EBK COMPUTER NETWORKING
7th Edition
ISBN: 8220102955479
Author: Ross
Publisher: PEARSON
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Expert Solution & Answer
Chapter 7, Problem P5P
a.
Explanation of Solution
“No”, 802.11 will not fully break down since the SSID (Service Set Identifier) and MAC (Media Access Control) of every access point is different.
Reason:
- The two access point (AP) will typically have different MAC and SSID addresses. With the help of one SSID, a wireless station received to the café.
- After the arrival, there is a virtual link between the access point (AP) and the new station.
- Suppose the new station associates with first access point, a frames is send to the first access point...
b.
Explanation of Solution
Modification of answer for the given scenario:
- First the given scenario is two ISPs are send their wireless station in the same channel so that time collision will occurs, but here one access point operates on...
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Students have asked these similar questions
Suppose there are two ISPS providing WiFi access in a
particular café, with each ISP operating its own AP and having
its own IP address block.
A. Further suppose that by accident, each ISP has configured
its AP to operate over channel 11. Will the 802.11 protocol
completely break down in this situation? Discuss what
happens when two stations, each associated with a different
ISP, attempt to transmit at the same time.
B. Now suppose that one AP operates over channel 1 and the
other over channel 11. How do your answers change?
Given a scenario where there are two ISPs each running its own Access Point, and each using its own block of IP addresses.
Consider that each Access Point was configured to run over channel 1, by each of the ISPs. Would the 802.11 protocol completely break down in this scenario? Explain using the following: if there are two stations, each associated with a different ISP, describe what happens when they both attempt to transmit at the same time.
Suppose instead that one Access Point was configured to run over channel 1 and the other over channel 11. How do your answers in part a change using this scenario?
Please answer question 1 and 2.
Use a diagram to illustrate the four-way handshake protocol for channel reservation in IEEE 802.11 (i.e., WiFi). Please indicate the name of each frame, and also the idle period before each frame is transmitted. (Tips: the protocol used is CSMA/CA with RTS/CTS.)
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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Similar questions
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- Suppose a computer sends a frame to another computer on a bus topology LAN. The physical destination address of the frame is corrupted during the transmission. What happens to the frame? How can the sender be informed about the situation? Suppose a computer sends a packet at the network layer to another computer somewhere in the Internet. The logical destination address of the packet is cor- rupted. What happens to the packet? How can the source computer be informed of the situation?arrow_forwardQuestion:Now suppose that the message is segmented into 20 packets, with each packet being 1,000,000 bits long. How long does it take to move the first packet from source host to the first switch?When the first packet is being sent from the first switch to the second switch, the second packet is being sent from the source host to the first switch. At what time will the second packet be fully received at the first switch?arrow_forwardAnswer this question please.arrow_forward
- Given a TCP host whose MSS and CW values are both set to 1,460 bytes, what will the value of CW be after two packets are sent and successfully ACKed?arrow_forwardHost A and B are communicating over a TCP connection, and Host B has already received from A all bytes up through byte 126. Suppose Host A then sends two segments to Host B back-to-back. The first and second segments contain 80 and 40 bytes of data, respectively. In the first segment, the sequence number is 127, the source port number is 302, and the destination port number is 80. Host B sends an acknowledgment whenever it receives a segment from Host A. a. In the second segment sent from Host A to B, what are the sequence number, source port number, and destination port number? b. If the first segment arrives before the second segment, in the acknowledgment of the first arriving segment, what is the acknowledgment number, the source port number, and the destination port number? c. If the second segment arrives before the first segment, in the acknowledgment of the first arriving segment, what is the acknowledgment number? d. Suppose the two segments sent by A arrive in order at B. The…arrow_forwardA packet switch receives a packet and determines the outbound link to which the packet should be forwarded. When the packet arrives, one other packet is halfway done being transmitted on this outbound link and four other packets are waiting to be transmitted. Packets are transmitted in order of arrival. Suppose all packets are 1,500 bytes and the link rate is 2 Mbps. What is the queuing delay for the packet? More generally, what is the queuing delay when all packets have length L, the transmission rate is R, x bits of the currently-being-transmitted packet have been transmitted, and n packets are already in the queue?arrow_forward
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