Show Commands

Question 1

Show running config

Answer 1

Includes
Interface info like IP address, status of interface

Device wide info like if passwords set, if SSH and Telnet set up

When config last updated

vlan info

Question 2

Show interfaces

Answer 2

If no interface included:
Show info on each configed on device

Specific interface too
mtu, bandwidth label, mac, Ip, subnet mask, errors on interface

See number of errors, specific types of errors (like giant collisions)

Good for connection issues

Question 3

Show ip routes

Answer 3

Show routing table

See next hop for every packet
L3 command
Shows which interface will send out packet for certain ip
Shows how device learned rout

Question 4

Show ip interface

Answer 4

Detailed L3 report of interface
Can include an interface

Show incoming and outgoing access list
Ip addy
Network mask

Show ip int brief
See if interface up and up

Question 5

Show access-list

Answer 5

Show access list on device
Shows all lines but not what interface access list applied to-use sho ip int or sho run to see this

Shows for all protocols
Can see only ip by show ip access list

All access list has unstated deny any at end

Question 6

Show cdp neighbor detail

Answer 6

Show info about Cisco dev connected to
Is L2
Is Cisco proprietary so shows nothing that isn’t Cisco

Includes remote dev type
Remote interface
Remote device if

Question 7

Show vlan

Answer 7

Shows info and status of vlans on device 
Includes
Vlan name
Vlan number
Interface on which vlans found

Can do vlan brief
Interface designation
Ip addy
Designation
Port assigned

Question 8

Sho interface trunks

Answer 8

View all trunk ports on dev

Includes
What vlans allowed on what dev
What the native vlan is

Use for trunking and what vlans can pass thru trunk

Question 9

Sho ip protocol

Answer 9

Shows info on L3 protocols
Includes
Rip
Ospf 
Eigrp