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1. List all standards of IEEE 802.11 from a to z. Describe each of them briey in a sentence or two.
2. Compare and contrast OFDM, DSSS and FHSS in terms of various metrics. Explain the current technology with IEEE 802.11a/b/g/n/ac (i.e., tell if they use DSSS or FHSS or OFDM other form of spread spectrum).
3. Describe what MIB is. What is the di erence between a standard and an enterprise MIB?
4. Explain hidden and exposed terminal problems in wireless transmission.
5. Describe 3 attacks on WEP.
6. Probe messages are sent as part of IEEE 802.11 from the clients. Please describe the format of a Probe message.
For the efficiencies of the transformer, what power factor are we assuming for the load? Also No load losses are the same as the losses in the Core resistance under open circuit test, correct? Also do we have to do test for both the 120 tap and 2..
How does the determination of each help in understanding the response of a circuit?
Calculate the number of multiply-and-add operations the processor can use to work out the numerical value of each output sample of the digital filter and from this deduce the maximum filter order that can be implemented. Explain your logic clearly.
Most jobs involve interaction with technology in some form. Police officers have computers in their squad cars, nurses enter your blood pressure and pulse into electronic files.
The tank of liquid in the figure accelerates to the right with the fluid in rigid-body motion.
Calculate different measures of performance (L, Lc, W, WQ), when you do not buy any additional grinders. That is, when you have a single grinder. Also, calculate the cost per minute of the system with a single grinder.
A small transits system has just become part of a transit authority which will provide significantly increased funding.
Calculate the pinion wear surface durability and fatigue strength by using the BS 436 and AGMA standards and give comments from the calculated values.
A PCM system uses a uniform quantizer followed by a 7-bit binary encoder. The hit rate of the system is equal to 50 x 106b/s. What is the maximum message bandwidth for which the system operates satisfactorily?
1. identify at least four of the key decisions made during the pre-initiating and initiating processes. do you think
discuss the type of membrane and the configuration used. In your discussion, include major associated equipment in the separation process circuit, and the key operational parameters that need to be controlled and monitored
Identify an example of a biological organism or process that has been used to create fracture resistant materials. Locate a relevant journal article (or articles) and describe the following:
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