Section 15 cisco device management

Question 1

What 4 built in memory locations do cisco routers and switches have?

Answer 1

R.R.F.N.
RAM -Random Access memory
ROM - Read Only Memory
Flash - Newer Devices use removable CompactFlash
NVRAM Non-Volatile RAM

Question 2

when a device is powered on what is loaded first and What two functions are performed

Answer 2

first: it load’s ROM. Read Only Memory

Two Functions: POST and Load Bootstrap.

Question 3

What does POST do?

Answer 3

Look for problems with the hardware upon startup.

Question 4

What does loading bootstrap on startup do?

Answer 4

looks in Flash for a IOS startup image to load next.

Question 5

ROMMON prompt at cmd line

Answer 5

Device saying it can’t find the IOS image.

Question 6

What does ROMMON stand for and what does it do

Answer 6

ROM Monitor

Can be used to recover a missing or corrupted software image.

Question 7

How can ROM Monitor be used?

Answer 7

can be used to boot from a USB or external TFTP server

Question 8

Flash Mempry

Answer 8

Loads first IOS image found in flash by default.

Question 9

How can a IOS flash memory be overridden

Answer 9

boot system command

Question 10

How to copy additioanl IOS system images to flash

Answer 10

Via TFTP or USB.

Question 11

NVRAM

Answer 11

stores the startup-config

Question 12

What happens to the saved startup-config when you load it

Answer 12

it becomes the current running config in RAM

Question 13

What happens when no startupconfig is found?

Answer 13

device will load setup wizard

Question 14

do commands you enter go into the running config immediately?

Answer 14

yes

Question 15

how to save change to device?

Answer 15

wr

copy running-config startup-config

Question 16

What happens if you have a catastrophic error

Answer 16

pull the plug and it will boot up with old startup config

Question 17

FLASh loads what?

Answer 17

start up config and ios system image.

Question 18

RAM

Answer 18

used a normal working memory of the device

Question 19

Is ram volatile?

Answer 19

yes

Question 20

VLAN database

Answer 20

file is vlan.dat
on switch
saves vlan info

Question 21

How to factory reset a router or switch

Answer 21

write erase

Question 22

what will write erase do

Answer 22

rease startup config
reloads to boot up with a blank config
setup wizard will run

Question 23

what is config register

Answer 23

can be used to change way the router boots

Question 24

whats are the three examples of config-register

Answer 24

0x2102 boot normally (default)
0x2120 boot into rommon
0x2142 ignore contents of NVRAM (startup-config)

Question 25

what is the config register cmd?

Answer 25

config-register 0x21**

Question 26

what is the router password recovery procedure

Answer 26

press break sequence when loading

Question 27

is enable secret always encrypted?

Answer 27

yes

Question 28

Steps to recover password

Answer 28

1. boot up router into rommon mode (power on the first min hit ctrl break)
   2.