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CCNA
CCNA
22
Computer Networking
Professional
08/07/2013

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Cards

Term
ARP
Definition
Address Resolution Protocol. It resolves MAC addresses for known IP addresses. It's a broadcast, to it stays on the LAN
Term
BGP
Definition
Border Gateway Protocol holds all routes for the Internet
Term
Default Route
Definition
The route the router chooses when it doesn't have the destination IP address in its routing table
Term
Private Addresses
Definition
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255
Term
Automatic Addressing
Definition
169.254.0.0 - 169.254.255.255
Occurs when computer is not assigned an IP address. Something wrong with address assignment (DHCP unreachable)
Term
Loopback Addresses
Definition
127.0.0.0/8
Term
Class A
Definition
1-127 for first octet
Subnet 255.0.0.0
Term
Class B
Definition
128-191 first octet
Subnet 255.255.0.0
Term
Class C
Definition
192-223 first octet
Subnet 255.255.255.0
Term
Class D
Definition
224-239 first octet
Used for multicasting
Term
Class E
Definition
240-254 first octet
Used for experimentation
Term
DHCP
Definition
Dynamic Host Configuration Protocol.
Automatically assigns IP's for incoming broadcasts

Discovery request->DHCP Offer->DHCP Request->DHCP Ack + lease
Term
10BASE-T
Definition
10 Mbps
Cat3/Cat5 UTP
100 m
1024 nodes
Term
100BASE-TX
Definition
100 Mbps (200 Mbps)
Cat5 UTP
100m
Term
100BASE-FX
Definition
100 Mbps (200 Mbps)
Multimode (LED) fiber
400 m (2km)
Term
1000BASE-T
Definition
1 Gbps
Cat5e UTP
100 m
Term
1000BASE-TX
Definition
1 Gbps
Cat6 UTP
100 m
Term
1000BASE-SX
Definition
1 Gbps
Multimode fiber
550 m
Term
1000BASE-LX
Definition
1 Gbps
Single-mode (Laser) fiber
2km
Term
10GBASE-T
Definition
10 Gbps
Cat6a/Cat7 UTP
100 m
Term
10GBASE-SX4
Definition
10 Gbps
Multimode fiber
550 m
Term
10GBASE-LX4
Definition
10 Gbps
Single-mode fiber
2km
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