DATA LINK CONTROL (DLC)
OBJECTIVE: PROVIDE AN
ERROR FREE BIT PIPE
PACKET
Chapter 3
PACKET
DLC
Data Link Layer &
Error Control Coding
HEADER
SEQUENCE
NUMBERS
FRAME
Do Young Eun
DATA LINK CONTROL (2)
RE
ECE/CSC 570 Section 001
Fall 2008
December 10, 2008
Questions 1 10 each carry 3 marks. Answer only by placing a check mark to indicate
whether the statement is true of false in the appropriate box, an
ECE/CSC 570 - Sections 3 and 601, Computer Networks
Homework #5 (Due on Nov. 27, 2012)
Grading TA: Xin Xu
1. (10 points) In the lecture note for Quality of Service, slide # 29, Show your steps
to obta
ECE/CSC 570 - Sections 3 and 601, Computer Networks
Fall 2012, Homework #2 Solutions
1. (10 points) In a constellation diagram, eight points lie on a circle of radius A centered
on the origin. Label t
Omran Alrowahi 1
Fall 2015 -CSC/ECE 570 Computer
Networks - Homework #6
Question 1 (6p) In Go-Back-N protocol, assume the window size W = 4, and the sequence
number is from 0-7, that is, [0,1,2,3,4,5,
ECE/CSC 570 - Sections 3 and 601, Computer Networks
Homework #3 (Due on Sept. 27, 2012)
You are strongly recommended to read relevant sections in Chapter 3 of the main reference
(Tanenbaum).
1. (15 po
ECE/CSC 570 Sections 3 and 601, Computer Networks, Fall 2012
OPNET Lab #2
Due Date: Nov. 20 (in class) for on-campus students
Nov. 21, 11:59PM for EOL students
Responsible TA: Shalini Chauhan, schauha
Why Probability ?
Area of mathematics most fundamentally related to
computer networking
ECE/CSC 570
Extensive use in modeling network traffic
Leads on to more powerful analysis tools and modeling
para
ECE/CSC 570 - Sections 3 and 601, Computer Networks
Homework #4 (Due on Nov. 1, 2012)
Grading TA: Xin Xu
You are strongly recommended to read relevant sections in Chapter 4 of the main reference
(Tane
ECE/CSC 570 - Sections 3 and 601, Computer Networks
Homework #2 (Due on Sept. 18, 2012)
While this HW#2 is rather long and contains more challenging problems than those in
HW#1, I suggest you try (wit
ECE/CSC 570 - Sections 3 and 601, Computer Networks
Fall 2012, Homework #1 Solutions
1. (6 points) Which of the OSI layers handle each of the following:
(a) Providing reliable, connection-oriented pat
ECE/CSC 570 - Sections 3 and 601, Computer Networks
Homework #5 Solution, Grading TA: Xin Xu
1. (10 points) In the lecture note for Quality of Service, slide # 29, Show your steps
to obtain the gure (
ECE/CSC570001,601,Fall,2010
Study Guide 2
DataLinkControlMediumAccessControl
1. (Tanenbaum, 4.3) Consider the delay of pure ALOHA versus slotted ALOHA at low
load. Which one is less? Explain your answ
ECE/CSC 570 - Sections 3 and 601, Computer Networks
Homework #4 Solution, Grading TA: Xin Xu
1. (20 points) Consider a nite population slotted ALOHA with N users, each of which
generates a frame with
ECE/CSC 570 - Sections 3 and 601, Computer Networks
Fall 2012, Homework #3 Solutions
1. (15 points) A 9-bit message with binary value 100101011 is to be encoded using an
even-parity Hamming code (as i
Answers : Wireshark Lab 3: ICMP
Ans 1) The IP address of my host is 192.168.1.19 .The IP address of destination host is
143.89.14.2
Ans 2) The ICMP packet communicate at the network layer, among hosts
Answers: Wireshark Lab: IP
Ans 1)
The IP address of my computer is 192.168.1.19
Ans 2)
The value in the upper layer protocol field is ICMP (0x01) or ICMP(1)
Ans 3)
There are 20 bytes in the IP header.
ECE/CSC 570 Sections 3 and 601, Fall 2017
Homework #2 Solution
1. (10 points)
(a) If all the points are equidistant from the origin, they all have the same amplitude,
so amplitude modulation is not be
ECE/CSC 570 Sections 3 and 601, Fall 2017
Homework #3 Solution
1. (10 points) Let events A, B, C denote the Case 1, 2, 3, respectively. we have 8 bit-long
packet transmission, where each bit is subjec
Physical Layer
Chapter 2: Physical Layer
ECE/CSC 570, Fall 2016
Do Young Eun
Do Young Eun
ECE/CSC 570, Fall 2016
Contents
Context
Lowest of OSI layers
Bandwidth vs. data rate
Provides a bit pipe
Acces
Network Layer Design Issues
Chapter 5: Network Layer
Network layer deals with how the packets are routed from
source to destination.
Store-and-Forward Packet Switching
Services Provided to the Transpo
Omran Alrowahi 1
Fall 2015 -CSC/ECE 570 Computer
Networks - Homework #2
Question 1 (4p) Suppose that a certain communications protocol involves a per-packet overhead
of 100 bytes for headers and frami
Omran Alrowahi 1
Fall 2015 -CSC/ECE 570 Computer
Networks - Homework #1
Question 1 (4p) Use ping to find network information or performance for the following network
performance for 10 rounds ( up to
Why Probability ?
ECE/CSC 570
Extensive use in modeling network traffic
Area of mathematics most fundamentally related to
computer networking
Leads on to more powerful analysis tools and modeling
para
Congestion Control Algorithms
Congestion results when too much traffic is offered;
performance degrades due to loss/retransmissions
Goodput (=useful packets) trails offered load
Chapter 5: Network La