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1. Radio Antennas work best when the diameter of the antenna is equal to the wave length of the radio wave. Reasonable antennas range from 1 cm to 5 meters in diameter. What frequency range does this cover?2. Ten signals, each requiring 4000 Hz (conventional telephone lines), are multiplexed onto a single channel using FDM. What is the minimum bandwidth required for the multiplexed channel? Assume that the guard bands are 400 Hz wide.3. Why is the PCM sampling time been set at 125 microseconds? Fully support your answer.4. How long will it take to transmit a 1 Gigabyte file from one VSAT to another using a hub of Tanenbaum's book? Assume that the uplink is 1 Mbps, the downlink is 7 Mbps, and circuit switching is used with 1.2 seconds circuit setup time.5. Calculate the transmit time in the previous question if packet switching is used instead. Assume that the packet size is 64 Kilobytes, the total switching delay in the satellite and hub is 10 microseconds per packet and the packet header size is 32 bytes.
What is the main advantage of using master pages. Explain the purpose and advantage of using styles.
Suppose all fork calls are successful. Inside node for each process, illustrate value of variable x immediately before that process terminates.
what continuing education is required for the holder of a CISSP to remain current and in good standing.
Illustrtae how nonlinear regression equation Y = AX**B can be converted into linear regression equation solvable by method of Least Squares.
Explain in scholarly detail cash-drawer management concept and its relationship to departmental Budget vs. Actual control process.
Express E and F in sum-of-minterms algebraic form.
What will the following code fragment print?
Develop a framework for the IT steering committee, explaining the roles and responsibilities of the members.
A federal agency that does not use IT acquisition best practices issued a request for proposal that requires the contractor selected to use such practices, including certification at CMMI Level 3 or above.
implement one class called parkingmeter, that is a simple model of a coin operated parking meter
Suppose a process changes its locality and size of new working set is too large to be stored into available free memory. What are some options system designers could choose from to handle this situation?
Sears is losing market share, has been acquired by K-Mart, and is eliminating jobs; Wal-mart is gaining market share and hiring. Write ethical issues involved, and which firm has a more ethical position?
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