Answers to Questions 91-95
91. To ensure that your countermeasures are easily verified for compliant operation, you should avoid using countermeasures that are:
C. Not ISC2 certified
D. Not listed in the Orange Book
Explanation: Countermeasures should be designed and thoroughly tested. If the design is totally proprietary, then it may be harder to verify compliant operation of the product. In addition, if the design in totally secret, then it may also be harder to change aspects of the countermeasure when some improved product is developed.
& Section 220.127.116.11: Due Care (Security Policy)
& Section 5.9.1: (Documentation) Standards and Guidelines
& Section 5.9.2: System Architecture (Documentation)
92. Which of the following is a type of covert channels that involves the direct or indirect writing of a storage location by one process and the direct or indirect reading of the storage location by another process?
A. Covert storage channel
B. Covert timing channel
C. Covert read/write channel
D. No Answer is Correct
Explanation: A covert channel that involves the direct or indirect writing of a storage location by one process and the direct or indirect reading of the storage location by another process. Covert channels typically involve a finite resource (e.g., sectors on a disk) that is shared by two subjects at different security levels.
& Section 5.6: Computer Forensics
93. Security Perimeter creates a ____________ where security controls are in effect to protect information assets.
A. Protection line
Explanation: Security Perimeter: boundary where security controls are in effect to protects assets.
A DMZ, or de-militarized zone, may be used in the implementation of a security perimeter, but it does not, in itself, protect the organization's information assets.
& Section 5.1.1: Access Control
94. When would an emergency system restart occur?
A. Before a system fails in an uncontrolled manner
B. After a system fails in a controlled manner
C. When a system fails in background
D. After a system fails in an uncontrolled manner
Explanation: Emergency system restart is done after a system fails in an uncontrolled manner in response to a media failure.
& Section 5.3.2: High Availability / Fault Tolerance
95. Wireless keypad is prone to:
A. Shoulder surfing
C. Reverse engineering
Explanation: Wireless keypad - the users identify themselves by depressing a series of keys on the keypad. The coded representation of the keys is then transmitted to a remote control device. (This type of device is prone to shoulder surfing, allowing someone else to see the code that is entered by "looking over the shoulder" of the person entering it.)
They may also be prone to piggybacking, in which one user follows an authorized user into a secure area, but this depends on the design of the area around the keypad. They are typically not subject to reverse engineering or decryption.
& Section 5.1.1: Access Control
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