ECE4603 Fall'00 Homework Assignment #1 (v.2.0)



Due before 3:00 p.m. Tuesday 9/5/00

Instructions.  Copy this document from the Web Page, or save it from 
your email program, as a "text" file.  Edit it in a word processor to
add the answers into the square brackets after each question.  Save it
as a "text" file, and email it back to me:
(john.copeland@ece.gatech.edu).

Email the completed document as the body of a message (not as an
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#1.  Identify the following signals as being considered analog (A), or 
digital (D). 

[ A ]     Music (sound).
[ D ]     Music stored on a CD.
[ D ]     Serial port on a PC.
[ A ]     1925-era Telephone line.
[ D ]     ISDN telephone line.


#2.  Types of connections, possible answers:

A.  Connection oriented (A).
B.  Datagram (each packet travels an independent route (B).

[ A ]   Analog telephone system voice call.
[ A ]   ISDN telephone system telephone call.
[ B ]   IP Network layer connection, over TCP/IP network. 
[ A ]   TCP Transport layer connection, over TCP/IP network.
[ B ]   UDP Transport layer connection, over TCP/IP network.
[ A ]   ATM network permanent virtual circuit.
[ A ]   Any circuit that requires a setup phase and a take-down phase.

#3.  Indicate the type of Network in the list A to G which best matches
the statement.  For example, if the statement defines a "Packet Switched 
Network," but is not specific either a "Datagram Network" or a "Virtual 
Circuit Network," use answer D.


A - Communication Network-
B - - Switched Network
C - - - Circuit Switched Network -
D - - - Packet Switched Network-
E - - - - Datagram Network - (would include the new "switched Ethernet)
F - - - - Virtual Circuit Network-
G - - Packet Broadcast Network-
H - - - Packet Terrestrial Network
I - - - Satellite Radio Network
J - - - Local Area Network (shared bus type)



[ A ] - Carries data between hosts (or stations) connected to nodes.
[ G ] - Ethernet (early version) and Token Ring.
[   ] - Every packet travels independently (possibly different routes)
[   ] - Virtual circuits have to be set up for packets in a connection.
[   ] - Packets may arrive out of sequence.
[   ] - Real (constant bit rate or bandwidth) circuits have to be set up.
[ G ] - Transmission media has to be shared by all nodes. 
        
        
        
#5.   Indicate whether the following used hierarchical addresses (H) or
flat addresses (F).

[ H ]  Postal service (ZIP codes)
[ H ]  Telephone numbers
[ H ]  Internet IP addresses
[ F ]  Ethernet addresses

NEW VERSIONS OF QUESTIONS 4 and 5:

#4. World Wide Web #4. (answers are 2 to 4 letter acronyms (TCP, UDP, HTTP, HTML, SMTP, FTP, IP, UDP, ARP).

[ HTTP ]  Application Layer Protocol designed for WWW servers and Browsers.
[ HTML ]  Document formatting language for Web pages.
[ FTP  ]  Application Layer Protocol designed for file transfer.
[ IP   ] Network layer that envelops and carries data over long distances.
[ TCP  ]  Transport Layer that sets up a reliable connection.
[ UDP  ]  Transport Layer that send short,independent messages.

#5.   Indicate whether the following used hierarchical addresses (H) or flat addresses (F).
[ H ]  Postal service ZIP codes ( 3.... is SE, 30... is north Ga., 303.. is Atlanta).
[ H ]  Telephone numbers
[ H ]  Internet IP addresses
[ F ]  Ethernet addresses
[ F ]  Postal Service street names in a town.

***END_HW***