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Unformatted text preview: find the shortest path between each node of an area. P9.15 What is the operational difference between standard ACKs used in conventional TCP and SACKs used in wireless TCP? What improvement in performance does it provide for wireless networks? The ACKs are sent to fix the host after its timestamp value is changed. Helps hide the wireless link errors from the fixed sender. The SACKs are send back by the TCP to inform the sender of the data has been received. After this, only missing data segments can be retransmitted by the sender. These operations improve time and clarification of actions taken in the wireless networks. P9.19 How many iterations are needed to calculate the shortest path to all nodes from node 3? Determine the shortest distance to each node and the path used for each one of them. 8 iterations are needed. Node 1: 2 Node 2: 5 Node 3: 0 Node 4: 3 Node 5: 3 Node 6: 3, 6(9) Node 7: 3,7 (10)...
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- Fall '11