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