8. With the aid of a diagram describe the SIX (6) steps of centralized authentication process using Radius server. (8 marks) 9. The network engineer at Global College of Engineering and Technology has successfully created a VLANS 10 and 20. Members of VLANs are two switches which uplinked to each other using Cascobeact 0/5 Interfacelo each individual switch. Below are the commands used to configure switches and add the parts on three different offices named 1 and 2. The network engineer try to test connectivity between two Switches for added interfaces, but he got no reply. Rewrite below commands based on information given above to ensure switches are correctly configured. (6 marks) Office 1 Switch si(config)#interface fastEthernet 8/1 $1(config-1) switchport access too 10 $1(config-if)#interface fostethuet 0/2 $1(config-if)#switchport access to 20 Office 2 Switch S2(config)#interface fastEthernet 8/1 S2(config-if)#switchport access to 10 S2(config-if)#interface fontsthecost. 0/2 S2(config-if)#switchport access when 20 10. Based on SEED lab Race Condition Vulnerability Altack, explain how below php cade could be used to execute this type of attack (4 marks) function withdraw ($amount) { sbalance = balas; IF ($amount