0 votes 0 votes Computer Networks computer-networks + – rajoramanoj asked Oct 2, 2017 rajoramanoj 625 views answer comment Share Follow See all 9 Comments See all 9 9 Comments reply Angkit commented Oct 2, 2017 reply Follow Share Is it option d? 0 votes 0 votes rajoramanoj commented Oct 2, 2017 reply Follow Share EXPLAIN IN DETAIL 0 votes 0 votes Angkit commented Oct 2, 2017 reply Follow Share Frame size / bandwidth >= 2* PT /// Maximum propagation time Now assume bandwidth= constant So, Frame size >= max propagation time 1 votes 1 votes G.K.T commented Oct 2, 2017 reply Follow Share Frame will go collide bad news come to sender by that time he was still sending so he may stop transmitting otherwise by the time bad news will come packet already transmitted now nothing could be done so it should be d 1 votes 1 votes rajoramanoj commented Oct 2, 2017 reply Follow Share thank u.... 0 votes 0 votes Shubhanshu commented Oct 3, 2017 reply Follow Share @Angkit @G.K.T please explain, with an example. 0 votes 0 votes rajoramanoj commented Oct 3, 2017 reply Follow Share In csma/cd the sender doesn't holds a copy after it has sent a frame so the sender sends a frame now if a collision is detected it resends after a random amount of time. In the worst case the collision report can take 2*prop time to reach the sender. If the sender is still transmitting then only it can resend it else not. That's reason why frame transmission time must be > 2 prop. Time 0 votes 0 votes Shubhanshu commented Oct 3, 2017 reply Follow Share @rajoramanoj please explain by taking an example. 0 votes 0 votes G.K.T commented Oct 3, 2017 reply Follow Share http://www.erg.abdn.ac.uk/users/gorry/course/lan-pages/csma-cd.html This link has explained in well illustrative manner please go through it once. 0 votes 0 votes Please log in or register to add a comment.