### ......................... ### HOME ### Back To Help Page ### MCSE Home Page ### CCNA Page ### Help In DOS ### Win95 ### Jet Admin ### Links ### Making Cables ### Infrared ### General ### E-Mail Me |  | #### 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