a. Distinguish between private networks and virtual private networks.

18a.) The messages of VPNs ________.

a. Share the same transmission lines used by other VPNs

b. Are encrypted

c. Both A and B

d. Neither A nor B

b. Why is  SSL/TLS attractive for VPNs to connect browsers to web servers?

18b1.)  SSL/TLS is used for ________.

a. Web applications

b. Almost all applications

c. Both A and B

d. Neither A nor B

18b2.) Using  SSL/TLS for Web applications is attractive because  SSL/TLS ________.

a. is almost free to use

b. Offers the strongest possible cryptographic protections

c. Both A and B

d. Neither A nor B