Which of the following best ensures accountability of users for the actions taken within a system or domain?
Answer(s): B
Details:The only way to ensure accountability is if the subject is uniquely identified and authenticated. Identification alone does not provide proof the user is who they claim to be. After showing proper credentials, a user is authorized access to resources.
HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw-Hill/Osborne, 2002, Chapter 4: Access Control (page 126).
Which of the following statements pertaining to biometrics is FALSE?
Answer(s): C
As this is not a characteristic of Biometrics this is the rigth choice for this question. This is one of the three basic way authentication can be performed and it is not related to Biometrics. Example of something you know would be a password or PIN for example.Please make a note of the negative 'FALSE' within the question. This question may seem tricky to some of you but you would be amazed at how many people cannot deal with negative questions. There will be a few negative questions within the real exam, just like this one the keyword NOT or FALSE will be in Uppercase to clearly indicate that it is negative.Biometrics verifies an individual's identity by analyzing a unique personal attribute or behavior, which is one of the most effective and accurate methods of performing authentication (one to one matching) or identification (a one to many matching).A biometric system scans an attribute or behavior of a person and compares it to a template store within an authentication server datbase, such template would be created in an earlier enrollment process. Because this system inspects the grooves of a person's fingerprint, the pattern of someone's retina, or the pitches of someone's voice, it has to be extremely sensitive.The system must perform accurate and repeatable measurements of anatomical or physiological characteristics. This type of sensitivity can easily cause false positives or false negatives. The system must be calibrated so that these false positives and false negatives occur infrequently and the results are as accurate as possible.There are two types of failures in biometric identification:False Rejection also called False Rejection Rate (FRR) -- The system fail to recognize a legitimate user. While it could be argued that this has the effect of keeping the protected area extra secure, it is an intolerable frustration to legitimate users who are refused access because the scanner does not recognize them.False Acceptance or False Acceptance Rate (FAR) -- This is an erroneous recognition, either by confusing one user with another or by accepting an imposter as a legitimate user.Physiological Examples:Unique Physical Attributes:Fingerprint (Most commonly accepted)Hand GeometryRetina Scan (Most accurate but most intrusive)Iris ScanVascular ScanBehavioral Examples:Repeated ActionsKeystroke Dynamics(Dwell time (the time a key is pressed) and Flight time (the time between "key up" and the next "key down").Signature Dynamics(Stroke and pressure points)EXAM TIP:Retina scan devices are the most accurate but also the most invasive biometrics system available today. The continuity of the retinal pattern throughout life and the difficulty in fooling such a device also make it a great long-term, high-security option. Unfortunately, the cost of the proprietary hardware as well the stigma of users thinking it is potentially harmful to the eye makes retinalscanning a bad fit for most situations.Remember for the exam that fingerprints are the most commonly accepted type of biometrics system.The other answers are incorrect:'Users can be authenticated based on behavior.' is incorrect as this choice is TRUE as it pertains to BIOMETRICS.Biometrics systems makes use of unique physical characteristics or behavior of users.'User can be authenticated based on unique physical attributes.' is also incorrect as this choice is also TRUE as it pertains to BIOMETRICS. Biometrics systems makes use of unique physical characteristics or behavior of users.'A biometric system's accuracy is determined by its crossover error rate (CER)' is also incorrect as this is TRUE as it also pertains to BIOMETRICS. The CER is the point at which the false rejection rates and the false acceptance rates are equal. The smaller the value of the CER, the more accurate the system.
Hernandez CISSP, Steven (2012-12-21). Official (ISC)2 Guide to the CISSP CBK, Third Edition ((ISC)2 Press) (Kindle Locations 25353-25356). Auerbach Publications. Kindle Edition.andHernandez CISSP, Steven (2012-12-21). Official (ISC)2 Guide to the CISSP CBK, Third Edition ((ISC)2 Press) (Kindle Locations 25297-25303). Auerbach Publications. Kindle Edition.
Which of the following biometric devices offers the LOWEST CER?
From most effective (lowest CER) to least effective (highest CER) are:Iris scan, fingerprint, voice verification, keystroke dynamics. Reference : Shon Harris Aio v3 , Chapter-4 : Access Control , Page : 131 Also see: http://www.sans.org/reading_room/whitepapers/authentication/biometric-selection-body- parts-online_139
Which of the following is the LEAST user accepted biometric device?
The biometric device that is least user accepted is the retina scan, where a system scans the blood-vessel pattern on the backside of the eyeball. When using this device, an individual has to place their eye up to a device, and may require a puff of air to be blown into the eye. The iris scan only needs for an individual to glance at a camera that could be placed above a door.
HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw-Hill/Osborne, 2002, Chapter 4: Access Control (page 131).
Which of the following is the WEAKEST authentication mechanism?
Most of the time users usually choose passwords which can be guessed , hence passwords is the BEST answer out of the choices listed above.The following answers are incorrect because :Passphrases is incorrect as it is more secure than a password because it is longer.One-time passwords is incorrect as the name states , it is good for only once and cannot be reused.Token devices is incorrect as this is also a password generator and is an one time password mechanism.
Shon Harris AIO v3 , Chapter-4 : Access Control , Page : 139 , 142.
Share your comments for ISC SSCP exam with other users:
its very useful
i mastered my skills and aced the comptia 220-1102 exam with a score of 920/1000. i give the credit to for my success.
real questions
very helpful assessments
hi there, i would like to get dumps for this exam
i studied for the microsoft azure az-204 exam through it has 100% real questions available for practice along with various mock tests. i scored 900/1000.
please upload 1z0-1072-23 exam dups
i was hoping if you could please share the pdf as i’m currently preparing to give the exam.
i am looking for oracle 1z0-116 exam
where we can get the answer to the questions
nice questions
question 129 is completely wrong.
i need dump
love the site.
can you please upload it back?
could you please re-upload this exam? thanks a lot!
great about shared quiz
goood helping
pay attention to questions. they are very tricky. i waould say about 80 to 85% of the questions are in this exam dump.
wish you would allow more free questions
great simulation
very g inood
q35 should be a
sap c_ts450_2021
ecellent materil for unserstanding
good so far
this is way too informative
very helpfull
q.189 - answers are incorrect.
awesome job in getting these questions
i cant find aws certified practitioner clf-c01 exam in aws website but i found aws certified practitioner clf-c02 exam. can everyone please verify the difference between the two clf-c01 and clf-c02? thank you
grazie mille. i got a satisfactory mark in my exam test today because of this exam dumps. sorry for my english.
some of the answers are incorrect. need to be reviewed.