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Netwrk-2 > 8.1: IPv6 GUA Assignment > Flashcards

8.1: IPv6 GUA Assignment Flashcards

1
Q

SLAAC means___

A

stateless address autoconfiguration

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2
Q

GUAs means___

A

global unicast addresses

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3
Q

LLA

A

link-local addresses

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4
Q

To use either stateless address autoconfiguration (SLAAC) or DHCPv6, you should review ____

A

global unicast addresses (GUAs) and link-local addresses (LLAs)

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5
Q

On a router, an IPv6 global unicast address (GUA) is manually configured using the_______ interface configuration command.

A

ipv6 address ipv6-address/prefix-length

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6
Q

True or False
It is much better to manually enter an IPv6 GUA (Global unicast address)

A

False
Manually entering an IPv6 GUA can be time consuming and somewhat error prone.

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7
Q

When will the host attempt to automatically obtain and configure IPv6 address info on the interface?

A

when automatic IPv6 addressing is selected

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8
Q

ICMPv6 means___

A

Internet Control Message Protocol version 6

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9
Q

RA means__

A

Router Advertisement

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10
Q

True or False
The host will use all of three methods defined by the Internet Control Message Protocol version 6 (ICMPv6) Router Advertisement (RA) message received on the interface

A

False
The host will use one of three methods defined by the Internet Control Message Protocol version 6 (ICMPv6) Router Advertisement (RA) message received on the interface

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11
Q

An IPv6 router that is on the ____ as the host sends out RA messages that suggest to the hosts how to obtain their IPv6 addressing information

A

same link

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12
Q

The ____ is automatically created by the host when it boots and the Ethernet interface is active.

A

IPv6 link-local address

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13
Q

Host operating systems will at times show a link-local address appended with a “%” and a number. This is known as a _____. It is used by the OS to associate the LLA with a specific interface.

A

Zone ID or Scope ID

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14
Q

By default, an IPv6-enabled router advertises its ____.

A

IPv6 information

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15
Q

DEVICE GUA ASSIGNMENT
Via ___ method, no device is tracking the assignment of IPv6 addresses

A

stateless

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16
Q

DEVICE GUA ASSIGNMENT
Via ___ method, a server is tracking the assignment of IPv6 addresses

A

stateful

17
Q

DYNAMIC GUA ASSIGNMENT->STATELESS
This method is where the router send RA messages providing all IPv6 info

The host use the RA info exclusively for all their addressing including creating their own GUA

A

SLAAC only
Stateless address autoconfiguration

18
Q

DYNAMIC GUA ASSIGNMENT->STATELESS
This method is where the router RA messaged provide IPV6 config info to host and inform them to contact a stateless DHCPv6 server for additional config info

The host use the RA info to create their own unique GUA and get additional info from a DHCPv6 server

A

SLAAC with DHCP server
(Stateless DHCPv6)

19
Q

DYNAMIC GUA ASSIGNMENT->Stateful
This method is where the ROUTER ra messages inform hosts to contact a stateful DHCPv6 server or DHCPv6-enabled router for all IPv6 configuration info, except def gateway address

Hosts contact a DHCPv6 server to acquire all of their IPv6 addressing info

Host obtains def gateway info from router RA messages

A

DHCPv6 Server
(Stateful DHCPv6)

20
Q

The decision of how a client will obtain an IPv6 GUA depends on the settings within the ____.

A

RA message

21
Q

An ICMPv6 RA message includes three flags to identify the dynamic options available to a host, as follows:

A

A flag, O flag, M flag

22
Q

RA MESSAGES FLAGS
This is the Address Autoconfiguration flag
Use SLAAC to create an IPv6 GUA

A

A Flag

23
Q

RA MESSAGES FLAGS
This is the Other Configuration Flag.
Other info is available from a stateless DHCPv6 server

A

O Flag

24
Q

RA MESSAGES FLAGS
This is the Managed Address Autoconfiguration flag
Use a stateful DHCPv6 to obtain an IPV6 GUA

A

M Flag

25
Q

True or false
Using different combinations of the A, O and M flags, RA messages inform the host about the dynamic options available.

A

True

Netwrk-2 (34 decks)

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