TCP uses a sophisticated feedback scheme to respond to
TCP uses a sophisticated feedback scheme to respond to congestion in the network, and UDP has no feedback at all -- for congestion or anything else. Imagine that you have a pair of identical applications, on two different machines, and that each application generates data at a rate of 1 Mbps. The ONLY difference is that the transport layer used by each is different -- one uses TCP and the other uses UDP. The machines where the identical applications are running are each connected to their own 10 Mbps ethernet port on a WAN router, which has a 1.544 Mbps WAN link to the Internet (where the other endpoints of the communication are located.).Since 1Mbps + 1Mbps is greater than the capacity of a 1.544 Mbps WAN link, what do you expect to happen at the router and what will be the behavior as seen by each of the two applications? If there is a difference in performance and behavior, what is the underlying reason? What is the approximate data rate for each application when both are sending data? Explain whether both, neither, or only one application will succeed in sending all of its data without errors to its intended recipient?
My modem came unplugged last night now I have no internet
My modem came unplugged last night now I have no internet connectionJA: Have you done a bandwidth test?Customer: Don't know howJA: What happened right before this popped up?Customer: Everything was fine then jus lost connection when it came unpluggedJA: What troubleshooting have you tried?Customer: Resetting both router and modem. All lights are on indicating I have connection but when I go to my I phone or I pad my system doesn't even show upJA: Anything else you want the network expert to know before I connect you?Customer: No thanks
Bachelors in Information Technology
Have no internet connection on my laptop. Called Century
Have no internet connection on my laptop. Called Century Link my provider and they. Say all good on their. End and to contact youJA: Have you done a bandwidth test?Customer: I think they said it exceeded the specsJA: What happened right before this popped up?Customer: I have been trying wire sly and CL suggested. Ethernet which I have tried but nothing is connectingJA: What troubleshooting have you tried?Customer: Unplugging modem/router and waiting 15 seconds and plugging back in-no connectionJA: Anything else you want the network expert to know before I connect you?Customer: No- just need connection
I just bought 3 google wifi mesh devices. (Just came out in
I just bought 3 google wifi mesh devices. (Just came out in December) How do I organize these across my house?My Comcast modem is in my garage. It is connected to a netgear nighthawk. I don't need wifi in the garage in general and certainly not with both those devices.I have Ethernet cables going from the garage to most rooms. I currently have one google wifi device in each of the following: kitchen (primary), master bedroom and living room. The kitchen one is connected to Ethernet and the others currently aren't. (When I tried to connect the master bedroom one to Ethernet, ookla speed test got slower)In my home office, I have an apple wifi device which the network printer is plugged into.What is the best configuration so I get the fastest wifi across the house and can turn off unnecessary wifi?
My internet speed is very, very slow at the moment - for the
My internet speed is very, very slow at the moment - for the past 2 days.JA: Can you describe your network setup (devices and cables used)?Customer: Netgear N300 from ADSL2 to ASUS Notebook F550C series on Windows 10.JA: What happened right before this popped up?Customer: I don't know. Speed was normal until 2 days ago then very slow ever sinceJA: What troubleshooting have you tried?Customer: I have been in touch with Telstra Bigpond support. They have tried resetting the modem. Initially there was improvement (for about 5 mins) then back to very slow.JA: Anything else you want the network expert to know before I connect you?Customer: No, just hope it can be fixed
Verizon jetpack router on Windows 10 laptop, connected but
Verizon jetpack router on Windows 10 laptop, connected but no Internet access. Worked before this evening.JA: Have you done a bandwidth test?Customer: How exactly? The actual mestage on the Windows network is "No internet, secured" while connected.JA: What happened right before this popped up?Customer: Tried to connect to Verizon wi-fi connection. Connected as usual, but status mestage says no internet.JA: What troubleshooting have you tried?Customer: Windows network diagnostics.JA: Anything else you want the network expert to know before I connect you?Customer: No, thanks!
IT Manager, Consultant
I'm a pc/network tech but this specific area is not my
I'm a pc/network tech but this specific area is not my expertise. I need to scan the network for potential viruses or threats.A few days ago several employees are reporting of our internet been really slow, voip phones going down. We had a time warner tech come out and checked the lines and modems. He did say that the line was good. He noticed that our bandwidth was been maxed out on a daily basis and spiking down and up but mostly up.He mentioned that there might be a computer infected with a virus and to have the network or pc's checked. Is there a utility (free) or (trial) we could use to monitor these services? and a utility that will help nailed down which pc is doing this?Thank you,
computer technology consultant
Vocational, Technical or Trade Scho
In the course project, you will create a network design for
In the course project, you will create a network design for a fictitious organization. Each week, you will be completing a part of the assignment based on the content covered in the week. You will do this by adding new content to the assignment document every week to arrive at the final design.This week's assignment will enable you to develop the skills for designing a network. The focus will be on the considerations and tasks required for designing a network.ScenarioDreamz Inc. develops software and learning solutions for clients worldwide. The main office of the organization is located on six floors of a building in Chicago where hundred users occupy each floor. While the first floor houses the corporate office, the other floors house the administrative, finance, human resources (HR), engineering, marketing, information technology (IT), and research departments. All users need e-mail, file and print, and Internet services.To provide these services, the organization has ten servers that are used as LAN, proxy, and database servers. The users in the finance and HR departments require sufficient bandwidth and access applications from an Oracle server. This server is accessible only to users in the finance and HR departments; and these users can also access the server from the Internet. Dreamz Inc. is also connected to the Internet from the same network and has web and e-mail servers hosted for Internet access.With expanding business, Dreamz Inc. has setup three branch offices in St. Louis, Detroit, and New Jersey. These three branch offices need to be connected to the main office and other branch offices. A fourth office at San Francisco comprises a network of five users and requires a single Internet connection.TasksAs the network manager for the organization, you need to design the networks for connecting various branches of the organization.You also need to study the requirements of each branch of the organization. In addition, you need to ensure that the network uptime is 99% with a downtime of not more than five hours.Having read and understood the scenario, complete the following task and post a 1- to 2-page report using Microsoft Word to document your work:Recommend a network model and give reasons for your selection.Support your work with examples.Cite any sources in APA format.
I have an Asus RT-66W dual band 3x3 gigabit router
I have an Asus RT-66W dual band 3x3 gigabit router for my wireless networking at home. I have this in my office in the front corner of the house because my main computers have a hard wire Ethernet connection. However my wifi signal drops substantially in the farther regions of my house. My ISP is xfinity and I'm running their 75Mbps service. I don't have another Ethernet port but do have a cable outlet in my living room and master bedroom. What would be the best way to gain my signal to my living room and master bedroom areas? I have a 1900 sq ft house.
IT Support Specialist