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Choose all right statements of packet scheduling packet scheduling decides which packet to send next first come first serve is the most fair scheduling Strict priority scheduling could result in starvation to low priority queue in which packets can wait for very long time round robin prevent low priority starvation, therefore it is the best scheduling. Weighted fair queuing achieves priority scheduling but prevents starvation Where does IP destination address lookup happen? inside the switching fabric O at an input port O at the router processor O at an output port what protocol constitutes the "thin waist' of the Internet protocol stack HTTP UDP IP DNS DHCP Inside a router. Choose all right descriptions of router components and their function planes Input ports which are functioning in the data plane switching fabric which is functioning in the data plane Output ports which are functioning in the control plane Routing processor which is functioning in the data plane Longest prefix matching for the following forwarding table. Suppose a datagram arrives at the router, with destination address 00110100. To which interface will this datagram be forwarded using longest-prefix matching? Prefix Match Interface 00 1 001 2 0011 3 00110 4. interfaces 4, 3, 2 and 1 interface 1 interface 4 interface 4, 3, 2, or 1