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Message forwarding
A computer in the Computing Department has just been turned on. The user starts up their web browser and requests to see the Macquarie University home page. The home page www.mq.edu.au resides on a server on the administration subnet.!
Describe what happens in getting this request message to the server and how the server gets the response message back to the client.!You should assume (for now, because the MQ network is a bit more complex as will be explained in later lectures) there is one router that connects the Computing network to the Administration network. Each of these networks is a switched LAN.!
You should tell the story of the messages, starting from how the browser formats the request, how it progresses through the stack layers. What happens when we get to the Internet layer (since this machine has not contacted the network before)? What happens in the Data Link layer? What does the switch do? What does the router do? What layers are involved at the switch and the router. How does the server stack deliver the packet to the HTTP server software?!
A compressor installed at a whalf (for loading container ships) is able to provide 6 bar.g pressure into the pressure reciever. The compressor is moved to a site that is 5000 ft above sea level (atmospheric pressure 0.85 bar.a
You are an ISP that has been assigned a class B network with the address 145.34.0.0. You know you will service 200 to 250 small companies.!
Choose all the necessary and suitable MAC address, IP address for interfaces and port addresses implied by the above description. State clearly in your submission the choices you have made for these addresses.
A projectile is fired into a block of wood that is hanging on the end of a light rigid rod. How you would estimate the speed of the projectile. What might account for the errors in your estimation.
A jet on an aircraft carrier is launched by a catapult. What are some of the parameters that would be taken into account to make sure the aircraft achives a specified speed at the end of the ship
Discuss how relative motion is a critical issue in the midair refueling of aircraft. Would control of this process be with the pilot of the tanker or the aircraft being refueled
Choose all the necessary and suitable MAC address, IP address for interfaces and port addresses implied by the above description.
A baseball is hit from home plate and travels over the center field fence. What would the trajectory of the baseball look like if air-resistance was not factored in
Air enters the compressor at 98 kPa and 295 K at a rate of 10 kg/s and exits at 1 MPa and 620 K. Determine the net power delivered to the generator by the turbine.
Steam enters a nozzle at 400oC and 800 kPa with a velocity of 10 m/s, and leaves at 300oC and 200 kPa while losing heat at a rate of 25 kW. For an inlet area 0f 800 cm2, determine the velocity and the volume flow rate of the steam at the nozzle ex..
Fiber-optic line has reached capacity. What alternatives can the telephone company consider to increase capacity?
Role services installed by default and project enables you to install the Web Server role via Server Manager.
Are organizations likely to find better solutions to information overload through changes to their technical systems or their social systems, or both? Why?
Discuss today's Local Area Networks security issues related to peer-to-peer network, client /server network and virtualisation environment.
Given narrow (usable) audio bandwidth of telephone transmission facility, nominal SNR of 56dB (400,000). What can we say about actual maximum channel capacity?
How long does it take to send a file of 640,000 bits from host A to host B over a circuit-switched network? All links are 1.536 Mbps Each link uses FDM.
What is the subnet address used by the company in decimal numbers and write major difference between TDMA and FDMA with less than three sentences
Explain in detail with the help of diagrams the CSMA/CD media access control technique used in Ethernet and write a report on your observations analyzing the data collected in previous step.
Why does HTTP at the application layer uses TCP while DNS uses UDP when it passes its message packet with overhead to the Transport Layer and then hand it off to the Network Layer?
which authentication factor is being utilized by authentication server which respond to login request by creating a random number or code.
Discuss the differences between Wide Area Telecommunications Service and leased lines?
It takes 56 milliseconds for workstation to decode each received frame and display it on screen. Will this workstation display video stream successfully? Why or why not?
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