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1. Discuss the trade-offs between circuit switching, virtual circuit switching, and packet switching.
2. Answer the following about communication protocols: (a) IP (Internet Protocol) is described as a "best-effort delivery service." What exactly does this mean? What is the consequence if the "best effort" fails?
(b) Explain how UDP (User Datagram Protocol) differs from IP as a transport mechanism.
(c) Finally, describe the added capability TCP (Transmission Control Protocol) provides for data transport.
3. Your cousin has asked you to help her to design a small home network for her own use.
a) What are the important questions that you will need to ask as you start to consider your design? List at least three.
b) What are the critical components that you will need to specify in your design? List at least three.
4. Explain the steps the Address Resolution Protocol takes to match an IP with a MAC address.
SNMPv1 is the most commonly used version of SNMP even though it provides little support for security. Why not change to another version of SNMP?
Other building a mainframe computer. What is the best way to connect the workstations to the mainframe computer? Explain your reasoning and all the possible solutions you considered.
Identify the possible causes of the problem. How you would subsequently optimize the network? Create an action plan to isolate the causes for the problems
Suppose there is a Certificate Authority (CA) with well-known public key. Further suppose every user is issued a certificate for his/her public key.
xplain how a worm propagates itself. Summarize the benefits of application-level gateways. Explain why intrusion detection is necessary in terms of the known good state
It determines new tree topology when switch or cable link failures. Reserved route takes over when device or connection fails. To aggregate ....to gather together Which is better, 10x100Mbps or 1Gbps?
Write down the benefits of using extranet instead of dedicated/private phone lines in this situation? How do you expect your customers restaurants to react to change to extranets?
Create codes for the following problem/s. Compile, test run, and edit them if necessary. Include your original .cpp and related file(s) (if any) in a single folder.
With what is the Application layer primarily concerned and what is the broadcast address of the subnet address 178.55.20.88 255.255.0.0?
Provide a brief comparison of VPN Protocols, outlining the advantages and disadvantages of each. Provide a scenario where it might be useful to use VPN for an organization
Explain in 200 to 300 words at least two different ways to secure a WLAN. What are the ramifications if a WLAN is breached
Assume that sender sends silence suppressed RTP stream of G.711 audio to receiver. During talk spurt 20 msecs chunks of quantized audio samples are encapsulated. Determine number of samples are included in each packet?
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