Computer Networks (2019/2020)

Course code
Name of lecturer
Damiano Carra
Damiano Carra
Number of ECTS credits allocated
Academic sector
Language of instruction
I semestre dal Oct 1, 2019 al Jan 31, 2020.

Lesson timetable

Go to lesson schedule

Learning outcomes

The course aims to provide the principles and the main planning techniques of computer networks, with particular emphasis on the concepts related to the division of functions into levels and the man- agement of network resources.

At the end of the course the student must demonstrate knowledge and understanding of network and concurrent protocols; have the ability to apply the acquired knowledge and understanding skills to choose the type of appropriate network service to support specific applications, combined with an application analysis capability to determine the features useful in the design phase; have the ability to explain the transformation of information and the path followed by it from source to destination; know how to develop the skills necessary to continue learning the different protocols based on their functionality in the development of network applications.


* General concepts:
-- Classification: WAN, MAN, LAN;
-- Circuit-switched and packet-switched networks;
-- Reference models: ISO-OSI and TCP/IP.

* The Application Level:
-- The client/server model;
-- World Wide Web (HTTP);
-- File Transfer Protocol (FTP);
-- Electronic mail (SMTP, POP3 e IMAP);
-- Domain Name Service (DNS).

* The Transport Level:
-- Aims and services;
-- TCP (3-way handshaking, flow control, retransmission, congestion control);
-- UDP;

* The Network Level:
-- The IP protocol:
---- Packet format;
---- Address format and use, netmask, ARP and RARP;
---- Class-less inter-domain routing (CIDR);
-- Dynamic host configuration protocol (DHCP);
-- Internet control management protocol (ICMP);
-- Routing protocols (distance vector, link state routing);
-- IPv6;
-- Network Address Translation (NAT).

* The Data-Link Level:
-- Framing;
-- Multple access;
-- The MAC sub-layer: Aloha, CSMA, CSMA/CD, CSMA/CA;
-- Bridge, switch and LAN;
-- Wireless LAN.

Reference books
Author Title Publisher Year ISBN Note
Andrew S. Tanenbaum Reti di calcolatori (Edizione 4) Pearson - Prentice Hall 2003 8871921828
J.F. Kurose, K.W. Ross Reti di calcolatori e Internet - Un approccio top-down (Edizione 6) Pearson Education Italia 2013 9788871929385
B.A. Forouzan, F. Mosharraf Reti di calcolatori - Un approccio top-down (Edizione 1) McGraw-Hill 2013 9788838668197

Assessment methods and criteria

The examination aims at verifying the comprehension of course contents and the capability to apply these contents in the resolution of some exercises.

Examination consists of a written test with three questions about the theory and three numerical exercises.
The total score that can be obtained from the questions about the theory is 12 points. The student must obtain at least 7 points int his part, otherwise the examination fails and the exercises are not evaluated.
The total score that can be obtained from the exercises is 21 points. The final score is the sum the points obtained from the questions and from the exercises. If the final score is less than 17 points, the examination fails. If it is equal to 17 points, the student must sustain an oral exam. If the final score is equal to or greater than 18 points, the exam is passed, unless the examiner asks for a compulsory additional oral exam. If the exam is passed, the student may ask for an additional oral exam. The oral exam consists of at least three questions about the theory. The final score is given by the mean of the scores obtained in the written and oral exams.