Which of the following is an unintended communication path that is NOT protected by the system's normal security mechanisms?

The correct answer is C. A covert channel. A covert channel is an unintended communication path within a system, therefore it is not protected by the system's normal security mechanisms. Covert channels are a secret way to convey information. Covert channels are addressed from TCSEC level B2. The following are incorrect…

Submitted by joshua94· Apr 18, 2026Systems and Application Security

Question

Which of the following is an unintended communication path that is NOT protected by the system's normal security mechanisms?

Options

AA trusted path
BA protection domain
CA covert channel
DA maintenance hook

How the community answered

(28 responses)

B
4% (1)
C
93% (26)
D
4% (1)

Explanation

A covert channel is an unintended communication path within a system, therefore it is not protected by the system's normal security mechanisms. Covert channels are a secret way to convey information. Covert channels are addressed from TCSEC level B2. The following are incorrect answers: A trusted path is the protected channel that allows a user to access the Trusted Computing Base (TCB) without being compromised by other processes or users. A protection domain consists of the execution and memory space assigned to each process. A maintenance hook is a hardware or software mechanism that was installed to permit system maintenance and to bypass the system's security protections.

Topics

#Covert channels#Information leakage#System security#Vulnerabilities

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