Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Computer Network & Security Expert

Solve the following problems.

problem 1) Compute the total time required to transfer 1500 KByte file in the following cases, assuming a RTT of 10ms, a packet size of 1500 bytes, and the initial 3 RTT of handshaking before the actual data is sent.

(a) The bandwidth is 10 Mbps and data packets can be sent continuously.

(b) The bandwidth is 10 Mbps, but after we finish sending each data packet we must wait one RTT before sending the next

(c) The bandwidth is infinite, i.e., the transmit time is zero, but only up to 25 packets can be sent per RTT

problem 2) This problem demonstrate possible danger of incorporating randomization in design. Let A and B be two stations attempting to transmit on the ethernet. Each has the steady queue of frames ready to send; A’s frames will be numbered A1, A2 and so on, and B’s similarly. Let T = 51.2μs is the exponential backoff base unit. Assume A and B simultaneously attempt to send frame 1, collide, and happen to choose backoff times of 0 x T and 1 x T, respectively. Therefore, A transmits A1 while B waits. At the end of this transmission, B will attempt to retransmit B1 while A will attempt to transmit A2. These first attempts will collide, but now A backs off for either 0 x T or 1 x T, while B backs off for time equal to one of 0 x T, ..., 3 X T.

(a) Determine the probability that A wins this second backoff race immediately after its first collision.

(b) Suppose A wins the second backoff race. A transmits A2 and, when it is finished, A and B collide again as A tries to transmit A3 while B tries once more to transmit B1. Determine the probability that A wins this third backoff race immediately after the first collision.

(c) Provide a reasonable lower bound for the probability that A wins all the remaining backoff races.

(d) What then happens to frame B1? This situation is called as the ethernet capture effect.

Computer Network & Security, Computer Science

  • Category:- Computer Network & Security
  • Reference No.:- M96743

Have any Question? 


Related Questions in Computer Network & Security

Assignment designing compliance within the lan-to-wan

Assignment: Designing Compliance within the LAN-to-WAN Domain Imagine you are an Information Systems Security Officer for a medium-sized financial services firm that has operations in four (4) states (Virginia, Florida, ...

Assignment elastic and inelastic trafficwrite a three to

Assignment: Elastic and Inelastic Traffic Write a three to four page paper in which you: 1. Outline a plan for the development of an addressing and naming model in an environment of the following scenario: o Ten departme ...

Firewall fundamentalsactions for firewall

Firewall Fundamentals Actions for 'Firewall Fundamentals Firewalls are considered the key element in securing networks. A firewall is usually a computer that sits on two different networks and passes allowed traffic betw ...

Assessment project network securityyou have been recently

Assessment Project Network Security You have been recently hired as a network security analyst for a small accounting firm. The firm is realizing that they need help to secure their network and customer's data. With your ...

Develop a wlan plan for acme graphic design based on a

Develop a WLAN plan for Acme Graphic Design based on a chosen Blueprint and security to the owner. Write a 700- to 1,750-word document using Microsoft® Word finalizing describing your final network design incorporating y ...

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 ...

Assignment network consultation for designitthis assignment

Assignment: Network Consultation for DesignIT This assignment contains two Sections: Network Consultation Proposal and Network Consultation Presentation. You must submit both sections as separate files in order to comple ...

Dqfacebook email electronic commerce and collaborative

DQ Facebook, email, electronic commerce, and collaborative sites for both work and leisure are a normal part of our everyday computing activities. Personal information entered on these websites become partially owned by ...

Your assignment must be in microsoft word formatnote your

Your assignment must be in Microsoft Word format Note: Your assignment must be in Microsoft Word format, and must be submitted electronically by the due date via the Moodle website Question 1: Firewall Rule Design The fo ...

Short paperwan technologies paper research point-to-point

Short Paper WAN Technologies Paper: Research Point-to-Point (dedicated), Packet Switched, and Circuit Switched WAN protocols/circuits/types. Define each protocol and describe at least two data transmission technologies a ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

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.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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