Network layer. Question 1: Consider the value of generator (G) is 10011, and data (D) is 1011101010. Calculate the CRC? (1 point)

Question 2: For the following network address: 199.80.50.0 /27, answer the following. (2 points)

Address class

Default subnet mask

Custom subnet mask

Total number of subnets

Total number of ip addresses in each subnet

Number of usable addresses in each subnet

Question 3: Consider the following network.

a)With the indicated link costs, use Dijkstra’s shortest-path algorithm to compute the shortest path from x to all network nodes. ( 1 point)

b)After that develop the forwarding table for node x (1 point)

Step

N’

D(t), p(t)

D(u), p(u)

D(v), p(v)

D(w), p(w)

D(y), p(y)

D(z), p(z)

0

x

1

2

3

4

5

6

Forwarding table

destination

Link/Interface

Network layer

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