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Wireless Networks
Consider a warehouse that is 60m by 30m. Wireless networking is required so that up to 20 staff members working in the warehouse can track stock movements and perform stock checks using mobile devices.
(a) Assume that the useful range of WiFi within the warehouse will be 15m radius. Design a simple layout of omni directional antennas to cover the entire warehouse. Show the channel to be assigned to each antenna, taking care to minimise interference between the coverage areas. Briefly explain any key design decisions you have made. [1 diagram, up to 150 words]
(b) Which WiFi flavour (a, b, g, n, ac, ad, or other) would you recommend for this new installation? Discuss the options and justify your choice. [Up to 200 words]
(c) Would you recommend security for this network, and if so, what type of security?
Discuss the options and justify your choice. [Up to 200 words]
State the primary advantage of a deterministic local area network protocol over a nondeterministic local area network protocol.Give a real-life example of this advantage.
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?
For each of the following attacks, say whether the attack can be detected and mitigated (to a significant degree) by a stateless or stateful firewall. Explain briefly.
Determine the maximum value of L such that TCP sequence numbers are not exhausted? Recall that TCP sequence number filed has four bytes.
What if private key is unknown? how would rsa algorithm be implemented then? Assume we have the algorithm which knows public key it is able to decrypt small amount of messages?
Describe the methods to tackle and mitigate RF multipath that impact to WLAN throughput. Explain the purposes of POE in WLAN design.
Social Networking is one of the hottest topics in knowledge management. Is it knowledge management?
Suppose the role of IT consultant to new nonprofit organization, Free Flu, that gives flu shots to elderly. The organization requires domain name.
Peer-to-Peer, Client/Server and Virtualization platforms can be used to setup networks for organizations small in size. Compare the three mentioned platforms and mention their associated merits in relation to administration, security and usability
1.What is a network? What are the six main elements and their functions of a typical network? Explain each one. What devices are used in layers 1-3? What is a message called in layer 2? Layer 3?
Suppose you are working for a small business that has outgrown its existing building. What technology will you recommend to internetwork the two buildings?
Suppose the role of IT consultant to new nonprofit organization, Free Flu, which gives flu shots to elderly. Distinguish between any Web pages or Web servers you would use for this task.
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