show all work please 2. Consider the use of 1000 bit frames on a 1 Mbps...
Question#1 1. What is the difference between a BSS and an ESS? 2. Discuss the three types of mobility in a wireless LAN. Question#2 A network using CSMA/CD has a bandwidth of 10 Mbps. If the maximum propagation time (Including the delays in the devices and ignoring the time needed to send a jamming signal, as we see later) is 25.611US, what is the minimum size of the frame? Question#3 Assume that, in a Stop-and-Wait ARQ system, the bandwidth of...
Please, answer all the parts of the question. The subject is Networking. Consider a 1-Mbps satellite channel. Frame length is 1000 bits and the probability of an unsuccessfiul frame transmission is P. Assume that the errors on different frames are independent. Neglect acknowledgment transmission time and receiver processing time and assume a sliding window protocol, using the selective-repeat ARQ method of error recovery. Assume t-50x10° seconds (a) What is the average number of transmission per frame N Assume P 0.01...
The next three questions are related to the local area network shown below. In this network computers attached to links 1 & 2 send data to the server attached to link 3. The three devices are connected through a router. Link 1 Link 2 Link 3 Following parameters of the network have been provided. Propagation delay in link 1-138 micro seconds Propagation delay in link 2-309 micro seconds Propagation delay in link 3-216 micro seconds Frame size 1432 bytes ACK...
03) Consider sending a file size of O bits over a path of 2 links. Suppose the first link can transmit at R1 bit/sec (bps) and the second link can transmit R2 bits/sec (bps) (R1+ R2), both links have a propagation delay of tp, network lightly loaded (no queuing delays), and each link's maximum frame size, S bits, is same (S < O and number of segments is integer and headers are negligible.). (a) How long does it take to...
Please answer this 2 part question! Please show all work (15 points) The bit stream 1110 0111 1010 is transmitted using the standard CRC algorithm described in the book. The generator polynomial is r + x + x + 1. Show the actual bit string transmitted. Suppose that the THIRTEENTH (13th) bit from the left in the transmitted message is inverted during transmission. Show that this error is detected on the receiver's end. Show every step in your calculations for...
help with computer network questions 1. What is the difference between circuit switching and packet switching? 2. What are the different layers in today’s Internet? Why do we create layers? 3. Suppose there is a 10 Mbps microwave link between a geostationary satellite and its base station on Earth. Every minute the satellite takes a digital photo and sends it to the base station. Assume a propagation speed of 2.4 * 10^8 meters/sec. a. What is the propagation delay of...
check my answers for Networking I came up with these answers, can check my answers Question 1: General What data rate is needed to transmit an uncompressed 4" x 6" photograph every second with a resolution of 1200 dots per inch and 24 bits per dot (pixel)? 691,200 kb/s 28.8 kb/s 8.29 Mb/s 829 Mb/s Question 2: Layering "Layering" is commonly used in computer networks because (check all that apply): -It forces all network software to be written in ‘C’....