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XYZ Corp is considering a new network. Engineers in design shop should have connections to accountants and salespeople in front office but all routes between two areas should traverse shop floor, where welders and metal-stamping equipment prepare potent amouts of EMI and RFI. Given that both engineering and front office areas use 10BaseT (twisted-pair Ethernet), how might you interconnect those two areas? Explain what meduim guarantees immunity from interference?
Many desktop computers and laptop computers now include automatic built-in network connectivity. Find and name specific desktop and laptop models which have internal networking capability.
Input stream to 4B/5B block encoder is 0100 0000 0000 0000 0000 OOOI. Answer the following questions: Determine length of longest consecutive sequence of Os in input?
A quality control manager has used algorithm C4.5 to come up with rules that classify items based on several input factors. The output has two classes -- Accept and Reject. An item classified as Reject is actually good?
In another year, after all assignments are completed, you consider to convert back to a volunteer basis with AllTechComm, and to discover more profitable employment, preferably with a major company.
Explain networking concepts by using OSI Model as framework. Explain protocols at different layers of the OSI model and describe their functionality.
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.
Explain whether this is still true today, and write down factors are moving wireless NICs into more dominant role, if any.
A draws K=0 and B draws K=2n-1 in exponential backoff protocol. Ignore jam signal and interframe space and suppose that signal propagation speed in medium is 2*108 m/sec. When does station A detects first collision?
Consider error-free 256 kbps satellite channel used to send 1024-byte data frames. What is smallest window size that is large enough to optimize the throughput?
In terms of spectrum, does AT&T, Verizon, Sprint, etc...have access to amount of spectrum required to deliver VoIP services as well as Internet radio and TV?
Can you configure the browser to open multiple simultaneous connections to the Web site? Write down the advantages and disadvantages of having large number of simultaneous TCP connections?
Describe what is the biggest problem in routing security also discuss political feasibility and what factors go into determining whether something is politically feasible in an organization
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