Routing IPv4 & IPv6

Question 1

What protocol maps IP to MAC Address

Answer 1

ARP

Question 2

ARP

Answer 2

Address Resolution Protocol

Question 3

What does ARP do?

Answer 3

Map IP address to MAC address

Question 4

ARP Cache

Answer 4

Local device cache for IP to MAC translations

Question 5

ARP -A

Answer 5

Command to view ARP table on a PC

Question 6

CLI command to view ARP table

Answer 6

ARP -A

Question 7

ARP -D*

Answer 7

Delete ARP Cache (Admin Rights)

Question 8

Alternate name for Router

Answer 8

Gateway

Question 9

Route Print

Answer 9

List PCs routing table

Question 10

Show IP Route

Answer 10

Show routing table on router

Question 11

Command to add static route to router

Answer 11

IP Route (Dest. Network) (Dest. Subnet) (Next Hop IP)

Question 12

What is a broadcast message

Answer 12

All FFs in destination field. Switch sends out packet to all fields except the originating one

Question 13

What is a multicast message

Answer 13

Switch records IGMP PCs and only sends packets to the subscribed group

Question 14

What happens to a multicast message on a switch without support for IGMP?

Answer 14

Message is sent out all interfaces like a broadcast message

Question 15

What does a router do when first initialized for IPv6

Answer 15

Router Advertisement

Question 16

What is a Router Advertisement?

Answer 16

Router sends its MAC address, Network Prefix/Mask, IPv6 client options via multicast

Question 17

IPv6, what does a device use when they are missing information?

Answer 17

Neighbor Solicitation

Question 18

Command to configure IPv6 link local on router

Answer 18

ipv6 address fe80::1 link-local