Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Expert Solution & Answer
Chapter 3, Problem P14P
Explanation of Solution
Case 1 “NAK-only protocol is not preferable”:
If the sender sends the packet irregularly, then the NAK is not only the preferred protocol. Hence it is better to use the protocol, which uses ACKs.
- One of the major disadvantages of NAK only protocol is it can find whether the packet has been lost only when the next incoming packet is acknowledged by the receiver.
- While the receiver analyzes the packet loss, it sends NAK to the sender. Finally the sender retransmits both the lost packet and next incoming packet...
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
For a hierarchical carry look-ahead adder, GO can be written like below. Find the gate delay needed to obtain GO without fan-in and with a fan-in of 3 inputs.
GO=g7+p7g6+p7p6g5+p7p6p5g4+p7p6p5p4g3+p7p6p5p4p3g2+p7p6p5p4p3p2g1+p7p6p
5p4p3p2p1g0
Select one:
a.
O b.
GOO
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B
GO without fan-in limitation will require 3 gate delays
GO with fan-in limitation of 3 will require 5 gate delays
GO without fan-in limitation will require 4 gate delays
• GO with fan-in of 3 will require 3 gate delays
C.
• GO without fan-in limitation will require 5 gate delays
GO with fan-in limitation of 3 will require 3 gate delays
O d.
GO without fan-in limitation will require 2 gate delays
GO with fan-in limitation of 3 will require 4 gate delays
1. Show that S₁ = S2 if and only if S₁ U S2 = S₁n S2.
2. Show that if S1 and S2 are finite sets with |S₁ = n and |S₂| = m, then
S₁ U S2 ≤n+m.
3. If language L is regular and is given by L ={awa : w = {a, b} *}
Then show that L² is regular.
Problem 3: Consider the two-link planar elbow manipulator shown below with link information: a₁ = 3,
a₂ = 3.
a2
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3/0
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ai
| di | 0i |
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02.
12
01
0 0 01
02
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0
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01
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(a) Find the location of the end-effector P° if the joint angles are:
0₁ = 140°, 0₂ = 30°
(b) Find the values of joint variables 01, 02 if the robotic manipulator is commanded to reach the desired
location of Pº = [4.5, 3,0]. Notice there are possibly two sets of solutions.
(c) Also sketch the two poses of the robot for the computed joint variables.
Page 5 of 7
Chapter 3 Solutions
Computer Networking: A Top-Down Approach (7th Edition)
Ch. 3 - Prob. R1RQCh. 3 - Prob. R2RQCh. 3 - Consider a TCP connection between Host A and Host...Ch. 3 - Prob. R4RQCh. 3 - Prob. R5RQCh. 3 - Prob. R6RQCh. 3 - Suppose a process in Host C has a UDP socket with...Ch. 3 - Prob. R8RQCh. 3 - Prob. R9RQCh. 3 - In our rdt protocols, why did we need to introduce...
Ch. 3 - Prob. R11RQCh. 3 - Prob. R12RQCh. 3 - Prob. R13RQCh. 3 - Prob. R14RQCh. 3 - Suppose Host A sends two TCP segments back to back...Ch. 3 - Prob. R16RQCh. 3 - Prob. R17RQCh. 3 - Prob. R18RQCh. 3 - Prob. R19RQCh. 3 - Prob. P1PCh. 3 - Prob. P2PCh. 3 - UDP and TCP use 1s complement for their checksums....Ch. 3 - Prob. P4PCh. 3 - Prob. P5PCh. 3 - Prob. P6PCh. 3 - Prob. P7PCh. 3 - Prob. P8PCh. 3 - Prob. P9PCh. 3 - Prob. P10PCh. 3 - Prob. P11PCh. 3 - Prob. P12PCh. 3 - Prob. P13PCh. 3 - Prob. P14PCh. 3 - Prob. P15PCh. 3 - Prob. P16PCh. 3 - Prob. P17PCh. 3 - Prob. P21PCh. 3 - Prob. P22PCh. 3 - Prob. P25PCh. 3 - Prob. P26PCh. 3 - Prob. P27PCh. 3 - Host A and B are directly connected with a 100...Ch. 3 - Prob. P29PCh. 3 - Prob. P30PCh. 3 - Prob. P31PCh. 3 - Prob. P33PCh. 3 - Prob. P34PCh. 3 - Prob. P35PCh. 3 - Prob. P37PCh. 3 - Prob. P38PCh. 3 - Prob. P39PCh. 3 - Prob. P41PCh. 3 - Prob. P42PCh. 3 - Prob. P43PCh. 3 - Prob. P44PCh. 3 - Prob. P45PCh. 3 - Prob. P46PCh. 3 - Prob. P47PCh. 3 - Prob. P48PCh. 3 - Prob. P49PCh. 3 - Prob. P51PCh. 3 - Prob. P53PCh. 3 - Prob. P55P
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