Mod 17-20

what is NVRAM

Non-volatile RAM, stores startup configuration file that is used when the switch is first powered on

Whats is SVI

Switch Virtual Interface

Privileged EXEC Mode

access all cmds and features; end with "#"

which cmd assigns password "ccna"

admin

cmd line vty prupose?

allows remote access

cmd ip address purpose?

assigns an IPv4

read-only memory (ROM)

cisco routers load limited ios

cmd for username and password when configuring user authentication

cmd username "put username" cmd password "password" username username password password

switch

connects pc to each other and rest of LAN

which cmd enables ssh server? and size of bits

crypto key generate rsa ; 1024

cmd transport input ssh

enables SSH protocol in vty lines

What cisco ios command line (CLI)

enables and executes ios cmds

cmd ip ssh version 2?

enables ssh version w global configuration

cmd shutdown purpose?

enables virtual interface

cmd service password-encryption purpose?

ensures all plain text pw are encrypted

"show" cmd purpose?

gives info about config operation

where do you config SVI

interface vlan1

what is stored in flash memory?

ios image file

user exec mode

limited capabilities; ends w ">"

in-band management

monitors and makes configurations through the network (uses protocols telnet and ssh)

Is telnet considered to be secure? Why?

no bc data is NOT encrypted and its plain text

out-of-band management

requires comp. to directly connect to console port of nw

cmd "line vty login local" purpose?

requires lcoal authentication for SSH connection

which cmd verifies SSH support

show ip ssh

what is stored in nvram

start-up config file

when configuring vty lines, which cmd enables SSH protocol in vty lines

transport input ssh

what is the third step of the switch boot process?

turn on switch and power on self-test (POST)

Random Access Memory (RAM)

where switches run ios

Is ssh considered to be secure? Why?

yes bc data is encrypted and its remote access