The automatic watch winder mimics the motions of its wearer and maintains the watchs functionality. For most people, watch winders are not necessary. Most experts agree that watch winders are convenience products, not necessarily for your every day watch. Prices for automatic watch winders can easily be into the thousands of dollars but are commonly used by collectors and watch enthusiasts. People who own very expensive, antique, collectible or beloved watches often do not wear them enough (if at all); in cases such as this, many people find that an automatic watch winder keeps their treasured items working nicely.

Kinetic watch winders are among the most popular and utilized winders on the market today. Like other common watch winders, they are based on the principle of using body motion to move the small, internal watch weight to keep the watch wound. The difference in kinetic watch winders and other winder products is the usage of a quartz crystal in the watch. Body movements, particularly the normal movement of the wrist, cause the crystal to act similar to a weight. The crystal becomes charged by these movements and can keep the watch operating properly for up to two weeks.

How can you determine if you may need a watch winder? Firstly, watch winders are considered useful as a convenience but not completely a necessary item. Most watches that are automatic will have automatic marked, usually on the fact of the watch. Another way to tell is if there is the absence of a compartment to hold a battery. Another instance in which one might need a watch winder is if he or she owns multiple automatic watches. Obviously, if you own more than one automatic watch, at least one of them will not be worn frequently. In order to prevent the less-than-frequently worn watches from running down, an automatic watch winder can be very handy. Basically, if you own more than one automatic watch or you wear your watch less than at least a few days a week, a watch winder might be something to consider.

Experts suggest that if you choose to purchase a watch winder to choose one with care. Some even suggest that buying a poor quality automatic watch winder is worse than not having one at all. Since automatic watches are designed to store energy based on human body movement, watch winders should be created to mimic those movements as closely as possible. Carefully crafted and designed watch winders perform fixed number of directions and types of movement. Poorly crafted watch winders may not have as smooth or delicate movements thereby causing unnecessary damage to the delicate workings of your treasured timepiece.

SSCP Actual Exam by John AdamsQuestion: 1A potential problem related to the physical installation of the Iris Scanner in regards to the usage of the iris pattern within a biometric system is:A. concern that the laser beam may cause eye damageB. the iris pattern changes as a person grows older.C. there is a relatively high rate of false accepts.D. the optical unit must be positioned so that the sun does not shine into the aperture.Answer: D Explanation:Because the optical unit utilizes a camera and infrared light to create the images, sun light can impact the aperture so it must not be positioned in direct light of any type. Because the subject does not need to have direct contact with the optical reader, direct light can impact the reader.An Iris recognition is a form of biometrics that is based on the uniqueness of a subject’s iris. A camera like device records the patterns of the iris creating what is known as Iriscode.It is the unique patterns of the iris that allow it to be one of the most accurate forms of biometric identification of an individual. Unlike other types of biometics, the iris rarely changes over time. Fingerprints can change over time due to scaring and manual labor, voice patterns can change due to a variety of causes, hand geometry can also change as well. But barring surgery or an accident it is not usual for an iris to change. The subject has a high-resoulution image taken of their iris and this is then converted to Iriscode. The current standard for the Iriscode was developed by John Daugman. When the subject attempts to be authenticated an infrared light is used to capture the iris image and this image is then compared to the Iriscode. If there is a match the subject’s identity is confirmed. The subject does not need to have direct contact with the optical reader so it is a less invasive means of authentication then retinal scanning would be.Reference(s) used for this question:AIO, 3rd edition, Access Control, p 134.AIO, 4th edition, Access Control, p 182.Wikipedia – http://en.wikipedia.org/wiki/Iris_recognitionThe following answers are incorrect:concern that the laser beam may cause eye damage. The optical readers do not use laser so, concern that the laser beam may cause eye damage is not an issue.the iris pattern changes as a person grows older. The question asked about the physical installation of the scanner, so this was not the best answer. If the question would have been about long term problems then it could have been the best choice. Recent research has shown that Irises actually do change over time: http://www.nature.com/news/ageing-eyes-hinder-biometric-scans-1.10722there is a relatively high rate of false accepts. Since the advent of the Iriscode there is a very low rate of false accepts, in fact the algorithm used has never had a false match. This all depends on the quality of the equipment used but because of the uniqueness of the iris even when comparing identical twins, iris patterns are unique.Question: 2In Mandatory Access Control, sensitivity labels attached to object contain what information?A. The item’s classificationB. The item’s classification and category setC. The item’s categoryD. The items’s need to knowAnswer: B Explanation:A Sensitivity label must contain at least one classification and one category set.Category set and Compartment set are synonyms, they mean the same thing. The sensitivity label must contain at least one Classification and at least one Category. It is common in some environments for a single item to belong to multiple categories. The list of all the categories to which an item belongs is called a compartment set or category set.The following answers are incorrect:the item’s classification. Is incorrect because you need a category set as well.the item’s category. Is incorrect because category set and classification would be both be required.The item’s need to know. Is incorrect because there is no such thing. The need to know is indicated by the catergories the object belongs to. This is NOT the best answer.Reference(s) used for this question:OIG CBK , Access Control (pages 186 – 188)AIO, 3rd Edition, Access Control (pages 162 – 163)AIO, 4th Edittion, Access Control, pp 212-214.Wikipedia – http://en.wikipedia.org/wiki/Mandatory_Access_ControlQuestion: 3What are the components of an object’s sensitivity label?A. A Classification Set and a single Compartment.B. A single classification and a single compartment.C. A Classification Set and user credentials.D. A single classification and a Compartment Set.Answer: D Explanation:Both are the components of a sensitivity label.The following are incorrect:A Classification Set and a single Compartment. Is incorrect because the nomenclature “Classification Set” is incorrect, there only one classifcation and it is not a “single compartment” but a Compartment Set.A single classification and a single compartment. Is incorrect because while there only is one classifcation, it is not a “single compartment” but a Compartment Set.A Classification Set and user credentials. Is incorrect because the nomenclature “Classification Set” is incorrect, there only one classifcation and it is not “user credential” but a Compartment Set. The user would have their own sensitivity label.Question: 4What does it mean to say that sensitivity labels are “incomparable”?A. The number of classification in the two labels is different.B. Neither label contains all the classifications of the other.C. the number of categories in the two labels are different.D. Neither label contains all the categories of the other.Answer: D Explanation:If a category does not exist then you cannot compare it. Incomparable is when you have two disjointed sensitivity labels, that is a category in one of the labels is not in the other label. “Because neither label contains all the categories of the other, the labels can’t be compared. They’re said to be incomparable”COMPARABILITY:The label:TOP SECRET [VENUS ALPHA] is “higher” than either of the labels:SECRET [VENUS ALPHA] TOP SECRET [VENUS] But you can’t really say that the label:TOP SECRET [VENUS] is higher than the label:SECRET [ALPHA] Because neither label contains all the categories of the other, the labels can’t be compared. They’re said to be incomparable. In a mandatory access control system, you won’t be allowed access to a file whose label is incomparable to your clearance.The Multilevel Security policy uses an ordering relationship between labels known as the dominance relationship. Intuitively, we think of a label that dominates another as being “higher” than the other. Similarly, we think of a label that is dominated by another as being “lower” than the other. The dominance relationship is used to determine permitted operations and information flows.DOMINANCEThe dominance relationship is determined by the ordering of the Sensitivity/Clearance component of the label and the intersection of the set of Compartments.Sample Sensitivity/Clearance ordering are: Top Secret > Secret > Confidential > Unclassified s3 > s2 > s1 > s0Formally, for label one to dominate label 2 both of the following must be true: The sensitivity/clearance of label one must be greater than or equal to the sensitivity/clearance of label two. The intersection of the compartments of label one and label two must equal the compartments of label two.Additionally: Two labels are said to be equal if their sensitivity/clearance and set of compartments are exactly equal. Note that dominance includes equality. One label is said to strictly dominate the other if it dominates the other but is not equal to the other. Two labels are said to be incomparable if each label has at least one compartment that is not included in the other’s set of compartments.The dominance relationship will produce a partial ordering over all possible MLS labels, resulting in what is known as the MLS Security Lattice.The following answers are incorrect:The number of classification in the two labels is different. Is incorrect because the categories are what is being compared, not the classifications.Neither label contains all the classifications of the other. Is incorrect because the categories are what is being compared, not the classifications.the number of categories in the two labels is different. Is incorrect because it is possibe a category exists more than once in one sensitivity label and does exist in the other so they would be comparable.Reference(s) used for this question:OReilly – Computer Systems and Access Control (Chapter 3)http://www.oreilly.com/catalog/csb/chapter/ch03.htmlandhttp://rubix.com/cms/mls_domQuestion: 5Which of the following is true about Kerberos?A. It utilizes public key cryptography.B. It encrypts data after a ticket is granted, but passwords are exchanged in plain text.C. It depends upon symmetric ciphers.D. It is a second party authentication system.Answer: C Explanation:Kerberos depends on secret keys (symmetric ciphers). Kerberos is a third party authentication protocol. It was designed and developed in the mid 1980’s by MIT. It is considered open source but is copyrighted and owned by MIT. It relies on the user’s secret keys. The password is used to encrypt and decrypt the keys.The following answers are incorrect:It utilizes public key cryptography. Is incorrect because Kerberos depends on secret keys (symmetric ciphers).It encrypts data after a ticket is granted, but passwords are exchanged in plain text. Is incorrect because the passwords are not exchanged but used for encryption and decryption of the keys.It is a second party authentication system. Is incorrect because Kerberos is a third party authentication system, you authenticate to the third party (Kerberos) and not the system you are accessing.References:MIT http://web.mit.edu/kerberos/Wikipedi http://en.wikipedia.org/wiki/Kerberos_%28protocol%29OIG CBK Access Control (pages 181 – 184)AIOv3 Access Control (pages 151 – 155)Question: 6Which of the following is needed for System Accountability?A. Audit mechanisms.B. Documented design as laid out in the Common Criteria.C. Authorization.D. Formal verification of system design.Answer: A Explanation:Is a means of being able to track user actions. Through the use of audit logs and other tools the user actions are recorded and can be used at a later date to verify what actions were performed.Accountability is the ability to identify users and to be able to track user actions.The following answers are incorrect:Documented design as laid out in the Common Criteria. Is incorrect because the Common Criteria is an international standard to evaluate trust and would not be a factor in System Accountability.Authorization. Is incorrect because Authorization is granting access to subjects, just because you have authorization does not hold the subject accountable for their actions.Formal verification of system design. Is incorrect because all you have done is to verify the system design and have not taken any steps toward system accountability.References:OIG CBK Glossary (page 778)Question: 7What is Kerberos?A. A three-headed dog from the egyptian mythology.B. A trusted third-party authentication protocol.C. A security model.D. A remote authentication dial in user server.Answer: B Explanation:Is correct because that is exactly what Kerberos is.The following answers are incorrect:A three-headed dog from Egyptian mythology. Is incorrect because we are dealing with Information Security and not the Egyptian mythology but the Greek Mythology.A security model. Is incorrect because Kerberos is an authentication protocol and not just a security model.A remote authentication dial in user server. Is incorrect because Kerberos is not a remote authentication dial in user server that would be called RADIUS.Question: 8The three classic ways of authenticating yourself to the computer security software are by something you know, by something you have, and by something:A. you need.B. non-trivialC. you are.D. you can get.Answer: C Explanation:This is more commonly known as biometrics and is one of the most accurate ways to authenticate an individual.The rest of the answers are incorrect because they not one of the three recognized forms for Authentication.Question: 9A timely review of system access audit records would be an example of which of the basic security functions?A. avoidance.B. deterrence.C. prevention.D. detection.Answer: D Explanation:By reviewing system logs you can detect events that have occured.The following answers are incorrect:avoidance. This is incorrect, avoidance is a distractor. By reviewing system logs you have not avoided anything.deterrence. This is incorrect because system logs are a history of past events. You cannot deter something that has already occurred.prevention. This is incorrect because system logs are a history of past events. You cannot prevent something that has already occurred.Question: 10A confidential number used as an authentication factor to verify a user’s identity is called a:A. PINB. User IDC. PasswordD. ChallengeAnswer: A Explanation:PIN Stands for Personal Identification Number, as the name states it is a combination of numbers.The following answers are incorrect:User ID This is incorrect because a Userid is not required to be a number and a Userid is only used to establish identity not verify it.Password. This is incorrect because a password is not required to be a number, it could be any combination of characters.Challenge. This is incorrect because a challenge is not defined as a number, it could be anything.Test Information:Total Questions: 1076Test Number: SSCPVendor Name: ISC2Cert Name: SSCPTest Name: Systems Security Certified PractitionerOfficial Site: https://www.certschief.com/For More Details: https://www.certschief.com/exam/SSCP/Article Source: eArticlesOnline.com