or what ppinion entative of social ies on less ngs. People ar to depend their dreams. Do you think this is just become true ? (I Have a Dream) b. Who are all those traveling through the night ? At what point does the ? mental action cease to start a new action in the poem (Traveling Through the Dark) 5 4. Change the following remarks using 'Supposed to'. Example : People say it is not good to waik ander a ladder. Walking under a ladder is not supposed to be good. a. I have heard he is an orphan. b. People say that students were aggressive. I have heard that student grants are going up next year. d. Apparently elephants have long memories. e. I am told that garlic stops you catching a cold. C. ing'? ppiness? Contd... Contd...​

For all machines-not just hammers- the user applies force force to the machine to the machine over a certain distance. a. input b. output c. duo d. none of the above

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?

Which of the following commands is more recommended while creating a bot?