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Q1. Distinguish between packet switching and circuit switching: Give three advantages and three disadvantages of each one.
Q2. Discuss four advantages of layering as seen in the TCP/IP architecture.
Q3. Large files sent over the network must be broken up into smaller packets. How does the IP layer keep the packets from getting misplaced or collected out of order?
You are to network a ten story building capable of supporting 100 computers on each floor. What network hardware will be needed to accomplish the networking project?
Discuss some of the problems NATs create for IPsec security. (See [Phifer 2000]). Can we solve these problems by using IPv6? Why deployment of IPv6 has been slow to date. What is needed to accelerate its deployment?
List some of the basic requirements for the data communications and networking required to support the business information needs? Discuss in scholarly detail. Your answer should be of 300 words.
Suppose that switches user store-and forward packet switching, determine the total end-to-end delay to send packet of length L?
Deduce the expression for link utilization U of a data link which uses sliding-window flow control and returns ACK for every OTHER frame received.
Given the need for secure, online business communications, analyze network security threats and vulnerabilities and design network security solutions
Consider compressed video transmission in an ATM network. Suppose standard ATM cells must be transmitted through five switches. The data rate is 43Mbps. What is the transmission time for one cell through one switch?
Assuming no other route update message has been received, show the updated routing table after router X has received the RIP message shown below from router C after 200s.
Some network designers used alternative bus collision avoidance protocol known as the token bus protocol.
Modify the hosts file to map www.google.com to yahoo's IP address and try to do a google search. Remove the modification to the host file and repeat.
when writing a linear cipher using n = 27, if a = ?, b = ? and c = 7, if ac = 1(mod27) how is this applied to changing the coding?
Create a report exploring the stages involved in a specific attack (of your choice) against a computing system.
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