Computers and Technology, 10.11.2019 02:31 Jxsolvez
Assume that the 100,000 element integer array that you allocated starts at address 0x5 in memory, the size of an integer is 4 bytes and the d-cache is initially empty. as you read the integers in the array one-by-one, starting at index 0, how many d-cache misses will you see for reading the first 40 integers when the cache block size is (to be answered without running pin): a) 4 bytes: b) 32 bytes: c) 64 bytes:
Answers: 3
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?
Answers: 3
Computers and Technology, 23.06.2019 05:30
Sally is editing her science report about living things. she needs to copy a paragraph from her original report. order the steps sally needs to do to copy the text to her new document.
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Computers and Technology, 23.06.2019 09:10
Effective character encoding requires standardized code. compatible browsers. common languages. identical operating systems.
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Computers and Technology, 24.06.2019 00:30
Afiling system in which an intermediary source of reference, such as a file card, must be consulted to locate specific files is called a(n) system. a. shelf filing b. direct filing c. indirect filing d. shingling
Answers: 1
Assume that the 100,000 element integer array that you allocated starts at address 0x5 in memory, th...
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