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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.
How many IP addresses would they have per subnet?
Assume the material is to be transmitted over T-1 facility (1.544 Mbps). How long will it take, exclusive of overhead, to transmit volume?
Outline the design of a wireless network to support user mobility over a wide area. Include in your answer a discussion of addressing, routing and the used of fixed versus ad hoc network access nodes or base stations.
Do you believe that any form of document content validation must be applied to web pages before they are placed in public domain? That is, some form of assurance that they don't contain completely incorrect information.
Let RTP session comprising of four users, all of which are sending and receiving packets to same multicast address. Find out RTCP bandwidth will each sender be allocated?
Describe CDMA (code division multiple access), that is used in GPS and Qualcomm satellite phone network, also other communication standards.
Social Networking is one of the hottest topics in knowledge management. Is it knowledge management?
Assume that four events need 35,20,10, and x me=sec of CPU time, respectively. Dtermine the largest value of x for which system is schedulable?
Determine the theoretical maximum channel capacity (Kbps) of traditional telephone lines (POTS)? Will that be the actual maximum channel capacity?
Depreciation will be calculated using the 3-year MACRS rates of 33%, 45%, 15%, and 7% for the first through the fourth year, respectively. Looner Industries' marginal tax rate is 40%, and its cost of capital is 10%. Should the plant be built?
Explain how the relative speed of the 100BaseT LANs used at each location compares to accessing the WAN link between the two sites.
Using Ethernet Network Interface Cards or NICs, diagram simplest connection between two computers which will allow for communications and resource sharing.
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