CCNA Day 6 Ethernet LAN Switching (Part 2)

What is the size of the Ethernet header + trailer? (no Preamble + SFD)

18 bytes

What is the minimum size of an Ethernet frame? (Header + Payload + Trailer)

64 bytes

What is the minimum size of an Ethernet payload?

46 bytes

What protocol is used to discover the Layer 2 address of another device?

ARP (Address Resolution Protocol)

What two messages are used in ARP?

ARP Request

ARP Reply

The ARP Request message is […]cast.

broad

The ARP Reply message is […]cast.

uni

What is the broadcast MAC address?

FFFF.FFFF.FFFF

What is the command to view the ARP table on a Windows, macOS, or Linux computer?

arp -a

What two messages are used in ping?

ICMP Echo Request

ICMP Echo Reply

The process of addresses being cleared from the MAC address table after 5 minutes of inactivity is known as […]

aging

"Clear all dynamic MAC addresses from the MAC Address Table:

SW1# […]

"

clear mac address-table dynamic

"View the MAC Address Table:

SW1# […]

"

show mac address-table

"Clear all entries for a specific dynamic MAC address from the MAC Address Table:

SW1# […]

"

clear mac address-table dynamic address mac-address

"Clear all dynamic MAC addresses on a specific interface from the MAC Address Table:

SW1# […]

"

clear mac address-table dynamic interface interface-id

What is the Ethernet Type code for an ARP packet?

0x0806

Command to show the ARP table on a Cisco device:

show arp