solved: Network Design Homework 1. Briefly describe the following terms:…


Network Design Homework 1. Briefly describe the following terms:…Network Design Homework 1. Briefly describe the following terms:(a) Default queue(b) Service Level Agreement (c) Application requirement(d) Tail drop(e) Goodput(f) Protocol overhead 2. Briefly explain the difference between the raw bit rate and the net bit rate of aconnection, and outline a case when the two differ. 3. Given a WAN link of type E1 (2,048 kbps), how many KiB, likewise per second, canyou transmit? Overhead not considered, kb=kilobit, KiB=Kibibyte. Submit the stepsof your calculation.  4.  For the four default traffic classes on a switch, a 100 Mbps interface has been configured with the following Round Robin command: wrr–queue bandwidth 3 4 2 1.How much is the effective net bit rate for:(a) Background and best-effort traffic?(b) Excellent effort and critical traffic?(c) Voice and video?(d) Internet and intranet control traffic?  5. In the risk analysis for Shoprite supermarkets in Windhoek, the cost of a supermarket till breaking down is estimated at 5,000 NS (half the value of the till). The cost of one hour loss of electricity is estimated at 100,000 NS (one hour of lost revenue for the shop). Critically comment this approach.  6. A workstation uses the HTTP protocol to download a large file from a web server. The layer—4 protocol for this file exchange is TCP. No proxy server is used. One router’s queue is full when one of the web server’s packets arrives. Consider the actions that follow, with respect to the HTTP protocol and the TCP protocol.(a) What action will the router take?(b) What action will the workstation take?(c) What action will the web server take? Consider two actions. 7.  The following packets have arrived at a router, in the order given as “Packet #” below. They are all scheduled to exit interface Serial1, where the scheduling discipline is flow—based Fair Queueing. Image transcription textPacket Source Dest. IP Protocol SourceDest. Bytes # IP port port 1 TCP 65001 80 … Show more… Show more(a) Indicate how many queues will be formed for these packets, and which packet is in which queue, in which order.(b) In which order are the packets sent out of interface Serial1?  8.  Consider the following network topology. Each workstation on the left represents 20 user PCs. All switches are Cisco 2950 (24 ports of 100 Mbps plus 2 ports of 1 Gbps). Only the multi-layer switch (MLS) does traffic policing in this network. The web server can be accessed from the outside, while the file server cannot.   (a) Why is the link between switch block and MLS not a Gigabit link? Explain in some detail.(b) One user intends to save a local backup file on the file server. Briefly describe best-case scenario and worst-case scenario of network performance.(c) Identify the bottleneck in this network when saving local backup files on the file server, in the best-case scenario, and in the worst-case scenario of network performance.(d) Calculate the usable net bit rate when saving local backup files on the file server in the best-case scenario, and in the worst-case scenario of network usage.(e) Which interfaces of the MLS require an IP address? List the interfaces, and explain briefly for each of them why an IP address is necessary.(f) The network is supposed to be expanded by 4 access points to provide wireless network access for employees. Briefly describe where these access points would be connected.(g) The network is supposed to be expanded by 4 access points to provide wireless      network access to visitors. Briefly describe where these access points would be connected.  9. Image transcription textMinneapolis Network NetworkCorporate NOC 30 Devices To OtherNetwork Network ASs 30… Show more… Show more1. Add devices for managing each of the remote sites (outside of the Minneapolis area) out-of-bands from the corporate NOC.2. How does the addition of out-of-band management between the corporate NOC and remote sites potentially impact the security of the network?3. Recommend 2 ways that the management data collected via SNMP counters from each of the routers could be verified.   Computer ScienceEngineering & TechnologyNetworking COMPUTING 1234

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