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LDCE Data network > IP Addressing > Flashcards

IP Addressing Flashcards

1
Q

IPv4 multicast address
1) Class C
2) Class D
3) Class E

A

Class D
224.0.0.0/4

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2
Q

128.0.0.0—-191.255.255.255 indicates
1) Class B
2) Class C
3) Class D
4) Class E

A

Class B

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3
Q

192.0.0.0—-223.255.255.255 indicates
1) Class B
2) Class C
3) Class D
4) Class E

A

Class C

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4
Q

224.0.0.0—–239.255.255.255 indicates
1) Class B
2) Class C
3) Class D
4) Class E

A

Class D
IPv4 multicast address

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5
Q

240.0.0.0—–255.255.255.254 indicates
1) Class B
2) Class C
3) Class D
4) Class E

A

Class E

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6
Q

224.0.0.0/4
1) Link-local addresses
2) Loop-back addresses
3) used to communicate within the current network
4) IPv4 multicast address

A

Class D
IPv4 multicast address

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7
Q

169.254.0.0 – 169.254.0.16 :
1) Link-local addresses
2) Loop-back addresses
3) used to communicate within the current network
4) IPv4 multicast address

A

Link-local addresses

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8
Q

127.0.0.0 – 127.255.255.255 :
1) Link-local addresses
2) Loop-back addresses
3) used to communicate within the current network
4) IPv4 multicast address

A

Loop-back addresses

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9
Q

0.0.0.0 – 0.0.0.8:
1) Link-local addresses
2) Loop-back addresses
3) used to communicate within the current network
4) IPv4 multicast address

A

used to communicate within the current network

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10
Q

Choose private IP address(es)
1) 10.0.0.0 to 10.255.255.255
2) 172.16.0.0 to 172.31.255.255
3) 192.168.0.0 to 192.168.255.255

A

all of them

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11
Q

______ assigns public addresses
1) IANA
2) ICANN

A

ICANN (The Internet Corporation for Assigned Names and Numbers0

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12
Q

The bits in the network mask is set to ____ to treat the corresponding bit in the IP address as part of host number
1) 0
2) 1

A

set to 0
set 1 for network part

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13
Q

VLSM stands for

A

Variable Length Subnet Mask
- traditional method is FLSM, fixed length

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14
Q

CIDR stands for

A

Classless Inter Domain Routing

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15
Q

Given an IP address, its class can be determined from the ______ high-order bits
1) 2
2) 3
3) 4

A

3 bits

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16
Q

IPv4 multicast address
1) 192.0.0.0/4
2) 224.0.0.0/4
3) 240.0.0.0/4

A

224.0.0.0/4

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17
Q

Routers use the network-prefix to determine the dividing point between the network number and the host number
1) CIDR
2) classful

A

CIDR
Classless Inter Domain Routing

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18
Q

An inter-domain gateway protocol
1) Border Gateway Protocol
2) OSPF

A

Border Gateway Protocol

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19
Q

An intra-domain gateway protocol
1) Border Gateway Protocol
2) OSPF

A

OSPF

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20
Q

Which of the following supports CIDR
1) Routing Information Protocol
2) Border Gateway Protocol
3) OSPF
4) Exterior Gateway Protocol

A

2) Border Gateway Protocol
3) OSPF

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21
Q

IPv6 address size
1) 64-bit
2) 128-bit
3) 256-bit

A

128-bit

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22
Q

IPv6 supports
1) Stateless autoconfiguration
2) Jumbograms
3) Anycast
4) Multicast

A

all of these
Stateless autoconfiguration: The ability for nodes to determine their own
address
Jumbograms: The ability to have very large packet payloads for greater
efficiency
Anycast: Redundant services using nonunique addresses
Multicast: Increased use of efficient one-to-many communications

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23
Q

If you do not specify a prefix length for an IPv6 address, the default prefix length is
1) /32
2) /64
3) /96

24
Q

IPv6 address length can be reduced by
1) zero compression
2) zero suppression
3) both

25
In IPv6 address, a double colon (::). can appear ________ in the address 1) only once 2) only twice 3) any times
only once - otherwise total length cannot be derived
26
IPv6 can eliminate 1) NAT Network Address Translation 2) Application Layered Gateway
both
27
IPv6 header is only __ times as bigger than IPv4 1) 2 times 2) 4 times 3) 8 times
2 times (but IPv6 address is four times longer)
28
IPv6 supports _______ auto configuration mode of its host devices 1) stateful 2) stateless
both stateful and stateless. This way, absence of a DHCP server does not put a halt on inter segment communication.
29
IPsec security is _______ in the IPv6 protocol specification 1) mandated 2) optional
mandated
30
Routers, while routing, send the packet to the nearest destination. This refers to 1) multicast 2) anycast 3) broadcast 4) narrowcast
anycast (IPv6 has introduced Anycast) anycast address is essentially a unicast address assigned to multiple devices with a host ID = 0000:0000:0000:0000.
31
The IPv6 addresses assigned to an interface can be 1) unicast address 2) multicast address 3) anycast address
all of them
32
Each IPv6 address type has a scope 1) link-local scope 2) unique-local scope 3) global scope
any of these
33
IPv6 addresses are unique only in a subnet or a local network 1) link-local scope 2) unique-local scope 3) global scope
link-local scope
34
IPv6 addresses are unique in private networks or between organizations 1) link-local scope 2) unique-local scope 3) global scope
unique-local scope
35
The MAC address of a system is composed of ____-bits 1) 32 bits 2) 48 bits 3) 64 bits
48 bits
36
First, a host divides its own MAC address into two 24-bits halves. Then 16-bit Hex value 0xFFFE is sandwiched into those two halves of MAC address, resulting in _____ ID. 1) Interface ID 2) EUI-64 ID 3) IPv6 ID
EUI-64 ID
37
In IPv6, the three most significant bits of Global Routing Prefix is always set to _____ to indicate a unicast address 1) 110 2) 100 3) 001 4) 101
001
38
If host address all bits are 0, it indicates 1) network address 2) Broadcast address 3) loopback address 4) all networks
network address - for a network segment
39
If host address all bits are 1, it indicates 1) network address 2) Broadcast address 3) loopback address 4) all networks
Broadcast address - for all nodes in the specified network segment
40
If network address =127 with any host address, it indicates 1) network address 2) Broadcast address 3) loopback address 4) all networks
loopback address
41
If host and network address all bits are 1, it indicates 1) network address 2) Broadcast address 3) loopback address 4) all networks
Broadcast address - for all nodes in the current network segment
42
If host and network address all bits are 0, it indicates 1) network address 2) Broadcast address 3) loopback address 4) all networks
all networks - used to specify the default route
43
Interface ID is unique within the specific 1) prefix 2) subnet 2) prefix and subnet
prefix and subnet
44
Global IPv6 address form: global routing prefix has _____ bits 1) 16 2) 45 3) 48 4) 64
45 48 bits prefix: '001'+45 bits 16 bits subnet 64 bits interface ID
45
Global IPv6 address form: interface ID has _____ bits 1) 16 2) 45 3) 48 4) 64
64 48 bits prefix: '001'+45 bits 16 bits subnet 64 bits interface ID
46
Global IPv6 address form: subnet has _____ bits 1) 16 2) 45 3) 48 4) 64
16 48 bits prefix: '001'+45 bits 16 bits subnet 64 bits interface ID
47
Auto-configured IPv6 address is known as 1) link-local address 2) unique-local address 3) global address
Link-Local address
48
___ address always starts with FE80 1) link-local address 2) unique-local address 3) global address
link-local address
49
link-local address address always starts with 1) 001 2) FE80 3) FFFF 4) FF80
FE80
50
A router never forwards these IPv6 addresses 1) link-local address 2) unique-local address 3) global address
link-local address
51
These addresses are useful for establishing communication across a link in the absence of a globally routable prefix. 1) link-local address 2) unique-local address 3) global address
link-local address
52
A router can be installed with both IPv4 and IPv6 addresses 1) multi stack 2) dual stack 3) multi IP 4) dual IP
dual stack
53
This consists of encapsulating IPv6 packets within IPv4, in effect using IPv4 as a link layer for IPv6. 1) translation 2) tunneling 3) dual stack
tunneling
54
Technologies used for smooth transition from IPv4 to IPv6. 1) replacing IPv4 routers with IPv6 2) using dual stack routers 3) tunneling 4) using NAT-PT enabled device
2,3,4 NAT-PT: Network Address Translation – Protocol Translation
55
smooth transition from IPv4 to IPv6 is supported by NAT-PT enabled devices. NAT-PT stands for
Network Address Translation – Protocol Translation
56
Classless routing tables a usually stored in a hierarchical data structure called a 1) binary tree 2) route tree 3) address tree
binary tree

LDCE Data network (6 decks)

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