By Ed Tittle, James Michael Stewart, Mike Chapple, Ed Tittel
This moment version of Sybex's in-depth examine advisor to the major safeguard certification, CISSP, contains improved assurance of the newest safeguard applied sciences plus extra illustrations for speedy rationalization. Written through IT safety specialists with years of real-world safeguard adventure, this e-book covers all respectable examination domain names and provides hundreds of thousands of demanding assessment questions, digital flashcards, and a searchable digital model of the whole booklet. subject insurance encompasses protection structure, entry keep watch over structures, cryptography, operations and actual defense, legislation, research & ethics. based on CertCities.com 2003 and 2002 Readers' selection Awards, Sybex is winner of ''Best learn Guides'' and CISSP is likely one of the ''10 preferred Certifications for 2004''.
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Additional info for CISSP (r): Certified Information Systems Security Professional Study Guide, 2nd Edition
Host-based IDSs have some difficulty with detecting and tracking down DoS attacks. Vulnerability scanners don't detect DoS attacks; they test for possible vulnerabilities. Penetration testing may cause a DoS or test for DoS vulnerabilities, but it is not a detection tool. For more information, please see Chapter 2. 6. D. Annualized loss expectancy (ALE) is the possible yearly cost of all instances of a specific realized threat against a specific asset. The ALE is calculated using the formula SLE∗ARO.
Identification and authentication are always together as a single two-step process. Providing an identity is step one and providing the authentication factor(s) is step two. Without both, a subject cannot gain access to a system—neither element alone is useful. ). Each authentication technique or factor has its unique benefits and drawbacks. Thus it is important to evaluate each mechanism in light of the environment in which it will be deployed to determine viability. Passwords The most common authentication technique is the use of passwords, but they are also considered to be the weakest form of protection.
Tokens should be stored and managed intelligently because once a token system is compromised, it can be difficult and expensive to replace. Tickets Ticket authentication is a mechanism that employs a third-party entity to prove identification and provide authentication. The most common and well-known ticket system is Kerberos. Kerberos was developed under Project Athena at MIT. Its name is borrowed from Greek mythology. A three-headed dog named Kerberos guards the gates to the underworld, but in the myth, the three-headed dog faced inward, thus preventing escape rather than preventing entrance.