Which of the following transmission directions listed is not a legitimate channel?

Which of the following statements could be valid with respect to the ICMP (Internet Control Message Protocol)? • • Today Date :- Friday 16th of June 2023 01:47:43 AM computer - Online Exam Test Papers | computer - MCQs[multiple choice questions and answers ] | computer - Mock Test Papers | computer - Practice Papers | computer - Sample Test Papers | Question: Which of the following statements could be valid with respect to the ICMP (Internet Control Message Protocol)? 1.It reports all errors which occur during transmission. 2.A redirect message is used when a router notices that a packet seems to have been routed wrongly. 3.It informs routers when an incorrect path has been taken. 4.The “destination unreachable” type message is used when a router cannot locate the destination. Show Answer Answer:2 Posted Date:-2021-12-27 05:12:40 More MCQS Questions and answers

Consider a simple communication system where multiple nodes are connected by a shared broadcast medium (like Ethernet or wireless). The nodes in the system use the following carrier-sense the medium access protocol. A node that receives a packet to transmit will carrier-sense the medium for 5 units of time. If the node does not detect any other transmission in this duration, it starts transmitting its packet in the next time unit. If the node detects another transmission, it waits until this other transmission finishes, and then begins to carrier-sense for 5 time units again. Once they start to transmit, nodes do not perform any collision detection and continue transmission even if a collision occurs. All transmissions last for 20 units of time. Assume that the transmission signal travels at the speed of 10 meters per unit time in the medium. Assume that the system has two nodes P and Q, located at a distance d meters from each other. P starts transmitting a packet at time t = 0 after successfully completing its carrier-sense phase. Node Q has a packet to transmit at time t = 0 and begins to carrier-sense the medium. The maximum distance d (in meters, rounded to the closest integer) that allows Q to successfully avoid a collision between its proposed transmission and P’s on going transmission is _______ .Note -This was Numerical Type question. Question Description Which of the following transmission directions listed is not a legitimate channel?a)Simplexb)Half Duplexc)Full...