Computers and Technology, 28.02.2020 19:36 jtingley0502
What are the different ways to represent compounds? Check all that apply. a structural formula a ball model a space-filling model the Kolbe formula a molecular formula an empirical formula a ball and stick model a cylindric model
Answers: 3
Computers and Technology, 21.06.2019 15:10
Match the terms in the hlookup syntax with their explanation. a. lookup value b. data table c. row index d. mode 1. name of the table that contains the value 2. specifies if an exact match must be found 3. value to be searched 4. name of the row that contains the value
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Computers and Technology, 22.06.2019 11:30
Communication is the exchange of information. true false
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Computers and Technology, 22.06.2019 16:50
Consider a slotted aloha system, where the time slot equals the fixed duration of each packet. assume that there are 4 stations a,b,c,d sharing the medium. (a) stations a,b,c,d receive one packet each from higher layers at times 1.3, 1.5, 2.6,5.7 respectively. show which transmissions take place when, according to the slottedaloha protocol; describe all transmissions until all four packets have been successful.when needed, each station has access to the following sequence of random number, provided by a random number generator and drawn uniformly between 0 and 1: (1) station a draws numbers: 0.31, 0.27, 0.78, 0.9, 0.9, 0.11, 0. (2) station b draws numbers: 0.45, 0.28, 0.11, 0.83, 0.37, 0.22, 0. (3)station c draws numbers: 0.1, 0.2, 0.3, 0.4, 0. (4) station d draws numbers: 0.36, 0.77, 0.9, 0.1, 0.1, 0.1, 0.1, 0. (b) in slotted aloha, a station transmits in each time slot with a given probability. what probabilities would you assign to each of the four stations so as to: (i) maximize the efficiency of the protocol? (ii) maximize fairness among the four stations? (c) will the efficiency increase or decrease if we modify slotted aloha as follows: (i) get rid of slots and allow stations to transmit immediately? (ii) implement carrier sensing? (iii) implement collision detection? (iv) implement collision avoidance?
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Computers and Technology, 22.06.2019 21:00
Describir textbook icon_person mira los dibujos y describe lo que está pasando. usa los verbos de la lista.
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What are the different ways to represent compounds? Check all that apply. a structural formula a bal...
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