+1-415-315-9853

info@mywordsolution.com

## Computer Science

 Algorithms Design Computer Network & Security Automata & Computation Operating System Computer Architecture Information Technology Internet Programming Software Engineering Data Communication Computer Graphics Compiler Design LINUX/UNIX Data Structure WINDOWS Application Digital Circuit E-Commerce Microprocessor Artificial Intelligence Data Warehouse Cryptography

problem 1) Consider the two basic approaches identified toward achieving multicast: unicast emulation and network-layer-multicast. Consider a sender and 32 receivers. Assume that sender is connected to the receiver through a binary tree of routers. What is the cost of sending a multicast packet, in the case of unicast emulation and network-layer multicast, for this topology? Suppose that every time a packet (or a copy of the packet) traverses a link, it incurs a cost C. What topology for interconnecting the senders, receivers, and routers will bring the cost of unicast emulation and network-layer multicast as far apart as possible? You can choose as many routers as you like.

problem 2) As a possible congestion control mechanism in a subnet using virtual circuits internally, a router could refrain from acknowledging a packet until

(i) it knows its last transmission along virtual circuit was received successfully, and

(ii) it has a free buffer.

For simplicity, suppose that routers use a stop-and-wait protocol and that each virtual circuit has one buffer dedicated to it for each direction of traffic. If it takes T seconds to transmit a packet (data or acks) and there are n routers on the path, what is the rate at which packets are delivered to the destination host? Suppose that transmission errors are rare, and the host router connection is infinitely fast.

problem 3) Why does UDP exist? Would it not have been sufficient to let applications send raw IP packets?

problem 4) Consider idealized model for the steady-state dynamics of TCP: the average throughput of connection in the period where the congestion window varies from (W*MSS)/2 to W*MSS is (0.75 * W * MSS)/RTT. In this circumstances, suppose that only one packet is lost at the very end of each period. Demonstrate that the loss rate is equal to L = 1/[ 3/8 * W*W + 3W/4]

Computer Network & Security, Computer Science

• Category:- Computer Network & Security
• Reference No.:- M96675

Have any Question?

## Related Questions in Computer Network & Security

Discussion Questions - "Optimizing Your Network Design" Please respond to the following: Select and describe one (1) of the queuing methods described in the readings. Present a real-world example of the method you select ...

### Discussionip basic concepts please respond to the

Discussion "IP Basic Concepts" Please respond to the following: - Suppose that you work for a company that has been using IPv4 in each of its networks. After hearing a discussion about the differences between IPv4 and IP ...

### The us government has put in place ipv6-compliance mandates

The U.S. government has put in place IPv6-compliance mandates to help with the IPv4-to-IPv6 transition. Such mandates require government agencies to have their websites, email and other services available over IPv6. Let' ...

### Network management paper in this paper you will research

Network Management Paper: In this paper, you will research and report on network management tools associated with (1) policy compliance, (2) bandwidth management, and (3) asset management. Compare and contrast, at least, ...

### Assignmentyou have been hired as the chief security officer

Assignment You have been hired as the Chief Security Officer for a local University. For this role you will be responsible for establishing and maintaining an enterprise wide information security program to ensure that a ...

### Scenario additional detailshealth care hq has a

Scenario: Additional Details Health Care HQ has a client-server network architecture. The chief information officer (CIO) wants to understand the difference between a client-server and a peer-to-peer network. She also wa ...

### Threat management and disaster recovery final paper this is

Threat Management and Disaster Recovery Final Paper This is a two part assignment that will be submitted as one final paper Part 1 I would like you to complete a limited Risk Assessment for a fictional enterprise. This a ...

### Ppp data path completion using dummy network interface term

PPP Data Path Completion using Dummy Network Interface Term Project Goal of Term project 3 1. Completes the user level PPP program - Making a connection on both sides of the program YOU made 2. Try to make the full data ...

### Perimeter securitythe project deliverables are as

Perimeter Security The project deliverables are as follows: • Update the Information Network Security Architecture Design document title page with a new date and project name. • Update your previously completed sections ...

### System reference guide - diagrammingyou have been called

System Reference Guide - Diagramming You have been called upon to put together some reference materials for other groups to follow, since up until now they have not created any formal architectural documents. As a contin ...

• 13,132 Experts

## Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

### Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

### Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

### Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

### Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

### Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen