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1.Devise a code set for the digits 0 to 9 that has a Hamming distance of 2.
2. In a sliding window error control system in which each byte is numbered, Station A sends a packet with bytes numbered 801 to 900. If the packet arrives with no errors, how does Station B respond?
3.Given today's networking technology; 3-bit and 7-bit sliding window sizes seem very restrictive. What would be a more reasonable size today? Explain your reasoning.
Give a most implementable WLAN design solution for office with 20 wireless employees, using WLAN capable laptops to access email, Internet, small accounting applications.
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.
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.
Assuming you use a straight-through (not a crossover) cable, what port on hub A will you use to connect it to hub B?
Consider a simplified TCP,S AMID algorithm where the congestion size is measured in number of segments not in bytes in additive increase the congestion window size in the long run will these two connections get the same share of the bandwidth o..
If the poll bit is on in the sixth frame, what will be the N(R) count back from the secondary after the last frame? Assume error-free operation.
A crypto device encrypts each message into 20 bits of ciphertext.What is the entropy of the plaintext message? What is the entropy of the ciphertext message?
After choosing unused address from the range given in d for the IP address for a device on the LAN, what would the IP subnet mask and gateway be set to? Explain why these settings would be used.
Describe the network you would recommend and how it would be con?gured with the goal of building a new network that will support the company's needs for the next 3 years with few additional investments.
Assume you are responsible for selecting and maintaining your current employers connection to the Internet. Take some time to research routing protocols
Explain authentication and authorization. Which depends on the other? How and why are these processes more complex in a modern networked organization.
Wireless DSL is available in her apartment building for $45 per month for 1.5 Mbps down and 256 Kbps up. Explain the differences in these services and make a recommendation.
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