ITEC350
Study Guideline for Midterm Exam
Please study based on the powerpoint slides which we used in
class. All the powerpoint
slides are posted on the class calendar and lecture notes in D2L.
Classification of Interconnected processor by scale
o
PAN
o
LAN
o
MAN
o
WAN
Difference between Connectionless and Connection oriented
OSI 7 layer
o
You should memorize the OSI 7 layer
protocol stack.
o
You need to understand what each layer does.
TCP/IP
o
Protocol stack (4
layers: Network Interface, Internet, Transport, Application)
Segmentation
& Reassembly
Multiplexing
o
What is Frequency Division Multiplexing?
o
What is Time Division Multiplexing?
Difference between a packet and a frame
What do
the following acronyms stand for?
o
HTTP
o
TCP
o
UDP
o
IP
o
OSI
o
DNS
o
RTP
o
ICMP
o
ARP
Encapsulation
What are Domain Name, IP address, MAC address?
IP addresses
o
Special IP addresses
o
Class A, Class B, Class C
o
Conversion between the dotted decimal
representation and the binary representation of IP addresses
o
Subnetting
¡×
please review your homework
1
¡×
Why subnets?
Nonroutable addresses
What is promiscuous mode?
DNS
o
What is DNS? (You should state that DNS translates
Domain name to IP address.)
o
How DNS works? (http://cr.yp.to/djbdns/intro-dns.html)
o
.arpa
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Why do we need .arpa?
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What is reverse lookup?
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How the reverse lookup works? (http://cr.yp.to/djbdns/intro-dns.html#reverse)
Line
Coding
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Unipolar NRZ
o
Polar NRZ
o
NRZ-inverted (differential encoding)
o
Bipolar encoding
o
o
Differential
Error Detection & Correction
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Single Parity Check
o
Two Dimensional Parity Check
o
CRC (Cyclic Redundancy Check) Code
What is difference between a Router and a Gateway?
Sample
Questions from the textbook
o
(Page 92) Problem 2.3, 2.4, and 2.6
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(Page 93) Problem 2.13
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(Page 94) Problem 2.28
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(Page 119) Problem 3.60
Sample
Exam: Exam 1 of Spring 2003 semester
o
Please note that the textbook has been changed. Thus,
ignore the question 5 and the question 9 in the sample exam.