N2:Ch0 Switch IOS Commands

Question 1

configure terminal

Answer 1

enters global configuration mode.

Question 2

vlan vlan_id

Answer 2

assigns an id

Question 3

exit

Answer 3

returns to the previous level; exits session at priv. exec

Question 4

interface interface_id

Answer 4

access specified interface

Question 5

switchport mode access

Answer 5

sets a switchport for information access/exchange

Question 6

switchport access vlan vlan_id

Answer 6

assigns an interface to a specific VLAN

Question 7

ip address ip_address subnet_mask

Answer 7

assigns ip address / subnet to interface

Question 8

interface vlan vlan_id

Answer 8

access interface configuration for a VLAN

Question 9

no shutdown

Answer 9

activates interface

Question 10

end

Answer 10

returns to priv. exec mode;

Question 11

copy running-config startup-config

Answer 11

copies running config to the startup config - saves running config

Question 12

ip default-gateway ip_address

Answer 12

assigns default gateway for switch

Question 13

duplex {**full | half | auto**}

Answer 13

sets duplex setting of interface to full, half , or auto

Question 14

speed speed_value

Answer 14

sets speed of interface to 10, 100 or 1000

Question 15

mdix auto

Answer 15

enables MDIX auto cable simulation/ select

Question 16

show interfaces

Answer 16

shows information about all interfaces; can use “brief” , “switchport” arguments among others

Question 17

show history

Answer 17

shows list of recently given commands; level specific

Question 18

show flash

Answer 18

displays information about flash /NVRAM

Question 19

show ip switchport

Answer 19

displays ip information for switchports

Question 20

show mac-address-table / show mac address table

Answer 20

displays information about the MAC address table

Question 21

show ip ssh

Answer 21

displays SSH information if switch uses it

Question 22

ip domain-name domain_name

Answer 22

configures ip domain name of switch (network) at global config level

Question 23

crypto key generate rsa

Answer 23

generates RSA key to use; 512 or 1024 modulus used

Question 24

crypto key zeroize rsa

Answer 24

global config command used to delete RSA key and disable SSH server

Question 25

***username secret** password*

Answer 25

sets user name and password for SSH

Question 26

***line vty** vty\_line\_id(s)*

Answer 26

accesses specified vty lines; 0 through 15 in this case

Question 27

***transport input ssh***

Answer 27

enables SSH on selected VTY lines

Question 28

***login***

Answer 28

requires login with local authentication

Question 29

***ip ssh version** 2*

Answer 29

enables SSH V2 via global config.

Question 30

***switchport port-security***

Answer 30

enables port security on interface selected

Question 31

***switchport port-security** maximum*

Answer 31

sets max. number of secure address allowed on a port

Question 32

***switchport port-security mac-address** sticky*

Answer 32

enables sticky learning of MAC addresses

Question 33

***ntp server*** *ntp\_server\_ip*

Answer 33

allows switch to synchronize to NTP server whose ip address is provided

Question 34

***ntp master*** *{0-15 stratum value}*

Answer 34

allows switch to synchronize to other switches/devices

Question 35

***show ntp associations***

Answer 35

priv. exec mode that indicates IP address of any devices that are synced to current device, statically configured peers , and stratum number

Question 36

***show ntp status***

Answer 36

user exec command that displays NTP sync status, peer the device is synced to and which NTP strata the devices is functioning in.