Introduction to WANS
Introduction to routers in a WAN
Continued
Download a decimal to 8 bit binary convereter
NVRAM has the following characteristics and functions:
- Provides storage for the startup configuration file
- Retains content when a router is powered down or restarted
Flash memory has the following characteristics and functions:
- Holds the IOS image
- Allows software to be updated without removing and replacing chips on the processor
- Retains content when a router is powered down or restarted
- Can store multiple versions of IOS software
- Is a type of electrically erasable programmable read-only memory (EEPROM)
ROM has the following characteristics and functions:
- Maintains instructions for power-on self test (POST) diagnostics
- Stores bootstrap program and basic operating system software
- Requires replacing pluggable chips on the motherboard for software upgrades
Interfaces have the following characteristics and functions:
- Connect routers to a network for packet entry and exit
- Can be on the motherboard or on a separate module
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