Question No$.4[10$ Points$]$

a$.$ A periodic composite signal with a bandwidth of $2000$ Hz is composed of two sine waves. The first one has a frequency of $100$ Hz with maximum amplitude of $20$ V ; the second one has maximum amplitude of $5$ V $.$ Draw the bandwidth.

b$.$ Dialog control and synchronization are two responsibilities of the session layer in the OSI model. Whicl layer do you think is responsible for these duties in the Internet model? Explain your answer.

c$.$ Assume that a router is configured to allow only one route in the routing table to each destination network. If more than one route to a particular subnet is learned, and if each route has the same metric value, which route is placed in the routing table if the routing protocol uses distance vector logic?

d$.$ Define what split horizon means to the contents of a routing update. Does this apply to both the distance vector algorithm and the link$-$state algorithm?

What are the designated, nondeslgnated, and roor porm

Which are the forwarding and blocking ports?

Good Luck

Computer Networks $/$ Terminal Exam $/$ Fall $2023$

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