Which of the following is a disadvantage of putting the VPN on a firewall? O centralized control of network access security O more configuration mistakes O VPN and firewall use the same configuration tools O Internet and VPN traffic compete for resources D Question 6 2 pts Which of the following is true about SSL? O it uses shared-key encryption only it uses sockets to communicate between client and server it opcrates at the Data Link layer it uses IPsec to provide authentication 0 ch