Suppose that N Ethernet stations, all trying to send at the same time, require 3 slot times to sort out who transmits next. Assuming the average packet size is 6 slot times, what would be the throughput of the Ethernet? (in percentage)
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- A packet switch receives a packet and determines the outbound link to which the packet should be forwarded. When the packet arrives, one other packet is halfway done being transmitted on this outbound link and four other packets are waiting to be transmitted. Packets are transmitted in order of arrival. Suppose all packets are 1,200 bytes and the link rate is 2 Mbps. What is the queuing delay for the packet? More generally, what is the queuing delay when all packets have length L, the transmission rate is R, x bits of the currently-being-transmitted packet have been transmitted, and n packets are already in the queue?Suppose a system has 50 MB data to send on a network and transmit the data in burst at 8 Mbps, the maximum transmission rate across routers in the network is 6 Mbps, if system uses leaky bucket algorithm, the capacity (in MB) that bucket must hold so that no data is discarded is?.Computing Packet Transmission Delay. Suppose a packet is L = 1200 KB long (one byte = 8 bits), and link transmits at R = 100 Mbps. What is the transmission delay for this packet? L: packet length (in bits) R: link transmission rates (Mbps) Queue of packets waiting for output link .000096 secs .0012 secs 8,333 secs .096 secs .000015 secs Sorry, your answer isn't correct.
- In the figure below a router is transferring packets, each of length L= 5 000 bits over a link with a transmission Rate R= 1 Mbps to another router at the other end of the link. The speed prorogation of the light signal on the link is 3x108 m/s. The length of the link is 1 Km. L: packet length (in bits) R: link transmission rates (Mbps) Queue of packets waiting for output link 1-Calculate the total transmission delay. 2- How many packets can be transmitted in one second.Computing Packet Transmission Delay. Suppose a packet is L = 3000 bytes long (one byte = 8 bits), and link transmits at R = 2 Mbps. What is the transmission delay for this packet? L: packet length (in bits) R: link transmission rates (Mbps) Queue of packets waiting for output link .000012 secs .0000015 secs 666,666 secs .0015 secs .012 secs Sorry, your answer isn't correct.Let the two host X and Y connected via a packet switch with 107 bits per second links. Switch is placed at 50 km from X. X and Y are located at 100 Kilometer apart also the propagation speed along the link is 2 × 108 m/s. The switch begins forwarding a packet after 0.1 milliseconds it receives the packet. If 1000 bytes of File are needed to be transmitted and each packet size is 500 bytes, the time elapsed between the transmission of the first bit of data and the reception of the last bit of the data in millisecond is
- Consider a router that transmits bits onto a transmission medium at the rate of 2 Mbps. Let the link be 3 km in length, and bits propagate through the transmission medium at the speed of (approximately) 3x10^8 meters/sec. What is the transmission delay in seconds to transmit a packet of size 2,0o0 bits onto the link? a. 1x10^-5 seconds O b. .001 seconds с. 1 second d. -4 secondsA factor in the delay of a store-and-forward packet-switching system is how long it takes to store and forward a packet through a switch. If switching time is 10 usec, is this likely to be a major factor in the response of a client-server system where the client is in New York and the server is in California? Assume the propagation speed in copper and fiber to be 2/3 the speed of light in vacuum.Segments are transmitted using GO-BACK-N ARQ over a link with RTT= 6 milliseconds with 17 Mbps transmission rate. The packet size is 3721 bytes and the window size is (static) 449. Assume there is no transmission errors and we always have data to send. Then, the link utilization is 66 x %. Note: provide a number greater without any signs.
- Consider a short, 10-meter link, over which a sender can transmit at a rate of 150 bits/sec in both directions. Suppose that packets containing data are 100.000 bits long, and packets containing only control (e.g.. ACK or handshaking) are 200 bits long. Assume that N parallel connections each get 1/N of the link bandwidth. Now consider the HTTP protocol, and suppose that each downloaded object is 100 Kbits long, and that the initial downloaded object contains 10 referenced objects from the same sender. Would parallel downloads via parallel instances of non-persistent HTTP make sense in this case? Now consider persistent HTTP. Do you expect significant gains over the non-persistent case? Justify and explain your answer.a. Suppose N packets arrive simultaneously to a link at which no packets are currently being transmitted or queued. Each packet is of length L and the link has transmission rate R. What is the average queuing delay for the N packets? b. Now suppose that N such packets arrive to the link every LN/R seconds. What is the average queuing delay of a packet?Consider a packet that consists of 1000 bytes, including any headers. How long does it take to transmit this packet onto a data link if the transmission speed of the link is 8 Mbps (Megabits per second)? а. .000001 second O b. .125 seconds с. .000125 seconds O d. .001 second