Computer Science 825
                         Quiz B           Name _______________________

1. Which was of the following was NOT a design objective of IPV6.

   a. Enlarge the internet address      b. Provide better support
      space.                               for mobile hosts.

   c. Provide additional fragmentation  d. Reduce computing time and table
      facilities to make it more ATM       size requirments in backbone
      compatible.                          routers

2. When compared to IPV4 the size of the address space in IPV6
   is increased by a factor of: (ipv6 size = ipv4 size * factor)
   (size of address space = Upper bound on # of distinct addresses)

   a. 4                                  b. 2^123

   c. 2^128                              d. 2^96

3. The number of bits used to determine the desirability of
   discarding a cell in ATM is:

   a. 1                                  b. 4

   c. 8                                  d. 0 - ATM doesn't discard cells

4. An ARP request carries (CIRCLE ALL THAT APPLY)

   a. The MAC address of the             b. The IP address of the
      source                                source

   c. The MAC address of the             d. The IP address of the
      dest                                  dest

5. When an ARP request/reply exchange occurs,

   a. The requestor updates its          b. The requestee updates
      ARP cache                             its ARP cache

   c. Both requestor and requestee       d. Neither updates its ARP
      update their ARP cache.               cache since entries can only
                                            be changed with the ARP cmd.

6. Which of the following is NOT one of the factors used in defining
   the original ATM service categories

   a. reliable vs non reliable           b. real time vs non real time
      service

   c. connection oriented vs             d. constant vs variable bit
      connection less service               rate

7. IP packets can be up to 64KB in size, but there are only 13 bits
   in the fragment offset field. How can a full size packet possibly
   be fragmented and reassembled correctly?






8. We discussed in class two functions performed in IPV4 that were
   totally eliminated in IPV6. Identify both of them.

   a -


   b -

9. Today's ATM traffic categories include CBR, two types of VBR,
   ABR and one other:

   a - What is the name of the other category


   b - What are the "rules" governing its cell admission and discard
       rates.


10. The type of service provided by IP and ATM is properly
    contrasted as follows:

    a. IP provides unreliable service   b. IP provides connection
       but ATM is reliable.                oriented service but ATM
                                           is connection less

    c. ATM provides unreliable service  b. ATM provides connection
       but IP is reliable.                 oriented service but IP
                                           is connection less