Computers and Technology, 05.09.2019 00:10 zachstonemoreau
What happens to a junction object record when either associated master record is deleted? a junction object has two master-detail relationships. a. the record is deleted and placed in the recycle bin. b. the master record can’t be deleted if it has a child record. c. the look-up field on the junction object record is cleared. d. the record is permanently deleted and can’t be restored.
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Computers and Technology, 22.06.2019 07:30
What type of computer network ensures high security ?
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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, 23.06.2019 02:30
Experimental data that is expressed using numbers is said to be
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Computers and Technology, 23.06.2019 13:00
Which one of the following voltages should never be measured directly with a vom? a. 1200 v b. 500 v c. 800 v d. 100v
Answers: 2
What happens to a junction object record when either associated master record is deleted? a junctio...
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