Shared Flashcard Set

Details

CCNA 640-802 Ch.5
Managing a Cisco Internetwork
36
Computer Networking
Professional
12/09/2012

Additional Computer Networking Flashcards

 


 

Cards

Term
What is the Bootstrap?
Definition
Used to bring a router up during initialization and is stored in the microcode of the ROM.
Term
Where is POST stored?
Definition
In the microcode of the router.
Term
What is ROM Monitor?
Definition
Software used for manufacturing, testing and troubleshooting. It is stored in the microcode of ROM.
Term
What is mini-IOS?
Definition
Used to bring up an interface and load a cisco IOS into flash memory.
Term
What are two other neame mini-IOS is referred to?
Definition
RXBOOT or bootloader.
Term
What is RAM used for in a Cisco Router?
Definition
Used to store packet buffers, ARP cache, routing tables. This is also where the running config is stored.
Term
What is ROM used for in a Cisco Router?
Definition
It is used to start and maintain the router. Hold the bootstraper and the mini-IOS.
Term
What is Flash memory in regards to a Cisco router?
Definition
Stores Cisco IOS by default. It is not erased when a router is reloaded.
Term
What is NVRAM?
Definition
Non-volatile RAM. It is used to hold a router and switch configuration. NVRAM is not erased when a router is reloaded. The configuration register is stored in NVRAM.
Term
What is the configuration register?
Definition
Shown as the last line in the show version command and controls how the router will boot. The default value is 0x2102 which tells the router to load the IOS from flash memory and the configuration from NVRAM
Term
What is the first step of a router boot sequence?
Definition
The router performs POST
Term
What is the second step of a router boot sequence?
Definition
The bootstrap loads the Cisco IOS.
Term
What is the third step of a router boot sequence?
Definition
The IOS software looks for a startup config stored in NVRAM.
Term
What is the fourth step in the router bootup sequence?
Definition
If a stratup file is found in NVRAM it copies the file into RAM and the router is fully operational. If a starup file is not found it broadcasts out all CD interfaces looking for the file. If this fails it will start the setup mode configuration process.
Term
How do you boot to ROM monitor mode?
Definition
Set the configuration register to 0x2100.
Term
What is the command to change to configuration register to 0x2101?
Definition
router(config)#config-register 0x2101
Term
What is the desired mode for recovering Passwords?
Definition
ROM Monitor mode.
Term
What is the desired configuration register value to enter ROM Monitor mode?
Definition
0x2142
Term
What is the keyboard combination to use to enter ROM Monitor mode?
Definition
Ctrl+Break during bootup.
Term
What is the command to backup flash to a TFTP Server?
Definition
Router#copy flash TFTP
Term
What are the steps to load a new IOS into flash.
Definition
1. delete the current version. Router#delete flash(filename)
2. Load the new IOS from TFTP Server
Router# copy tftp://1.1.1.2//(filename)/ flash:/(filename)
Term
What is CDP?
Definition
Cisco Discovery Protocol. Used to discover connected neighbor devices.
Term
What the CDP holdtime?
Definition
The amout of time in seconds a router will a packet before digarding it if no packets are recieved within that time
Term
What is the CDP Timer?
Definition
The rate at which packets are sent.
Term
What is the CDP Traffic command used for?
Definition
To show CDP Packets passed and any erros.
Term
What must be set in order to telnet to another cisco device
Definition
A line vty password must be set.
Term
What is the show sessions command used for?
Definition
Shows a history of telnet connections.
Term
What does an * represent in the shows sessions command?
Definition
It represents you last connection and you can access it by hitting enter twice.
Term
What is the command to show all active telnet sessions?
Definition
show users.
Term
How do you disconnect a telnet session from a different user?
Definition
router#clear line (line connected to from the sh users command)
Term
What is the command to give IP address 10.2.2.2 the hostname of R1
Definition
Corp(config)#ip host R1 10.2.2.2
Term
What are the commands to enable DNS?
Definition
Corp(router)#ip name-server 192.168.1.1
Corp(router)#ip domain-name cisco.com
Term
What must be done to be able to use host tables?
Definition
A DNS Server must be configured on the router.
Term
What is the command to copy IOS to a TFTP Server
Definition
copy flash tftp
Term
What is the command to copy startup config to a tftp server
Definition
copy start tftp
Term
What is the command to copy startup config to DRAM
Definition
copy start run
Supporting users have an ad free experience!