q12,q13,q14

Question 12 1 Point Which of the following doesn't correspond to the network layer data plane function? A Dropping a datagram due to a congested (full) output buffer. Looking up address bits in an arriving datagram header in the forwarding table. Moving an arriving datagram from a router's input port to output port. D Computing the contents of the forwarding table. Question 13 1 Point Which of the following actions correspond to SDN approach? A router exchanges messages with another router, indicating the cost for it (the sending router) to reach a destination host. B All routers in the network send information about their incoming and outgoing links to a logically centralized controller All routers send information about their incoming and outgoing links to other routers in the network. All routers in the network perform routing algorithms and generate routing table. D Question 14 1 Point Which of the following is used by hosts and routers to report errors? A ICMP B NAT CIDR D DHCP