Computers and Technology, 17.04.2020 00:28 VamL6008
13. Suppose an 802.11b station is configured to always reserve the channel with the RTS/CTS sequence. Suppose this station suddenly wants to transmit 2,500 bytes of data, and all other stations are idle currently. As a function of SIFS and DIFS, and ignore propagation delay and assuming no bits errors, calculate time required to transmit the frame and receive the acknowledgement. (Assume the transmission rate of 802.11b is 10Mbps, SIFS is 20 μs, DIFS = SIFS + 2 * slot time, CTS=RTS=ACK=slot time, and slot time = transmission time of an empty frame which is 125 bytes)
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Jackson is teaching the decimal number system. he wants his students to know how to expand numbers by powers of 10. which is the correct order in which digits are assigned values in the decimal number system?
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Select the correct answer. a company wants to use online methods to target more customers. it decides to conduct a market research by collecting the data of a few customers with their consent. they want to track data of the sites that their customers frequently visit. which software can the company? a. spyware b. bots c. adware d. trojan horse e. rootkits
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13. Suppose an 802.11b station is configured to always reserve the channel with the RTS/CTS sequence...
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