9.All autonomous systems run the same inter-AS routing protocol. This protocol is known as

AS

BGP

IS-IS

OSPF

10. Consider the Border Gateway Protocol. A gateway router runs the __________ protocol.

eBGP

iBGP

Both of the above are true.

None of the above are true.

11. OpenFlow is implemented in most, if not all, SDN controllers.

true or false

12. ICMP messages are carried in TCP segments.

true or false

13. ICMP messages contain __________ in addition to a type and code field.

a routing table

encrypted data

the first few bytes of an IP datagram

sequence numbers 14. ICMP is used by hosts and routers to communicate __________ information. application layer link layer network layer transport layer 15. Which of the following causes Traceroute to stop sending UDP packets? A port unreachable message is received A web page is returned The outport buffer is empty The TTL expires

11.