Cisco IOS Flashcards
Identify key information about the Cisco IOS
Which internal router component is nonvolatile and primarily used to store the Cisco IOS software image?
Flash memory contains the Cisco IOS software image and is nonvolatile.
What are the four main types of memory found in Cisco Switches?
- RAM
- Flash
- ROM
- NVRAM
What do Cisco Switches use RAM for?
Sometimes called DRAM (Dynamic Random Access Memory), is used by the switch just as it is used by any other computer: for working storage. Additionally, the active running configuration file is stored here.
What do Cisco Switches use NVRAM for?
Nonvolatile RAM (NVRAM) stores the initial startup configuration file that is used when the switch is first powered on and when the switch is reloaded.
What do Cisco Switches use ROM for?
Read-Only Memory store a bootstrap (or boothelper) program that is loaded when the switch first powers on. This bootstrap program then finds the full Cisco IOS image and manages the process of loading the Cisco IOS into RAM, at which point Cisco IOS takes over operation of the switch.
What do Cisco Switches use Flash memory for?
Flash memory can be either a chip inside the switch or a removable card. Flash memory stores fully functional Cisco IOS images and is the default location where the switch gets the Cisco IOS at boot time. Flash memory can also be used to store any other files, including backup copies of configuration files.
What are the two (2) main Cisco IOS Configuration Files?
- Startup-config
2. Running-config
What is the purpose of the Startup-config file?
Stores the initial configuration used any time the switch reloads.
Where is the Startup-config file stored?
NVRAM
What is the purpose of the Running-config file?
Stores the currently used configuration commands. The file changes dynamically when someone enters commands in configuration mode.
Where is the Running-config file stored?
RAM
