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- Subnetting (Subnetting) Fill in the blanks. (don't use step by step answer just fill up the blanks) Number of needed usable hosts: 8,000 Network Address : 135,70.0.0 Address class : Default subnet mask : Costum subnet mask : Total number of subnets : Total number of host addresses : Number of usable addresses : Number of bits borrowed : What is the 6th subnet range? : What is the subnet number for the 7th subnet? : What is the subnet broadcast address for 3rd subnet? : What are the assignable addresses for the 5th subnet? :Vehicular traffic networks Recall that latency is the time it takes to get from one place to another (measured in seconds, minutes, or hours), and bandwidth is the amount of something that can pass through a point in a given amount of time (measured in cars per minute, bits per second, etc.). Consider this road network with six cities. Single lines represent 1 lane in each direction, and double lines represent 2 lanes in each direction. 6 mi 3 mi 3 mi 9 mi A В 5 mi 5 mi 8 mi E F 1. There are four different routes to get from A to B (without going in circles). What are the four routes? (In graph theory language, you would say there are four distinct paths that go from A to B without cycles.) 2. What is the total length of the shortest route? 3. Assume all the roads have speed limit 30 miles per hour. a. What is the latency of a car traveling from A to B along route ACDB? b. What is the latency of a car traveling from A to B along route AEDB? 4. Assume everyone follows the 2-second rule…Savod 30 Required information NŐTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part Find the shortest route (in distance) between computer centers in each of the pairs of cities in the communications network shown in the following image: Ot:02:06 Boston 860 Chicago 191 San Francisco 1855 722 New York 908 Denver 1736 257 349 1372 Los Angeles 1235 Dallas Dallas and San Francisco Multiple Choice Dallas to Denver to San Francisco Dallas to Chicago to Denver to San Francisco Dallas to Chicago to San Francisco Dallas to Los Angeles to San Francisco
- Select the three true statements from the following list. Select one or more: O In cellular systems, frequency reuse exploits a phenomenon known as 'fading'. In CDMA, several messages can be sent simultaneously in the same cell only if they occupy different time slots. In GSM, under 75% of the bits in each TDMA frame are available for the message data. Live videoconferencing is much less sensitive to jitter than is the transmission of emails. The air interface for analogue mobile phones in the UK was FDMA. O In CDMA every bit in a message is replaced by a binary code word. In order for a mobile device that is moving around to receive an incoming call, its HLR works together with the VLR associated with the cell where the mobile device is currently situated.USING JAVA (Java Socket /TCP Programming) Create a chat/messaging application that has the following functionalities/features: Broadcast message (to all users) Private message to only one message (established usernames are stored in an XML file)Multiple Access Protocols: This is a 6 part question... you dont have to do 19 and 20 they are just there for context, just 21-24
- PROJECT 2 - Data Transfer Efficiency A packet consists of a header and a payload. The header is fixed at 20 bytes. The range of the user data to be transferred over the network is from 64 bytes to 1518 bytes with an increment of 1 byte, i.e., 64, 65, 66, ..., 1518. Plot transfer efficiency vs size of user data (y-axis is efficiency, x-axis is size of user data) on three different plots corresponding to these cases: (a) Maximum packet size = 100 bytes (b) Maximum packet size = 500 bytes (c) Maximum packet size = 2000 bytes Clearly label the axes and the ranges. What can you conclude looking at those three plots? You may use Excel or your favorite programming language to generate the plots. Submit the following on Canvas: The plots AND the answer to the above question in PDF format. • Your code.Contrast and contrast Selective repetition and go-back-N Sliding window protocols What are the goals of these protocols?Non-Repudiation and Anonymity ProtocolsFor the Zhou-Gollman non-repudiation protocol discussed in the lecture on “Non-Repudiation and Anonymity Protocols”, which one of the following statements is false:a) At time point 4, both A and B can produce evidence to prove that they received Kb) At time point 2, both A and B can produce evidence to prove that they received a signed message from the other partyc) At time point 0, S cannot prove anythingd) At time point 3, B cannot produce evidence to prove that A has access to key Ke) At time point 1, A can prove that B is alivef) At time point 4, S can prove that A is aliveg) At time point 3, S can produce evidence that that A has access to key Kh) At time point 0, A is not alivei) At time point 2, A can produce evidence to prove that B is alivej) At time point 4, the protocol terminatesExplain your answer below:
- 56.router may learn about more than one route to destination AS, selects route based on one of these options: روتر م مکن است در مورد بیش از یک مسیر به مقصد AS بیاموزد، و مسیر را بر اساس یکی از موارد زیر انتخاب کند A. local preference value attribute: policy decision B. largest AS-PATH C. closest NEXT-HOL router: hot potato routing D. additional costCOMPUTER NETWORKS: An application message is segmented into 20 packets, each of which is 4000-byte in size. Caculate the end-to-end delay for the message when the bit rate for any node is 1 Mbps, the optical path total distance is 2000-km, and the queuing and processing delays are 1-ms and 1-ms, respectively. There are 4 intermediate routers in the path, each of which uses the store-and-forward approach. Answer: 786 Please show how they got that answer with steps8. TKIP is an access control protocol. i) True ii) False