CSE3213_2009_Quiz1_solution

CSE3213_2009_Quiz1_solution - CSE 3213: Instructor: Time...

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CSE 3213: Communication Networks, Fall 2009 Instructor: Natalija Vlajic Time Allowed: 15 minutes Quiz 1 Student Name: ______________________________________________________ Student Number: ______________________________________________________ 1. [2 point] (a) In class, we have discussed numerous advantages of ‘layered’ vs. ‘monolithic’ approach to networking. Would it be correct to say that layered approach to networking also results in a higher effective bandwidth, i.e. with layered approach we are able to transmit more useful/user data per each time unit? Provide a YES or NO answer, and a brief explanation! NO. In fact, reduction of effective bandwidth is one of (a few) disadvantages of the layered approach. Namely, the layered approach requires that each of the layers adds its own header to the user’s useful data. Hence, the overall amount of data that needs to be transmitted increases, consequently resulting in lower ‘effective bandwidth’.
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CSE3213_2009_Quiz1_solution - CSE 3213: Instructor: Time...

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