Please, see instructions of each questions as student number is represented as $12345789$ in $1$st question and in the form of A and B in $2$nd and $3$rd question. Submit a hard copy on due date and also upload a copy on blackboard.

Assignment

$4.$ Find the shortest distance from S to E on the network below. $[40]$

The cost between node S and node A is $-1$st number of your student number.

The cost between node A and node B is $-2$nd number of your student number.

The cost between node A and node C is $-3$rd number of your student number.

The cost between node B and node D is $-4$th number of your student number.

The cost between node S and node B is $-5$th number of your student number.

The cost between node C and node D is $-6$th number of your student number.

The cost between node C and node E is $-7$th number of your student number.

The cost between node D and node E is $-8$th number of your student number.

The cost between node A and node D is $-9$th number of your student number.

If there is a $0$ in your student number change it to $1$ i$.$e if your student number is $215412807$ use it as $215412817.$ If there are repeating numbers like $218264666$ change it to $218264657$ or $218264678$ i$.$e add or subtract $1.$ Don$$t use a number more than twice. If you still have number repeated more than twice add$/$subtract $2$ or $3$ to the number to make it different.

Marks Allocation

a$.2$ Mark for each route and corresponding cost.

b$.1$ mark each Removal$/$addition of route node$/$cost $($shortest path$).$

c$.$ Final route$/$cost calculation$-5$ Marks $($these marks will be awarded, if everything above it is making sense, not for writing it$).$

$5.$ A class$-$C IP address is $196\mathrm{.}1\mathrm{.}1\mathrm{.}0$ is given, subnet it so that you have at least $2$ subnets of AB number of hosts, where A and B are maximum numbers in your student number in increasing order i$.$e if your student number is $21245689,$ then A$=8$ and B$=9.[20]$

Marks Allocation

Show it on NS$3,$ with the help of connected routers$($two$)-4$marks.

Subnet Calculation and explanation:$6$ marks $(3$for each$).$

Broadcast, Network id and subnet mask: $2$ marks each.

Why this subnet mask is used? $-2$ marks

$6.$ A class B network address of $129\mathrm{.}1\mathrm{.}0\mathrm{.}0$ is given and you need to create $4$ subnets with minimum hosts as $9$AB$,8$BC$,3$DE and $2$AD$.$

Where A$,$B$,$C$,$ D and E are taken from your student number as explained in table below. The student number taken here is $214001282.0$ and repeating number are valid for this question. $[40]$

A B C D E F G H I

$214001282$

Marks Allocation

Show it on NS$3,$ with the help of connected routers$($four$)-8$marks.

Subnet Calculation and explanation:$12$ marks $(3$for each$).$

Broadcast, Network id and subnet mask: $2$ marks each X $4$ subnets$=12$

Why this subnet mask is used? $-8$ marks