EBK COMPUTER NETWORKING
7th Edition
ISBN: 8220102955479
Author: Ross
Publisher: PEARSON
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Question
Chapter 7, Problem R1RQ
Program Plan Intro
Wireless network:
- In
computer network , the wireless network uses wireless data connections for connecting network nodes. - It is a process by which telecommunications network, business installations and homes avoid the costly process of introducing cables to provide connection between many equipment locations.
- Example of wireless network include Wireless Local Area Networks (WLANs), cell phone networks, satellite communication networks and wireless sensor network.
Expert Solution & Answer
Explanation of Solution
Operation of wireless network in infrastructure mode:
- Infrastructure mode is a networking framework of 802.11 that uses access point to communicate with each other.
- With the use of infrastructure mode the wireless devices can communicate with each other.
- The operation of infrastructure mode where each wireless hosts are connected to the large network through base network which is termed as access point.
Mode of operation:
- If the network is not in the infrastructure mode, it is consider as an ad-hoc mode of operation.
- The ad-hoc mode communicates each other without the help of access point.
Difference between mode of operation and infrastructure mode:
|
Mode of operation | Infrastructure mode |
|
This device is used to communicate each other directly. |
The wireless devices can communicate with each other in the infrastructure mode. |
|
The access point is not used here to communicate with each other. |
Infrastructure mode need access point to communicate with each other. |
|
Ad-hoc mode communicate only with other ad-hoc devices. |
The access point controls wireless communication and offer many important benefits over an ad-hoc network. |
|
Security is less in ad-hoc mode when compare with infrastructure mode. |
It support high level security, possibly faster data transmission speeds. |
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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
B
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
S
3/0
Link | a | ai | di
ai
| di | 0i |
มา
02
21
02.
12
01
0 0 01
02
0
0
02
01
To
(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 7 Solutions
EBK COMPUTER NETWORKING
Ch. 7 - Prob. R1RQCh. 7 - Prob. R2RQCh. 7 - Prob. R3RQCh. 7 - Prob. R4RQCh. 7 - Prob. R5RQCh. 7 - Prob. R6RQCh. 7 - Prob. R7RQCh. 7 - Prob. R8RQCh. 7 - Prob. R9RQCh. 7 - Prob. R10RQ
Ch. 7 - Prob. R11RQCh. 7 - Prob. R12RQCh. 7 - Prob. R13RQCh. 7 - Prob. R14RQCh. 7 - Prob. R15RQCh. 7 - Prob. R16RQCh. 7 - Prob. R17RQCh. 7 - Prob. R18RQCh. 7 - Prob. R19RQCh. 7 - Prob. R20RQCh. 7 - Prob. R21RQCh. 7 - Prob. R22RQCh. 7 - Prob. R23RQCh. 7 - Prob. P1PCh. 7 - Prob. P2PCh. 7 - Prob. P3PCh. 7 - Prob. P5PCh. 7 - Prob. P6PCh. 7 - Prob. P7PCh. 7 - Prob. P8PCh. 7 - Prob. P10PCh. 7 - Prob. P11PCh. 7 - Prob. P12PCh. 7 - Prob. P13PCh. 7 - Prob. P14PCh. 7 - Prob. P15PCh. 7 - Prob. P16P
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