Consider the network fragment shown below. x has only two attached neighbours, w and y$.$ The complete paths from w and y to u are not shown.

image.png

Answer the following questions $($note$,$ each question is independent of other questions$)$:

In the above figure, what is the distance vector of X to destination U$,$

DX$($U$)=$

In the above figure, if the link cost between X and W is now $6,$ calculate:

DX$($U$)=$

In the above figure, if the link cost between Y and W is now $2,$ calculate:

DX$($U$)=$

In the above figure, if the link cost between X and Y is now $9,$ calculate:

DX$($U$)=$

In the above figure, if the link cost between X and Y is now $3,$ calculate:

DX$($U$)=$

note: enter integer numbers only