Ethernet LAN Switching Part 2

Question 1

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

Answer 1

18 Bytes

Question 2

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

Answer 2

64 Bytes

Question 3

What is the minimum size of an Ethernet payload?

Answer 3

46 Bytes

Question 4

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

Answer 4

ARP (Address Resolution Protocol)

Question 5

What two message are used in ARP (Address Resolution Protocol)?

Answer 5

ARP Request

ARP Reply

Question 6

The ARP (Address Request message is ______ cast.

Answer 6

Broadcast

Question 7

The ARP (Address Request Protocol) message is _____ cast.

Answer 7

Unicast

Question 8

What is the broadcast MAC address?

Answer 8

FFFF.FFFF.FFFF

Question 9

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

Answer 9

arp -a

Question 10

What two messages are used in ping?

Answer 10

ICMP (Internet Control Message Protocol) Echo Request

ICMP (Internet Control Message Protocol) Echo Reply

Question 11

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

Answer 11

aging

Question 12

Clear all dynamic MAC addresses from the MAC Address Table:

SW1#________

Answer 12

SW1#clear mac address-table dynamic

Question 13

View the MAC Address Table:

SW1#_______

Answer 13

SW1#show mac address-table

Question 14

Clear all entries for a specific dynamic MAC address from the MAC Address Table:
SW1#_________

Answer 14

SW1#clear mac address-table dynamic address (mac-address)

Question 15

Clear all dynamic MAC addresses on a specific interface from the MAC Address Table:
SW1#_____________

Answer 15

SW1#clear mac address-table dynamic interface (interface-id)

Question 16

What is the Ethernet Type code for an ARP packet?

Answer 16

0x0806

Question 17

Command to show the ARP table on a Cisco device:

Answer 17

SW1#show arp