By Lawrence C. Miller, Peter H. Gregory
* The CISSP (Certified info platforms safety expert) credential from the overseas details structures defense Certification Consortium, Inc. (ISC)2 is the world's top IT safety certification, with 30,000 members qualified and as many as seven instances that quantity taking the examination* The down-to-earth, jargon-free Dummies kind units this e-book except different CISSP exam-prep publications, making it effortless for applicants to grasp the most recent (ISC)2 universal physique of information and the 10 domain names demonstrated through the CISSP* contains fast exams at first of every bankruptcy, a Prep try out on the finish of every bankruptcy, and a full-length perform examination designed for the publication* The CD-ROM positive factors countless numbers of randomly generated try out questions in addition to timed and untimed perform exams
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Additional info for CISSP For Dummies
If the duration is set to forever, an administrator must unlock the account. Some systems don’t notify the user when an account has been locked out but instead quietly alert the system administrator to a possible break-in attempt. • Limited time periods: This control restricts the time of day that a user can log in. For example, limiting users to access during business hours only is very effective. However, this type of control is becoming less common in the modern age of the workaholic with erratic work hours and in the global economy.
Every account that exists in a system, network, or application is a potential point of unauthorized access. Multiple accounts belonging to a single user represent an even greater vulnerability: • Users that require access to multiple systems or applications must often maintain numerous different passwords. This inevitably leads to shortcuts in creating and recalling passwords; weak passwords with only slight variations are used and more likely to be written down. ). Someone has to create and maintain accounts; supporting, removing, resetting, and disabling passwords, as well as unlocking accounts.
A multilevel system is a single computer system that handles multiple classification levels between subjects and objects. Two important concepts in MAC are • Cross-Reference Sensitivity labels: In a MAC-based system, all subjects and objects must have labels assigned. A subject’s sensitivity label specifies its level of trust. An object’s sensitivity label specifies the level of trust required for access. In order to access a given object, the subject must have a sensitivity level equal to or higher than the requested object.