Computer Science 826
                           Quiz 1            Name____________________

1. Assignment of Internet addresses has been delegated to ARIN, APNIC,
   and RIPE by:

   a. IANA                           b. IETF

   c. ICANN                          d. IAB


2. An ARP request is transmitted as the data part of a

   a. TCP packet                       b. UDP packet

   c. IP  packet                       d. IEEE 802.2 packet


3. Identify the network layer at which each of the following protocols
   resides.

   ___ a. IP               1. Link
                           2. Network
   ___ b. FTP              3. Transport
                           4. Application
   ___ c. UDP


4. For ARP messages a link level broadcast is used:

   a. For the request but           b. For the reply
      not for the reply                but not for the request

   c. For the request and           d. For neither one.
      the reply

Consider the three possible link layer routing strategies:

   a - Eliminate ARP and BROADCAST all IP packets
   b - Use ARP but ELIMINATE the ARP Cache
   c - Use normal ARP.

5. Rank the three strategies from 1 to 3 according to the TOTAL
   number of packets transmitted on the Link (1 is least; 3 most)
   (Indicate "Tie" if and where appropriate).

   1 -

   2 -

   3 -

6. Rank the three strategies from 1 to 3 according to the Least
   number of packets that are received, processed, and discarded
   by a host because they were actually destined for another host.
   (Indicate "Tie" if and where appropriate).

   1 -

   2 -

   3 -


7. An IP address of all zeros is used as a:

   a. Destination address for        b. A source address for a
      an internet-wide broadcast.       host that doesn't know its own
                                        IP address.

   c. A broadcast on the local       d. None of the above
      ethernet


8. Identify TWO distinct benefits that can be derived from the
   use of GRATUITOUS Arp.

   a.



   b.


9. a. What is the subnet mask (in dotted DECIMAL notation) for a class B
      network in which 5 bits are used as a host address.




   b. How many subnets are possible in such a configuration?





   c. Suppose my subnetwork mask is 255.255.255.192 and my host address
      is 130.127.48.130 Answer T or F depending upon whether each of
      the following is on the same subnetwork with me.

      ___ 1. 130.127.48.120

      ___ 2. 130.127.48.187