QUESTION: 205 Topic: 1, Access Control

Which of the following biometric devices has the lowest user acceptance level?

Retina Scan
Fingerprint scan
Hand geometry
Signature recognition

Answer(s): A

Explanation:

According to the cited reference, of the given options, the Retina scan has the lowest user acceptance level as it is needed for the user to get his eye close to a device and it is not user friendly and very intrusive.
However, retina scan is the most precise with about one error per 10 millions usage.
Look at the 2 tables below. If necessary right click on the image and save it on your desktop for a larger view or visit the web site directly at
https://sites.google.com/site/biometricsecuritysolutions/crossover-accuracy .
Biometric Comparison Chart

Biometric Aspect Descriptions

Reference:

RHODES, Keith A., Chief Technologist, United States General Accounting Office, National Preparedness, Technologies to Secure Federal Buildings, April 2002 (page 10).
and
https://sites.google.com/site/biometricsecuritysolutions/crossover-accuracy

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QUESTION: 206 Topic: 1, Access Control

Which of the following would be an example of the best password?

golf001
Elizabeth
T1me4g0lF
password

Answer(s): C

Explanation:

The best passwords are those that are both easy to remember and hard to crack using a dictionary attack. The best way to create passwords that fulfil both criteria is to use two small unrelated words or phonemes, ideally with upper and lower case characters, a special character, and/or a number. Shouldn't be used: common names, DOB, spouse, phone numbers, words found in dictionaries or system defaults.

Reference:

ROTHKE, Ben, CISSP CBK Review presentation on domain 1.

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QUESTION: 207 Topic: 1, Access Control

A network-based vulnerability assessment is a type of test also referred to as:

An active vulnerability assessment.
A routing vulnerability assessment.
A host-based vulnerability assessment.
A passive vulnerability assessment.

Answer(s): A

Explanation:

A network-based vulnerability assessment tool/system either re-enacts system attacks, noting and recording responses to the attacks, or probes different targets to infer weaknesses from their responses.
Since the assessment is actively attacking or scanning targeted systems, network-based vulnerability assessment systems are also called active vulnerability systems.
There are mostly two main types of test:
PASSIVE: You don't send any packet or interact with the remote target. You make use of public database and other techniques to gather information about your target.
ACTIVE: You do send packets to your target, you attempt to stimulate response which will help you in gathering information about hosts that are alive, services runnings, port state, and more.
See example below of both types of attacks:
Eavesdropping and sniffing data as it passes over a network are considered passive attacks because the attacker is not affecting the protocol, algorithm, key, message, or any parts of the encryption system. Passive attacks are hard to detect, so in most cases methods are put in place to try to prevent them rather than to detect and stop them.
Altering messages , modifying system files, and masquerading as another individual are acts that are considered active attacks because the attacker is actually doing something instead of sitting back and gathering datA. Passive attacks are usually used to gain information prior to carrying out an active attack.
IMPORTANT NOTE:
On the commercial vendors will sometimes use different names for different types of scans. However, the exam is product agnostic. They do not use vendor terms but general terms. Experience could trick you into selecting the wrong choice sometimes. See feedback from Jason below:
"I am a system security analyst. It is my daily duty to perform system vulnerability analysis. We use Nessus and Retina (among other tools) to perform our network based vulnerability scanning. Both commercially available tools refer to a network based vulnerability scan as a "credentialed" scan. Without credentials, the scan tool cannot login to the system being scanned, and as such will only receive a port scan to see what ports are open and exploitable"

Reference:

Harris, Shon (2012-10-18). CISSP All-in-One Exam Guide, 6th Edition (p. 865). McGraw-Hill.
Kindle Edition.
and
DUPUIS, Clement, Access Control Systems and Methodology CISSP Open Study Guide, version 1.0, march 2002 (page 97).

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QUESTION: 208 Topic: 1, Access Control

Which of the following is NOT a form of detective administrative control?

Rotation of duties
Required vacations
Separation of duties
Security reviews and audits

Answer(s): C

Explanation:

Detective administrative controls warn of administrative control violations. Rotation of duties, required vacations and security reviews and audits are forms of detective administrative controls. Separation of duties is the practice of dividing the steps in a system function among different individuals, so as to keep a single individual from subverting the process, thus a preventive control rather than a detective control.

Reference:

DUPUIS, Cl?ment, Access Control Systems and Methodology CISSP Open Study Guide, version 1.0 (march 2002).

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QUESTION: 205 Topic: 1, Access Control

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