Authorized Information Transfer Channel

B.

An overt channel is a path within a computer system or network that is designed for the authorized transfer of data.The opposite would be a covert channel which is an unauthorized path.

A covert channel is a way for an entity to receive information in an unauthorized manner.

It is an information flow that is not controlled by a security mechanism.

This type of information path was not developed for communication; thus, the system does not properly protect this path, because the developers never envisioned information being passed in this way.

Receiving information in this manner clearly violates the systems security policy.

All of the other choices are bogus detractors.

Reference(s) used for this question: KRUTZ, Ronald L.

& VINES, Russel.

D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 219

and Shon Harris, CISSP All In One (AIO), 6th Edition , page 380 and Harris, Shon (2012-10-25)

CISSP All-in-One Exam Guide, 6th Edition (p.

378)

McGraw-Hill.

Kindle Edition.

The correct answer is D. Closed channel.

A channel within a computer system or network that is designed for the authorized transfer of information is known as a closed channel. A closed channel is a communication path or conduit between two points that is designed and configured to transmit information in a secure, private, and authorized manner. Closed channels are typically used for transmitting sensitive or confidential information that must be protected from unauthorized access or interception.

Closed channels are commonly used in secure communication systems such as military, intelligence, and law enforcement networks, as well as in corporate networks and financial systems. Closed channels are designed to provide high levels of security, confidentiality, integrity, and availability, and typically incorporate advanced encryption, authentication, and access control mechanisms.

In contrast, an overt channel is a communication path or conduit that is intended to transmit information openly and is not designed for secure or confidential communication. An overt channel is typically used for non-sensitive or non-confidential information that can be freely transmitted without the need for security controls.

A covert channel is a hidden communication path or conduit that is designed to bypass security controls and transmit information in a stealthy manner. Covert channels are often used by attackers or malicious insiders to evade detection and exfiltrate sensitive information from a system or network.

An opened channel is not a commonly used term in computer security and does not have a specific definition related to secure communication channels. It is possible that this term refers to a channel that is open to unauthorized access or interception, which would be the opposite of a closed channel.