Transport mode and tunnel mode are the two modes of ________.

In ________, the letters are moved around within a message, based on their initial positions in the message.

________ is the use of mathematical operations to protect messages traveling between parties or stored on a computer.

In the ________, a specific, full act should require two or more people to complete.

________ is being able to manage security technologies from a single security management console or at least from a relatively few consoles.

When an attacker has to break through multiple countermeasures to succeed, it's known as ________.

The systems development life cycle is most connected to the ________ of the plan-protect-respond cycle of security management.

Implementing no countermeasures to security challenges and absorbing any damages that may occur is known as ________.