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Assume there are N nodes connected to a wireless access point (AP) operating on IEEE 802.11b, and every node has at least one packet to send at a given time. The nodes continuously transmit data to the AP, and also download data from it. Is the channel access opportunity among all the nodes of the network fair? Is there any reason for a node to preferentially grab the channel over the others in such a network? If so, describe some ways that this forced unfairness can be achieved and their pros and cons using the typical parameters of the IEEE 802.11b standard.
safekeeping posture of enterprise (venture) wired and wireless LANs (WLANs), steps listed in OWASP, Securing User Services, IPV4 ip address, IPV6 address format, V4 address, VPN, Deploying Voice over IP, Remote Management of Applications and Ser..
How long does it take to send a file of 640,000 bits from host A to host B over a circuit-switched network? All links are 1.536 Mbps Each link uses FDM.
List three reasons you might still want to prevent an outsider obtaining free network access by intruding into your wireless network.
Determine the smallest size subnet which can be utilized to fulfil this requirement? _______. Determine the maximum number of IP addresses which can be assigned in this size subnet?
Explain the three instruction formats which are used in MIPS. What limitations do they put on form and kind of instruction which are used in te ISA?
What factors of the various UPS systems must concern you? What would you suggest as the lowest cost solution for this situation?
Consider transferring a large file of L bytes from Host A to Host B. Assume a MSS of 1460 bytes. What is the maximum value of L such that the TCP sequence numbers are not exhausted?
Let the RTP session comprising of four users, all of which are sending and receiving packets to same multicast address. Determine RTCP bandwidth that each sender be assignied?
Write down the advantages and disadvantages of building these three separate models? What representations are used for each of these models?
Given the narrow (usable) audio bandwidth of the telephone transmission facility, nominal SNR of 56 dB (400,000), and a distortion level of
Can you configure the browser to open multiple simultaneous connections to the Web site? Write down the advantages and disadvantages of having large number of simultaneous TCP connections?
Write all IP addresses on same subnet as this one. Determine maximum number of hosts in this subnet? How many different subnets exist in IP network by using this subnet mask.
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