Question 2: (19 marks) 1) Answer the following questions related to STP (14 marks) G0/1 G0/1 3 S1 S2 G0/1/1 2 G0/2 5 G0/2 G0/1/2010 G0/117 6 G012 S3 9 8 54 Fa0/1 Fa0/2 Figure 2 Si Priority 24577 20481 24577 S2 MAC address 00:04:00:00:11:1A 00:0C:00:00:13:22 00:0B:00:00:22:22 00:0C:00:00:33:2B S3 Default port costs Port Link speed Cost (Revised IEEE specification) 10 Gigabit Ethernet 10 Gb/s 2 Gigabit Ethernet 1 Gb/s 4 Fast Ethernet 100 Mb/s 19 Ethernet 10 Mb/s 100 Table B S4 20481 Table A A) From the information of table A, identify which of the 4 switches will be elected as the Root Bridge by the STP protocol (Spanning Tree Protocol). Explain the reason (4 marks) B) From the answer provided in part A determine for each of the 4 switches (refer to figure 2) the role each port will take. (10 marks) The role a port can take are: Root port Designated port Alternate port Note: take in consideration the interface cost (cf. table B). 2) Calculate the wildcard mask for 255.255.255.192 (5 marks) Note: show the steps you followed to calculate the Wildcard Mask. You will only be awarded 2.5 marks if you just mention the correct Wildcard Mask