The concept of rendering data passing between two points over an IP based network impervious
to all but the most sophisticated advanced persistent threats is BEST categorized as which of the
following?

A.
Stream ciphers

B.
Transport encryption

C.
Key escrow

D.
Block ciphers

Explanation:
Transport encryption is the process of encrypting data ready to be transmitted over an insecure
network. A common example of this would be online banking or online purchases where sensitive
information such as account numbers or credit card numbers is transmitted.
Transport Layer Security (TLS) is a protocol that ensures privacy between communicating
applications and their users on the Internet. When a server and client communicate, TLS ensures
that no third party may eavesdrop or tamper with any message. TLS is the successor to the
Secure Sockets Layer (SSL).