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networking > Module 12 > Flashcards

Module 12 Flashcards

1
Q

What is the most important motivating
factor for moving to IPv6?
* better performance with IPv6
* IPv6 addresses that are easier to
work with
* better security with IPv6
* depletion of IPv4 addresses

A
  • depletion of IPv4 addresses
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2
Q

True or False: 4 out of 5 RIRs no longer
have enough IPv4 addresses to
allocate to customers on a regular
basis.
* True
* False

A
  • True
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3
Q

Which of the following techniques use
native IPv6 connectivity?
* dual stack
* tunneling
* translation
* all of the above

A
  • dual stack
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4
Q

What is the recommended prefix
length for most IPv6 subnets?
* /32
* /48
* /64
* /128

A
  • /64
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5
Q

Which part of a GUA is assigned by the
ISP?
* Global Routing Prefix
* Global Routing Prefix and Subnet
ID
* Prefix
* RIR Prefix

A
  • Global Routing Prefix
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6
Q

Which type of IPv6 unicast address is
not routable between networks?
* unique local address
* GUA
* embedded IPv4 address
* LLA

A
  • LLA
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7
Q

True or False: The Subnet ID field in an
GUA must borrow bits from the
interface ID.
* True
* False

A
  • False
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8
Q

What type of IPv6 address begins with
fe80?
* GUA
* LLA
* multicast address
* None. An IPv6 address must begin
with 2001

A
  • LLA
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9
Q

True or False. RA messages are sent to
all IPv6 routers by hosts requesting
addressing information.
* True
* False

A
  • False
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10
Q

Which dynamic addressing method
for GUAs is the one where devices rely
solely on the contents of the RA
message for their addressing
information?
* Method 1: SLAAC
* Method 2: SLAAC and Stateless
DHCPv6
* Method 3: Stateful DHCPv6

A
  • Method 1: SLAAC
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11
Q

.Which dynamic addressing method
for GUAs is the one where devices rely
solely on a DHCPv6 server for their
addressing information?
* Method 1: SLAAC
* Method 2: SLAAC and Stateless
DHCPv6
* Method 3: Stateful DHCPv6

A
  • Method 3: Stateful DHCPv6
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12
Q

Which dynamic addressing method
for GUAs is the one where devices get
their IPv6 configuration in a RA
message and request DNS
information from a DHCPv6 server?
* Method 1: SLAAC
* Method 2: SLAAC and Stateless
DHCPv6
* Method 3: Stateful DHCPv6

A
  • Method 2: SLAAC and Stateless
    DHCPv6
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13
Q

What are the two methods a device
can use to generate its own IPv6
interface ID?
* SLAAC
* stateless DHCPv6
* stateful DHCPv6
* EUI-64
* randomly generated

A
  • EUI-64
  • randomly generated
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14
Q

. True or False? IPv6 was designed with
subnetting in mind.
* True
* False

A
  • True
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15
Q

Which field in an IPv6 GUA is used for
subnetting?
* Prefix
* Network
* Global Routing Prefix
* Subnet ID
* Interface ID

A
  • Subnet ID
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16
Q

Given a /48 Global Routing Prefix and
a /64 prefix, what is the subnet portion
of the following address:
2001:db8:cafe:1111:2222:3333:4444:
5555
* café
* 1111
* 2222
* 3333
* 4444

A
  • 1111
17
Q

Given a /32 Global Routing Prefix and
a /64 prefix, how many bits would be
allocated for the Subnet ID?
* 8
* 16
* 32
* 48
* 64

A
  • 32
18
Q

What is the subnet address for the
IPv6 address
2001:D12:AA04:B5::1/64?
* 2001::/64
* 2001:D12::/64
* 2001:D12:AA04::/64
* 2001:D12:AA04:B5::/64

A
  • 2001:D12:AA04:B5::/64
19
Q

Which type of IPv6 address is not
routable and used only for
communication on a single subnet?
* global unicast address
* link-local address
* loopback address
* unique local address
* unspecified address

A
  • link-local address
20
Q

Which address type is not supported
in IPv6?
* private
* multicast
* unicast
* broadcast

A
  • broadcast
21
Q

.What is the minimum configuration for
a router interface that is participating
in IPv6 routing?
* to have only a link-local IPv6
address
* to have both an IPv4 and an IPv6
address
* to have a self-generated loopback
address
* to have both a link-local and a
global unicast IPv6 address
* to have only an automatically
generated multicast IPv6 address

A
  • to have only a link-local IPv6
    address
22
Q

.What is the interface ID of the IPv6
address
2001:DB8::1000:A9CD:47FF:FE57:FE9
4/64?
* FE94
* FE57:FE94
* 47FF:FE57:FE94
* A9CD:47FF:FE57:FE94
* 1000:A9CD:47FF:FE57:FE94

A
  • A9CD:47FF:FE57:FE94
23
Q

What are three parts of an IPv6 global
unicast address? (Choose three.)
* an interface ID that is used to
identify the local network for a
particular host
* a global routing prefix that is used
to identify the network portion of
the address that has been
provided by an ISP
* a subnet ID that is used to identify
networks inside of the local
enterprise site
* a global routing prefix that is used
to identify the portion of the
network address provided by a
local administrator
* an interface ID that is used to
identify the local host on the
network

A
  • a global routing prefix that is used
    to identify the network portion of
    the address that has been
    provided by an ISP
  • a subnet ID that is used to identify
    networks inside of the local
    enterprise site
  • an interface ID that is used to
    identify the local host on the
    network
24
Q

What is the valid most compressed
format possible of the IPv6 address
2001:0DB8:0000:AB00:0000:0000:000
0:1234?
* 2001:DB8:0:AB00::1234
* 2001:DB8:0:AB::1234
* 2001:DB8::AB00::1234
* 2001:DB8:0:AB:0:1234

A
  • 2001:DB8:0:AB00::1234
25
Q

What is the prefix associated with the
IPv6 address
2001:CA48:D15:EA:CC44::1/64?
* 2001::/64
* 2001:CA48::/64
* 2001:CA48:D15:EA::/64
* 2001:CA48:D15:EA:CC44::/64

A
  • 2001:CA48:D15:EA::/64
26
Q

.What type of address is automatically
assigned to an interface when IPv6 is
enabled on that interface?
* global unicast
* link-local
* loopback
* unique local

A
  • link-local
27
Q

Which IPv6 network prefix is only
intended for local links and can not be
routed?
* 2001::/3
* FC00::/7
* FE80::/10
* FEC0::/10

A
  • FE80::/10
28
Q

. Your organization is issued the IPv6
prefix of 2001:0000:130F::/48 by your
service provider. With this prefix, how
many bits are available for your
organization to create subnetworks if
interface ID bits are not borrowed?
* 8
* 16
* 80
* 128

A
  • 16
29
Q

.What is the most compressed
representation of the IPv6 address
2001:0000:0000:abcd:0000:0000:000
0:0001?
* 2001:0:abcd::1
* 2001:0:0:abcd::1
* 2001::abcd::1
* 2001:0000:abcd::1
* 2001::abcd:0:1

A
  • 2001:0:0:abcd::1
30
Q

What is indicated by a successful ping
to the ::1 IPv6 address?
* The host is cabled properly.
* The default gateway address is
correctly configured.
* All hosts on the local link are
available.
* The link-local address is correctly
configured.
* IP is properly installed on the host.

A
  • IP is properly installed on the host.
31
Q

What is the purpose of the command
ping ::1?
* It tests the internal configuration of
an IPv6 host.
* It tests the broadcast capability of
all hosts on the subnet.
* It tests the multicast connectivity
to all hosts on the subnet.
* It tests the reachability of the
default gateway for the network.

A
  • It tests the internal configuration of
    an IPv6 host.
32
Q

At a minimum, which address is
required on IPv6-enabled interfaces?
* link-local
* unique local
* site local
* global unicast.

A
  • link-local

networking (7 decks)

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