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For a 1-Gbps network operating over 5000 km, delay is limiting factor, not bandwidth. Consider the MAN with average source and destination 20 km apart. At what data rate does round-trip delay due to speed of light equal transmission delay for 1-KB packet? Suppose speed of light in fibre to be 2/3 speed of light in vacuum.
How is networking beneficial to a professional in any career field?
Using Ethernet Network Interface Cards or NICs, diagram simplest connection between two computers which will allow for communications and resource sharing.
You have been asked to sketch a LAN with operation over a distance of about 100m.
Describe how client process in given end system can find location of given user to establish connection, for instance, Internet telephone, at given point in time.
Assuming you use a straight-through (not a crossover) cable, what port on hub A will you use to connect it to hub B?
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.
Suppose a security-aware caching resolver receives DNS RRset at time t0 with signatures on it which expire at time t1 (where t0
Hypothetical company (make up one for this problem) for your system (for example: operating system) that you are trying to certify at the TOP SECRET level?
If both C1 and C2 at time t0 have congestion window of 10 segments, determine their congestion window sizes after 2200 msec?
You are the Network Manager for a large bank. You have been asked to investigate having employees connect using wireless and not cables.
The telephone communication systems and long distances agreements are managed by a telecommunications department in the headquarters that reports to the vice president of finance. Outline pros and cons of both alternatives.
Implement client and server programs on bank ATM application. Give error checking if amount is legal and userID/password (created in the 1st time).
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