Consider the following scenario: A server is connected to a router R1 by a 10Mbps link with a 10ms propagation delay. · R1is connected to a router R2 by a 10Mbps link with a 100ms propagation delay. R2 is connected to a host A by a 1000Mbps link with 1ms propagation delay. R2 is also connected to a web cache (proxy server) over a 1000Mbps link with 1ms propagation delay. The size of all packets in the network is 10Kbits. Assume there's no queuing delay at the routers. What is the end-to-end delay from when a packet is transmitted by the server to when it is received by the client? Show your work!

Consider the following scenario: A server is connected to a router R1 by a 10Mbps link with a 10ms propagation delay. · R1is connected to a router R2 by a 10Mbps link with a 100ms propagation delay. R2 is connected to a host A by a 1000Mbps link with 1ms propagation delay. R2 is also connected to a web cache (proxy server) over a 1000Mbps link with 1ms propagation delay. The size of all packets in the network is 10Kbits. Assume there's no queuing delay at the routers. What is the end-to-end delay from when a packet is transmitted by the server to when it is received by the client? Show your work!

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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In a network scenario, access link rate is 2 Mbps, RTT from the company router to server is 2 sec and web object size is 100K bits. If the average request rate from browsers to origin servers is 18 requests per second, what is the access link utilization? What are the problems associated with high link utilization? If a cache server with hit rate of 60% is used, what is the access link utilization?
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We send real-time voice from Host A to Host B over a packet-switched network (VolP). Host A converts analog voice to a disital 64 Kbps bitstream on the fly then groups the bits into 64-byte packets. As soon as Host A gathers a packet, it sends it to Host R (Obviously a data packet must be generated first before any bit inside it can be transmitted). There is one link between Hosts A and B; its transmission rate is 10 Mbps and its propagation delay is 10 msec. As soon as Host B receives an entire packet, it converts the packet's bits to an analog signal How much time (in milliseconds) elapses from the time a bit is created from the original analog signal at Host A) until the bis arrived at Host B and gets decodedas part of the analog signal at Host B)? Hint Calculate the time to generate a packet of 648 time to transmit this packettime to propagate Your aewwer should only contain umbers rounded to the hundredth (For example 123 S) Prvious
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NAT translation table LAN side addr WAN side addr 135.122.200.215 10.0.1.15 10,0.1.13 address 135.122.200.215 S: 10,0,1.27 2 D: 1 D: S: S: D: S: 10,0.1.15 D: 135.122,200,215 10.०.1.22
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