W9L3 Multicast Addressing

Question 1

OSPF

Answer 1

Open Shortest Path First

Question 2

Open Shortest Path First (OSPF)

Answer 2

each router ‘floods’ available routes to all other routes

Question 3

Unicast

Answer 3

System sends data to routers individually

Question 4

Broadcast

Answer 4

System sends packet that the network duplicates so all systems receiver a copy

Question 5

Multicast

Answer 5

All interested systems joins a group, system sends packet once and the network duplicates packets appropriately. Only sent to the one address that the receivers are listening to.

Question 6

What address does OSPF use to send/receive updates

Answer 6

224.0.0.5

Question 7

IPv4 address range

Answer 7

224.0.0.0 -> 239.255.255.255

Question 8

How is multicast done on Ethernet

Answer 8

No multicast support. So instead broadcasted with a filter using network cards

Question 9

What packets can you and can’t you multicast

Answer 9

TCP can’t be multicast be it assumes a single sender /r receiver.
UDP can

Question 10

Open Shortest Path First

Answer 10

OSPF

Question 11

each router ‘floods’ available routes to all other routes

Answer 11

Open Shortest Path First (OSPF)

Question 12

System sends data to routers individually

Answer 12

Unicast

Question 13

System sends packet that the network duplicates so all systems receiver a copy

Answer 13

Broadcast

Question 14

All interested systems joins a group, system sends packet once and the network duplicates packets appropriately. Only sent to the one address that the receivers are listening to.

Answer 14

Multicast