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There is an alphabet soup of protocols in TCP/IP - HTTP,FTP,SMTP,POP3,TCP,UDP,IP,ARP,ICMP, and others. What are the characteristics of these protocols? What are they used for? Has there been an evolution in any of these protocols? Are there any weaknesses or disadvantages?
you are asked to investigate and write a report on using Internet phone and the company's existing LAN to replace the company's PBX.
Define the type of packet filters that you might build to capture traffic destined to you six critical Web servers?
Arrival at time t = 1, length 3; arrival at t = 2, length 1. Buffer 3: arrival at time t = 3, length 5. You need to find out the finish tag, order of transmission and actual packet completion times for each packet arrival.
Is Nmap able to recognize operating system running on each system? Is there any Nmap feature which can be utilized to guess OS of host?
The issues is pharmaceutical(drugs), explain how you would deal with one of the situations listed below which has brought you project to an abrupt stand still, the employer is supposing No responsibility, and wishes you to work it out.
Using the frequency definition of bandwidth, what should the bandwidth of 10 Mbps Ethernet link be if the signal-to-noise ratio is 20 dB?
Let N users participating in audio/video conference using IP multicasting. Each user is equipped with microphone, a camera, and speakers. How many distinct canonical names are required?
For a language L over alphabet Sigma, let sup(L) denote language of all strings in Sigma* that contain a string of L as s substring.
List the primary differences between the TCP and UDP. Would you recommend UDP or TCP for the voice over IP phone call? Justify your choice.
Research three recent information security breaches. Do main targets seem to be larger or smaller companies? Is there a particular industry which seems predominately targeted?
Explain/propose a new/possible idea on how these networks can be kept safe from hacking.
You are allocated to work on project to create controller for new satellite. To save money, manager evaluates you could reuse about 90% of the software.
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