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- Efficiency Principle:Ethernet V1 access protocol was designed to run at 10 Mbps over 2.5 Km using 1500 Byte packets. This same protocol needs to be used at 100 Mbps at the same efficiency (utilization). What distance can it cover if the frame size is not changed? (Note: be careful with the units.need proper explaination of All part please length explaination of all parts ' networking q1 (a) Why Frame Relay was originally designed for use across Integrated Services Digital Network (ISDN) interfaces? (b) A connectionless protocol, such as Ethernet, defines the route of a packet through source and destination addresses. However, a connection-oriented protocol, such as ATM, defines the route of a cell through virtual connection identifiers (VPIs and VCIs). Could you explain this statement? (c) Transferring files from one system to another seems simple and straightforward, some problems must be dealt with first. For example, two systems may use different file name conventions. Two systems may have different ways to represent text and data. Two systems may have different directory structures. How to solve these issues in case of transferring of files from one system to another.Computer Science A 10-Mb/s Classic Ethernet transmits data packets obtained from the Network Layer. Assume for simplicity that the obtained data packets are directly placed into the MAC Ethernet frame, i.e. that no extra bytes are added in the LLC sub-layer.
- Select the correct statement(s) regarding connectionless and connection-oriented networks. a. packet networks support either connection-oriented or connectionless circuits b. A connection must be established prior to exchanging data when using a connectionless circuit c. packets must contain source and destination addresses in a connection-oriented circuit d. all statements are correct1. Name the advantages of optical fiber over twisted-pair and coaxial cable. 2. Compare and contrast (major points) between a circuit-switched network and a packet-switched network. 3. The two types of networks, datagram and virtual-circuit, need a routing or switching table to find the output port from which the information belonging to a destination should be sent out, but a circuit-switched network has no need for such a table. Give the reason for this difference. 4. What is the Hamming distance for each of the following codewords: a. d (10000, 00100)b. d (00101, 10000) 5. Find the minimum Hamming distance for the following…Calculate the delay x bandwidth product for the following links. Use one-way delay, measured from first bit sent to first bit received. (a) 100-Mbps Ethernet with a delay of 10 μs. (b) 100-Mbps Ethernet with a single store-and-forward switch like that of Exercise 16(b), packet size of 12,000 bits, and 10 μs per link propagation delay. (c) 1.5-Mbps T1 link, with a transcontinental one-way delay of 50 ms. (d) 1.5-Mbps T1 link between two groundstations communicating via a satellite in geosynchronous orbit, 35,900 km high. The only delay is speed-of-light propagation delay from Earth to the satellite and back.
- True or False: [ ] In the Ring topology, each computer acts as repeater make error detection and boosts the signal before sending it on. [ ] Ethernet is a LAN so it is placed in the second layer of the OSI reference model. [ ] UDP provides connectionless service and delivers packets quickly. In case of packet loss, UDP does not provide retransmission.2. Ethernet frames must be at least 64 bytes long to ensure that the transmitter is still going in the event of a collision at the far end of the cable. Fast Ethernet has the same 64-byte minimum frame size but can get the bits out ten times faster. How is it possi- ble to maintain the same minimum frame size?Part II: In ADSL service, there is a single UTP pair running from the end office switch to the individual household. In cable modem service, the thick coaxial cable in the neighborhood is shared by many subscribers. Yet typically, cable modem service provides faster service to individual customers than ADSL. How can this be?
- Calculate the effective bandwidth for the following cases. For (a) and (b) assume there is a steady supply of data to send; for (c) simply calculate the average over 12 hours. (a) 100-Mbps Ethernet through three store-and-forward switches as in Exercise 16(b). Switches can send on one link while receiving on the other. (b) Same as (a) but with the sender having to wait for a 50-byte acknowledgment packet after sending each 12,000-bit data packet. (c) Overnight (12-hour) shipment of 100 DVDs that hold 4.7 GB each.Suppose value of K is 1 (Ethernet CSMA/CD), compute backoff time when link capacity (data rate) is: 10 kbps 100 kbpsNetworking. How long is the delay to transmit 500kb file from host A to Host B over circuit switch system that uses TDM with 48 time slots and have 24 Mbps. Assume that the system needs 250 msec to establish an end-to-end link between A and B?