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CS 3240: Data-Comm and Networks
(Fall 2015)

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    Homework 9
    Due: Wed Oct 28 2015

  1. 0 points: Abra is about to send a frame to MAC address 17:3E:22:DA:64:1F. Is this a unicast, broadcast, or multicast address? Is it locally or globally assigned?

  2. 40 points: Kadabra is about to send a frame to MAC address 4E:67:94:2A:B2:23. Is this a unicast, broadcast, or multicast address? Is it locally or globally assigned?

  3. 40 points: Alakazam is about to send a frame to MAC address 3D:61:BB:76:12:14. Is this a unicast, broadcast, or multicast address? Is it locally or globally assigned?

  4. 40 points: Bellsprout is about to send a frame to MAC address FF:FF:FF:FF:FF:FF. Is this a unicast, broadcast, or multicast address? Is it locally or globally assigned?

  5. 0 points: Squirtle sends out a request packet using the ARP in order to get Bulbasaur's MAC address. Squirtle receives a packet that lists Bulbasaur's address as: B7:11:5F:39:C3:C9. Has an error occurred? How can you tell?

  6. 80 points: Charmander sends out a request packet using the ARP in order to get Jigglypuff's MAC address. Charmander receives a packet that lists Jigglypuff's address as: 29:FA:12:72:2C:0E. Charmander notices that an error has occurred, but the error-correcting data suggests that only one bit was flipped. What is Jigglypuff's actual MAC address? Why?

  7. Total Points: 200