Answers to Questions 96-100
96. What is the most common threat to physical security that is also considered highly effective?
C. Dumpster diving
D. All of the above
E. None of the above
Explanation: While a second person following through a door after the first person has uses an access key (tailgating or piggybacking) is a security concern, dumpster diving is the most serious threat because of the amount of information that can be discovered.
& Section 5.1: Physical Security
97. What utilities need to be considered in disaster planning?
Explanation: Of the choices listed only safety is incorrect. While human safety is always the #1 concern, safety is not a utility. Power and communications may be obvious, and some people over look water issues. Typically as in how do you make it go away? A sprinkler system that is running may do more harm then good. Experienced site technicians have a 'key' to stop a defective sprinkler head.
& Section 5.3.1: Utilities (Business Continuity)
98. When a business cannot afford interruptions, availability choices include
A. Mirror sites
B. RAID based hard drives
C. Hot-swappable computer components
D. Clustered computer systems
E. All choices are correct
Explanation: There is no single correct choice for all forms of business. All the choices listed are options to consider. Mirror sites can be used to compensate for the unavailability of the main site. RAID subsystems can be used to guard against drive failures. Hot-swappable components allow for replacements to be made without powering down the system. Clustered systems allow another system to transparently take over for one that has failed.
& Section 5.3.2:.High Availability / Fault Tolerance
99. Security procedures should include:
A. Doing things the most efficient way possible
B. Users should be assigned the least level of privileges they need to do their jobs
C. Business keeping up with capital investments that improve their business
D. All choices are correct
E. No choice is correct
Explanation: "Least privilege: [The] principle requiring that each subject be granted the most restrictive set of privileges needed for the performance of authorized tasks." -- Telcom Glossary
In many cases, this will result in increased efficiency, but that is not always the case.
& Section 188.8.131.52: Need to Know (Security Policy)
100. You're in charge of password management for a large user base. A good labor saving solution to install would be:
A. A self-service password reset facility (Example: answer your secret question and your password will be reset and emailed to you)
B. Biometric hardware
C. Both choices are correct
D. Neither choice is correct
Explanation: The traditional helpdesk activities associated with password management can be automated by offering a self-service interface that users can adopt to solve the problems associated with forgetting and expiration of passwords.
Biometric hardware may be an interesting idea to investigate for physically-centralized networks, but installation time and cost could be prohibitive for large and/or widely distributed networks.
& Section 184.108.40.206: Password Management (Security Policy)
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