Correct Answer: C
Explanation/Reference:
Explanation:
Level B2 is described as "Structured Protection".
B2: Structured Protection The security policy is clearly defined and documented, and the system design and implementation are subjected to more thorough review and testing procedures. This class requires more stringent authentication mechanisms and well-defined interfaces among layers. Subjects and devices require labels, and the system must not allow covert channels. A trusted path for logon and authentication processes must be in place, which means the subject communicates directly with the application or operating system, and no trapdoors exist. There is no way to circumvent or compromise this communication channel. Operator and administration functions are separated within the system to provide more trusted and protected operational functionality. Distinct address spaces must be provided to isolate processes, and a covert channel analysis is conducted. This class adds assurance by adding requirements to the design of the system.
The type of environment that would require B2 systems is one that processes sensitive data that require a higher degree of security. This type of environment would require systems that are relatively resistant to penetration and compromise.
Incorrect Answers:
A: Level A1 is "Verified Design", not "Structured Protection".
B: Level B3 is "Security Domains", not "Structured Protection".
D: Level B1 is "Labeled Security", not "Structured Protection".
References:
Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, pp. 395-397