Only use $1$ cable to the router.

$--$Use $192\mathrm{.}168\mathrm{.}1\mathrm{.}0$ network addresses

VLANS $10,2030$

The following list below are VLAN's

Sales using ports $2-8$

Accounting using ports $9-16$

Marketing using ports $17-24$

$-$Give a name to each vlan and a description to each vlan

Using router $2811,$ fa$0/0$ is the outside port, and fa$0/1$ inside.

Using $2960$ switch $-$ do not use the gigabit ports.

Use fa$0/1$ to connect to inside of router.

forward all traffic on router accordingly

set gateway on switch accordingly

$-$set the appropriate IP address on the main inside interface of router.

You should be able to ping between the router and the pc$\text{'}$s

Ping from each pc to the router and each gateway of of the router.

Ping from one pc to another $($All pc$\text{'}$s can ping each other$)$