Basic Network Device Commands

Question 1

View the MAC Address Table Command

Answer 1

show mac-address-table

Displays learned Media Access Control (MAC) addresses and the switch ports they are associated with, helping identify where devices are connected.

Question 2

View the Routing Table Command

Answer 2

show ip route

Displays the device’s routing table, showing known networks, next-hop addresses, and how routes were learned.

Question 3

View the Status of an Interface Command

Answer 3

show interface

Displays detailed interface information such as speed, duplex, errors, bandwidth, and whether the interface is up or down.

Question 4

View Device Configurations Command

Answer 4

show config (or show running-config on many Cisco devices)

Displays the current active configuration stored in memory.

Question 5

View the ARP Protocol Info Command

Answer 5

show arp

Displays the Address Resolution Protocol (ARP) table, mapping Internet Protocol (IP) addresses to Media Access Control (MAC) addresses learned on the device.

Question 6

View VLAN Configurations Command

Answer 6

show vlan

Lists configured Virtual Local Area Networks (VLANs), their names, and which interfaces belong to each VLAN.

Question 7

View Power-Related Info Command

Answer 7

show power

Displays information about Power over Ethernet (PoE), connected powered devices, available wattage, and power allocation on switch ports.