Computers and Technology, 14.04.2020 17:35, bbix420
Which of the following is false? a. The collections returned by the convenience factory methods are not allowed to contain null values-these methods throw a NullPointerException if any argument is null. b. Java SE 9 adds new static convenience factory methods to interfaces List, Set and Map that enable you to create small mutable collections. c. The iteration order is unspecified for Sets returned by the convenience factory methods. d. All of these statements are true.
Answers: 1
Computers and Technology, 22.06.2019 16:50, Tyrant4life
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 06:40, sardarp1irc5
What are the three uses of a screw?
Answers: 2
Computers and Technology, 24.06.2019 13:30, elviaortiz402373
Which of the following is not a “fatal four” event?
Answers: 2
Computers and Technology, 25.06.2019 22:30, sarabell5326
If you were working on a mainframe, which of the following operating systems would you most likely be using?
Answers: 1
Which of the following is false? a. The collections returned by the convenience factory methods are...
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