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
Q

IPv6 multicast scope:
FF01 = […]

A

Interface-local

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26
Q

IPv6 multicast scope:
[…] = Interface-local

A

FF01

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27
Q

IPv4 multicast address:
224.0.0.1 = […]

A

All nodes

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28
Q

IPv4 multicast address:
[…] = All nodes

A

224.0.0.1

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29
Q

IPv4 multicast address:
224.0.0.2 = […]

A

All routers

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30
Q

IPv4 multicast address:
[…] = All routers

A

224.0.0.2

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31
Q

IPv4 multicast address:
224.0.0.5 = […]

A

All OSPF routers

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32
Q

IPv4 multicast address:
[…] = All OSPF routers

A

224.0.0.5

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33
Q

IPv4 multicast address:
224.0.0.6 = […]

A

All OSPF DRs/BDRs

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34
Q

IPv4 multicast address:
[…] = All OSPF DRs/BDRs

A

224.0.0.6

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35
Q

IPv4 multicast address:
224.0.0.9 = […]

A

All RIP routers

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36
Q

IPv4 multicast address:
[…] = All RIP routers

A

224.0.0.9

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37
Q

IPv4 multicast address:
224.0.0.10 = […]

A

All EIGRP routers

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38
Q

IPv4 multicast address:
[…] = All EIGRP routers

A

224.0.0.10

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39
Q

IPv6 multicast address:
FF02::A = […]

A

All EIGRP routers

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40
Q

IPv6 multicast address:
[…] = All EIGRP routers

A

FF02::A

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41
Q

IPv6 multicast address:
FF02::9 = […]

A

All RIP routers

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42
Q

IPv6 multicast address:
[…] = All RIP routers

A

FF02::9

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43
Q

IPv6 multicast address:
FF02::6 = […]

A

All OSPF DRs/BDRs

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44
Q

IPv6 multicast address:
[…] = All OSPF DRs/BDRs

A

FF02::6

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45
Q

IPv6 multicast address:
FF02::5 = […]

A

All OSPF routers

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46
Q

IPv6 multicast address:
[…] = All OSPF routers

A

FF02::5

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47
Q

IPv6 multicast address:
FF02::2 = […]

A

All routers

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48
Q

IPv6 multicast address:
[…] = All routers

A

FF02::2

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49
Q

IPv6 multicast address:
FF02::1 = […]

A

All nodes

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50
Q

IPv6 multicast address:
[…] = All nodes

A

FF02::1

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51
Q

Does IPv6 use broadcast messages?

A

No

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52
Q

What IPv6 address range is reserved for multicast addresses?

A

FF00::/8

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53
Q

[…]cast addresses provide one-to-one-of-many communication.

A

Any

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54
Q

[…]cast addresses provide one-to-many communication.

A

Multi

55
Q

[…]cast addresses provide one-to-all communication.

A

Broad

56
Q

[…]cast addresses provide one-to-one communication.

A

Uni

57
Q

IPv6 link-local addresses begin with [four hexadecimal characters]

A

FE80

58
Q

How is the interface ID of an IPv6 link-local address generated?

A

EUI-64

59
Q

What IPv6 address block is reserved for link-local addresses?

A

FE80::/10

60
Q

Enable IPv6 on an interface without manually configuring an IPv6 address:
R1(config-if)# […]

A

ipv6 enable

61
Q

What is the size of the ‘global ID’ of an IPv6 unique local address?

A

40 bits

62
Q

Four sections of an IPv6 ‘unique local’ address:
Hexadecimal FD (indicates a unique local address)
Global ID
Subnet identifier
[…]

A

Interface identifier

63
Q

Four sections of an IPv6 ‘unique local’ address:
Hexadecimal FD (indicates a unique local address)
Global ID
[…]
Interface identifier

A

Subnet identifier

64
Q

Four sections of an IPv6 ‘unique local’ address:
Hexadecimal FD (indicates a unique local address)
[…]
Subnet identifier
Interface identifier

A

Global ID

65
Q

Four sections of an IPv6 ‘unique local’ address:
[…]
Global ID
Subnet identifier
Interface identifier

A

Hexadecimal FD (indicates a unique local address)

66
Q

IPv6 unique local addresses begin with [2 hexadecimal digits].

A

FD

67
Q

What IPv6 address block is reserved for unique local addresses?

A

FC00::/7

68
Q

IPv6 […] addresses are like private IPv4 addresses.

A

unique local

69
Q

What is the typical size of the ‘interface identifier’ of an IPv6 global unicast address?

A

64 bits

70
Q

What is the typical size of the ‘subnet identifier’ of an IPv6 global unicast address?

A

16 bits

71
Q

What is the typical size of the ‘global routing prefix’ of an IPv6 global unicast address?

A

48 bits

72
Q

What are the three sections of an IPv6 global unicast address?
Global routing prefix
Subnet identifier
[…]

A

Interface identifier

73
Q

What are the three sections of an IPv6 global unicast address?
Global routing prefix
[…]
Interface identifier

A

Subnet identifier

74
Q

What are the three sections of an IPv6 global unicast address?
[…]
Subnet identifier
Interface identifier

A

Global routing prefix

75
Q

The IPv6 global unicast range was originally defined as […]

A

2000::/3
(now it includes all addresses which aren’t reserved for other purposes)

76
Q

IPv6 […] addresses are like public IPv4 addresses.

A

global unicast

77
Q

If the U/L bit of a MAC address is 1, it is a […]AA.

A

L

78
Q

If the U/L bit of a MAC address is […], it is an LAA.

A

1

79
Q

If the U/L bit of a MAC address is 0, it is a […]AA.

A

U

80
Q

If the U/L bit of a MAC address is […], it is a UAA.

A

0

81
Q

What is the 7th bit of a MAC address called?

A

U/L bit (Universal/Local bit)

82
Q

MAC addresses: What does LAA stand for?

A

Locally Administered Address

83
Q

MAC addresses: What does UAA stand for?

A

Universally Administered Address

84
Q

Configure an IPv6 address using EUI-64
R1(config-if)# […]

A

ipv6 address prefix/prefix-length eui-64

85
Q

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. […]

A

Invert the 7th bit

86
Q

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

A

Insert FFFE in the middle

87
Q

3 steps to convert a MAC address into an EUI-64 identifier:
1. […]
2. Insert FFFE in the middle
3. Invert the 7th bit

A

Divide the MAC address in half

88
Q

What does EUI stand for?

A

Extended Unique Identifier

89
Q

To use an IPv6 link-local address as a next hop, you must configure a […] static route.

A

fully specified

90
Q

In IPv6, you can’t use […] static routes if the interface is an Ethernet interface.

A

directly attached
(the command will work, but the route will not)

91
Q

Configure an IPv6 fully specified static route:
R1(config)# […]

A

ipv6 route destination/prefix-length exit-interface next-hop

92
Q

Configure an IPv6 recursive static route:
R1(config)# […]

A

ipv6 route destination/prefix-length next-hop

93
Q

Configure an IPv6 directly attached static route:
R1(config)# […]

A

ipv6 route destination/prefix-length exit-interface

94
Q

In a […] static route, the exit interface and next hop are both specified.

A

fully specified

95
Q

In a recursive static route, the […] is specified.

A

next hop (only)

96
Q

In a […] static route, the next hop (only) is specified.

A

recursive

97
Q

In a […] static route, the exit interface (only) is specified.

A

directly attached

98
Q

In a directly attached static route, the […] is specified.

A

exit interface (only)

99
Q

Are routes for IPv6 link-local addresses added to the routing table?

A

No

100
Q

To perform DAD, which address does a device send an NS to?

A

Its own solicited-node multicast address

101
Q

Which NDP messages does DAD use?

A

NS/NA

102
Q

[…] allows hosts to check if other devices on the local link are using the same IPv6 address.

A

Duplicate Address Detection (DAD)

103
Q

What does DAD stand for?

A

Duplicate Address Detection

104
Q

When using SLAAC, how is the interface ID generated?

A

EUI-64, or randomly

105
Q

Which NDP messages allow a device to learn the network prefix for SLAAC?

A

RS/RA

106
Q

What does SLAAC stand for?

A

Stateless Address Auto-configuration

107
Q

NDP RA messages are sent to [destination IP]

A

FF02::1

108
Q

NDP RS messages are sent to [destination IP]

A

FF02::2

109
Q

What command is used to view the IPv6 equivalent of an ARP table?
R1# […]

A

show ipv6 neighbor

110
Q

When trying to learn a MAC address, what destination IP address are NDP NS messages sent to?

A

The neighbor’s solicited-node multicast address

111
Q

NDP RA = ICMPv6 Type […]

A

134

112
Q

NDP […] = ICMPv6 Type 134

A

RA

113
Q

NDP RS = ICMPv6 Type […]

A

133

114
Q

NDP […] = ICMPv6 Type 133

A

RS

115
Q

NDP NA = ICMPv6 Type […]

A

136

116
Q

NDP […] = ICMPv6 Type 136

A

NA

117
Q

NDP NS = ICMPv6 Type […]

A

135

118
Q

NDP […] = ICMPv6 Type 135

A

NS

119
Q

What does the NDP ‘RA’ message stand for?

A

Router Advertisement

120
Q

What does the NDP ‘RS’ message stand for?

A

Router Solicitation

121
Q

What does the NDP ‘NA’ message stand for?

A

Neighbor Advertisement

122
Q

What does the NDP ‘NS’ message stand for?

A

Neighbor Solicitation

123
Q

Which protocol replaces ARP in IPv6?

A

NDP

124
Q

What does NDP stand for?

A

Neighbor Discovery Protocol

125
Q

How is an IPv6 solicited-node multicast address calculated from a unicast address?
ff02::1:ff + […]

A

Last 6 hex digits of unicast address

126
Q

How is an IPv6 solicited-node multicast address calculated from a unicast address?
[…] + Last 6 hex digits of unicast address

A

ff02::1:ff

127
Q

Which IPv6 header field functions like the IPv4 TTL field?

A

Hop Limit

128
Q

Which IPv6 header field indicates the encapsulated Layer 4 protocol?

A

Next Header

129
Q

What is the length of the IPv6 header?

A

40 bytes

130
Q

Which IPv6 header field indicates the length of the encapsulated Layer 4 segment?

A

Payload Length

131
Q

Which IPv6 header field is used to identify specific traffic flows?

A

Flow Label

132
Q

Which IPv6 header field is used for QoS?

A

Traffic Class

133
Q

Which IPv6 header field indicates the version of IP?

A

Version