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CCNA > Subnetting > Flashcards

Subnetting Flashcards

0
Q

Multicast address range

A

224.0.0.0-239.239.255.255.255

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1
Q

Private address ranges

A
  1. 0.0.0-10.255.255.255
  2. 16.0.0-172.31.255.255
  3. 168.0.0-192.168.255.255
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2
Q

Use of broadcast addresses

A

Requesting an address

Exchanging routing information by routing protocol

Mapping upper layer addresses to lower layer address

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3
Q

Reserved local link local address range (on local network)

A

224.0.0.0-224.0.0.255

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4
Q

Globally scoped address range (across Internet)

A

224.0.1.0-238.255.255.255

Ex: network time protocol (224.0.1.1)

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5
Q

Limited broadcast

A

Broadcast to local network 255.255.255.255

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6
Q

Directed network

A

Broadcast towards specific network

Ex: 172.16.4.0/24
172.16.4.255

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7
Q

Uses of multicast

A

News feeds
Distribution software
Video, audio distribution

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8
Q

Apipa

A

169.254.0.0/16 address block

When dhcp is not avail

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9
Q

Default routes…

A

0.0.0.0/8

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10
Q

Loop back block

A

127.0.0.0-127.255.255.255

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11
Q

Use structured process because

A

Prevents address duplication
Monitors security and performance
Providing and controlling access

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12
Q

Tier 1 ISP

A

Internet backbone

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13
Q

Tier 2 ISP

A

Business customers

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14
Q

Tier 3 ISP

A

Retail, home markets

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15
Q

Ipv6 address

A

128 bit hierarchical addressing

16
Q

Anding

A

Used to determine an acceptable route for an incoming packet; helps determine network address using host address and subnet mask

17
Q

Ping 127.0.0.1

A

Indicates ip is properly installed on host

18
Q

Ping

A

Responds with icmp echo reply; time of each response is indicator of network performance

19
Q

Icmp may include:

A

Host confirmation
Unreachable destination or service
Ttl
Source quench: tells source to stop sending packets or datagrams
Route redirection: abetter route is avail

20
Q

Unreachable dest

A

0 net unreachable
1 host unreachable
2 protocol unreachable
3 port unreachable

CCNA (17 decks)

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