192.168.20.0/24 AS2 192.168.10.0/24 17.0.0.0/8 16000/ 18.0.0.0/ L30.0/24 R1 15.00.0/ AS1 130.10.0.0/16 10.0.0.0/a 130.20.0.0/26 R4 R3 AS4 11.000/ 10.30.0.0/16 AS3 Figure 1: Network topology for question 2(a). a) Formulate and write down the reachability table for the above topology in the Figure 1. Is it possible to decrease the size of the table with the help of aggregation? If possible, show the final table as well. And also explain the importance of different path attributes in finding the best path using BGP protocol for the above topology. b) Communication involving mobile IP can be inefficient. The inefficiency can be severe or moderate. With the help of diagrams, explain those inefficiencies and also write down the solution to those inefficiencies. c) Each router inside an AS has its intra-domain routing table (RIP, OSPF, etc.) for forwarding packets inside its own AS. Why does the speaker router not share this routing information with neighbor ASs? How does the I-BGP help in this regard?

The Science of Computing Mystery Mania Six men: Bill Fox, Tom Smith, Robert Stevenson, Fred Edison, Larry Davis, and John Harrison were in a library together. Suddenly, the lights went out. When the lights came back on, Bill Fox was found shot. The other detectives have investigated; questioned the suspects, the witnesses, and people who know the suspects; and have collected physical evidence from the crime scene. They have collected 14 clues but have not been able to solve the crime. It's now up to you. Note that no two suspects have the same height, color car, color umbrella, color shirt, or color shoes. The clues: • John Harrison owns a purple car Tom Smith is 5'3" tall • The suspect who was wearing a yellow shirt owns a red car The suspect who is 5'6" tall was wearing a blue shirt • The suspect who owns a red car is 6'3" tall • The suspect who was carrying a yellow umbrella is not the one who owns a green car • The suspect who is 6' tall is not the one who was wearing a black shirt…

In what year did John von Neumann get his doctoral degree?

Is there any way to tell how John von Neumann's educational background influenced his mathematical work?