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Need Some Help with the CCNA
Test 640-407
See My Powerpoint Presentation
CCNA Links
Network Layers looked at
Some areas I had a hard time remembering
Router Modes
| To exit from user mode |
Router>Logout |
To get into privilaged exec mode |
Router>enable |
| To exit from privilaged mode & return to user mode |
Router#disable |
| To get into global configuration mode |
Router#config terminal |
| To get out of configuration mode |
Router(config)exit |
Types of Memory in a Cisco Router
| ROM |
holds the image the router uses when it initally boots |
| RAM |
holds running configuration and routing tables |
| NVRAM |
holds start up configurations |
| Flash |
hold operationg system software |
Encapsulation Types
Cisco Encapsulation |
Netware Frame Type |
| Arpa |
Ethernet_II |
| Novell-Ether |
Ethernet_802.3 |
| SAP |
Ethernet_802.2 |
| SNAP |
Ethernet_SNAP |
PDU's
| Transport Layer |
Segment |
| Network Layer |
Packets/Datagrams |
| Data Link Layer |
Frames |
| Physical Layer |
Bits |
ISDN Protocols
| E protocols |
Existing telephone standards |
| Q protocols |
Concepts, terminology, and general methods |
| I protocols |
Switching & Signaling |
Model Layers
DOD |
OSI |
|
|
Application |
7 |
| Process/Application |
Presentation |
6 |
|
Session |
5 |
|
|
|
| Host-Host |
Transport |
4 |
|
|
|
| Internet |
Network |
3 |
|
|
|
|
Data Link |
2 |
| Network Access |
Physical |
1 |
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