] = All EIGRP routers
224.0.0.10
39
IPv6 multicast address: FF02::A = [...]
All EIGRP routers
40
IPv6 multicast address: [...] = All EIGRP routers
FF02::A
41
IPv6 multicast address: FF02::9 = [...]
All RIP routers
42
IPv6 multicast address: [...] = All RIP routers
FF02::9
43
IPv6 multicast address: FF02::6 = [...]
All OSPF DRs/BDRs
44
IPv6 multicast address: [...] = All OSPF DRs/BDRs
FF02::6
45
IPv6 multicast address: FF02::5 = [...]
All OSPF routers
46
IPv6 multicast address: [...] = All OSPF routers
FF02::5
47
IPv6 multicast address: FF02::2 = [...]
All routers
48
IPv6 multicast address: [...] = All routers
FF02::2
49
IPv6 multicast address: FF02::1 = [...]
All nodes
50
IPv6 multicast address: [...] = All nodes
FF02::1
51
Does IPv6 use broadcast messages?
No
52
What IPv6 address range is reserved for multicast addresses?
FF00::/8
53
[...]cast addresses provide one-to-one-of-many communication.
Any
54
[...]cast addresses provide one-to-many communication.
Multi
55
[...]cast addresses provide one-to-all communication.
Broad
56
[...]cast addresses provide one-to-one communication.
Uni
57
IPv6 link-local addresses begin with [four hexadecimal characters]
FE80
58
How is the interface ID of an IPv6 link-local address generated?
EUI-64
59
What IPv6 address block is reserved for link-local addresses?
FE80::/10
60
Enable IPv6 on an interface without manually configuring an IPv6 address: R1(config-if)# [...]
ipv6 enable
61
What is the size of the 'global ID' of an IPv6 unique local address?
40 bits
62
Four sections of an IPv6 'unique local' address: Hexadecimal FD (indicates a unique local address) Global ID Subnet identifier [...]
Interface identifier
63
Four sections of an IPv6 'unique local' address: Hexadecimal FD (indicates a unique local address) Global ID [...] Interface identifier
Subnet identifier
64
Four sections of an IPv6 'unique local' address: Hexadecimal FD (indicates a unique local address) [...] Subnet identifier Interface identifier
Global ID
65
Four sections of an IPv6 'unique local' address: [...] Global ID Subnet identifier Interface identifier
Hexadecimal FD (indicates a unique local address)
66
IPv6 unique local addresses begin with [2 hexadecimal digits].
FD
67
What IPv6 address block is reserved for unique local addresses?
FC00::/7
68
IPv6 [...] addresses are like private IPv4 addresses.
unique local
69
What is the typical size of the 'interface identifier' of an IPv6 global unicast address?
64 bits
70
What is the typical size of the 'subnet identifier' of an IPv6 global unicast address?
16 bits
71
What is the typical size of the 'global routing prefix' of an IPv6 global unicast address?
48 bits
72
What are the three sections of an IPv6 global unicast address? Global routing prefix Subnet identifier [...]
Interface identifier
73
What are the three sections of an IPv6 global unicast address? Global routing prefix [...] Interface identifier
Subnet identifier
74
What are the three sections of an IPv6 global unicast address? [...] Subnet identifier Interface identifier
Global routing prefix
75
The IPv6 global unicast range was originally defined as [...]
2000::/3 (now it includes all addresses which aren't reserved for other purposes)
76
IPv6 [...] addresses are like public IPv4 addresses.
global unicast
77
If the U/L bit of a MAC address is 1, it is a [...]AA.
L
78
If the U/L bit of a MAC address is [...], it is an LAA.
1
79
If the U/L bit of a MAC address is 0, it is a [...]AA.
U
80
If the U/L bit of a MAC address is [...], it is a UAA.
0
81
What is the 7th bit of a MAC address called?
U/L bit (Universal/Local bit)
82
MAC addresses: What does LAA stand for?
Locally Administered Address
83
MAC addresses: What does UAA stand for?
Universally Administered Address
84
Configure an IPv6 address using EUI-64 R1(config-if)# [...]
ipv6 address prefix/prefix-length eui-64
85
3 steps to convert a MAC address into an EUI-64 identifier: 1. Divide the MAC address in half 2. Insert FFFE in the middle 3. [...]
Invert the 7th bit
86
3 steps to convert a MAC address into an EUI-64 identifier: 1. Divide the MAC address in half 2. [...] 3. Invert the 7th bit
Insert FFFE in the middle
87
3 steps to convert a MAC address into an EUI-64 identifier: 1. [...] 2. Insert FFFE in the middle 3. Invert the 7th bit
Divide the MAC address in half
88
What does EUI stand for?
Extended Unique Identifier
89
To use an IPv6 link-local address as a next hop, you must configure a [...] static route.
fully specified
90
In IPv6, you can't use [...] static routes if the interface is an Ethernet interface.
directly attached (the command will work, but the route will not)
91
Configure an IPv6 fully specified static route: R1(config)# [...]
ipv6 route destination/prefix-length exit-interface next-hop
92
Configure an IPv6 recursive static route: R1(config)# [...]
ipv6 route destination/prefix-length next-hop
93
Configure an IPv6 directly attached static route: R1(config)# [...]
ipv6 route destination/prefix-length exit-interface
94
In a [...] static route, the exit interface and next hop are both specified.
fully specified
95
In a recursive static route, the [...] is specified.
next hop (only)
96
In a [...] static route, the next hop (only) is specified.
recursive
97
In a [...] static route, the exit interface (only) is specified.
directly attached
98
In a directly attached static route, the [...] is specified.
exit interface (only)
99
Are routes for IPv6 link-local addresses added to the routing table?
No
100
To perform DAD, which address does a device send an NS to?
Its own solicited-node multicast address
101
Which NDP messages does DAD use?
NS/NA
102
[...] allows hosts to check if other devices on the local link are using the same IPv6 address.
Duplicate Address Detection (DAD)
103
What does DAD stand for?
Duplicate Address Detection
104
When using SLAAC, how is the interface ID generated?
EUI-64, or randomly
105
Which NDP messages allow a device to learn the network prefix for SLAAC?
RS/RA
106
What does SLAAC stand for?
Stateless Address Auto-configuration
107
NDP RA messages are sent to [destination IP]
FF02::1
108
NDP RS messages are sent to [destination IP]
FF02::2
109
What command is used to view the IPv6 equivalent of an ARP table? R1# [...]
show ipv6 neighbor
110
When trying to learn a MAC address, what destination IP address are NDP NS messages sent to?
The neighbor's solicited-node multicast address
111
NDP RA = ICMPv6 Type [...]
134
112
NDP [...] = ICMPv6 Type 134
RA
113
NDP RS = ICMPv6 Type [...]
133
114
NDP [...] = ICMPv6 Type 133
RS
115
NDP NA = ICMPv6 Type [...]
136
116
NDP [...] = ICMPv6 Type 136
NA
117
NDP NS = ICMPv6 Type [...]
135
118
NDP [...] = ICMPv6 Type 135
NS
119
What does the NDP 'RA' message stand for?
Router Advertisement
120
What does the NDP 'RS' message stand for?
Router Solicitation
121
What does the NDP 'NA' message stand for?
Neighbor Advertisement
122
What does the NDP 'NS' message stand for?
Neighbor Solicitation
123
Which protocol replaces ARP in IPv6?
NDP
124
What does NDP stand for?
Neighbor Discovery Protocol
125
How is an IPv6 solicited-node multicast address calculated from a unicast address? ff02::1:ff + [...]
Last 6 hex digits of unicast address
126
How is an IPv6 solicited-node multicast address calculated from a unicast address? [...] + Last 6 hex digits of unicast address
ff02::1:ff
127
Which IPv6 header field functions like the IPv4 TTL field?
Hop Limit
128
Which IPv6 header field indicates the encapsulated Layer 4 protocol?
Next Header
129
What is the length of the IPv6 header?
40 bytes
130
Which IPv6 header field indicates the length of the encapsulated Layer 4 segment?
Payload Length
131
Which IPv6 header field is used to identify specific traffic flows?
Flow Label
132
Which IPv6 header field is used for QoS?
Traffic Class
133
Which IPv6 header field indicates the version of IP?
Version