In Mike Myer’s CompTIA Aegis Acceptance Passport, Third Edition for Assay SYO-301, columnist T. J. Samuelle provides information, definitions and able admonition for casual the CompTIA Aegis acceptance exam. The book includes questions and answers to be acclimated as a CompTIA aegis convenance exam.
The afterward extract comes from Affiliate 7: Affidavit and Character Management (pdf). The extract describes three affidavit apparatus for acceptance a user’s identity.
Single-Factor AuthenticationSingle-factor affidavit refers to acute alone one agency (such as a password) to accredit a user. The arrangement compares the countersign for the annual with a database of accepted usernames and passwords and again authenticates the user if they match. This is the simplest but weakest anatomy of authentication, because users’ passwords tend to be weak.
Single-factor affidavit can additionally absorb a alluring bash agenda or brand acclimated to accessible a bound door. This is additionally a anemic anatomy of authentication, as the agenda or brand can be calmly absent or baseborn and an crooked user can artlessly use the agenda or brand to admission the aperture after defective to accommodate any added credentials.
Typically,the biometric agency is the third and chief factorused in aggregate with an admission agenda and password.
Two-Factor AuthenticationTwo-factor affidavit about combines two single-factor affidavit types, such as article the user knows and article the user possesses. For example, best ATM cyberbanking affairs crave two-factor authentication: The user inserts a concrete cyberbanking agenda into the apparatus and again types a PIN, which is akin with the cyberbanking admonition independent on the card’s alluring strip. One affidavit agency should be physical, such as a acute agenda or admission brand (something the user possesses) and the additional agency should be a countersign or PIN (something the user knows). After these two items, no admission can be granted.
Three-Factor AuthenticationThree-factor affidavit is the arch anatomy of user affidavit and involves a aggregate of concrete items, such as a acute card, brand or biometric factor, and aerial items, such as passwords, passphrases and PINs. Typically, the biometric agency is the third and chief agency acclimated in aggregate with an admission agenda and password. For example, afore he can admission a high-security facility, a user ability accept to admit a acute agenda into a door, admission a PIN on a keypad, and again admit his feel into a scanner.
Single Sign-onIn aboriginal computer systems, back networking wasn’t as accessible as it is today, anniversary computer independent a set of assets the user could access. To admission the assets of a computer system, the user would use a specific login and password. Anniversary specific computer bare a abstracted login and password. This was annoying for computer users and administrators alike, because of the abundance with which login accounts and passwords bare to be displace for anniversary computer if a user forgot them.
Nowadays, avant-garde networks accommodate assets that are advance throughout the computer arrangement and that can be accessed by any user from any location. The user can be onsite on her own computer, or she can be logged in from home or on the alley application dial-up methods or via the Internet. With the all-inclusive bulk of assets that can be independent on a ample computer network, the abstraction of altered logins and passwords for anniversary assets has been alone in favor of a distinct sign-on to the network; the user has to be accurate alone already on the arrangement to admission the network’s resources. This blazon of centralized administering is a abundant added able way for a arrangement ambassador to ascendancy admission to the network. User annual action templates can be created and acclimated arrangement advanced to abolish the charge to configure anniversary user’s annual settings individually, except for a altered login and password.
An archetype of distinct sign-on is a Microsoft Active Directory username and countersign appropriate for accessing directories, files and printers on a network, forth with Microsoft Exchange mail servers and SQL database servers. LDAP is additionally a accepted affidavit database acclimated for distinct sign-on purposes.
The affiliate concludes with some analysis questions that the clairvoyant can use as a aegis acceptance convenance analysis back advancing for the Aegis exam.
Review question: You are creating an affidavit apparatus for concrete admission to a high-security government building. The high-security attributes of the ability requires at atomic a three-factor affidavit model. Which of the affidavit types do you use?
A. Biometric eye scanB. Acute agenda and PINC. Acute card, PIN, and fingerprint scanD. ID brand and password
Correct answer: C. For a three-factor affidavit model, you charge at atomic three altered types of authentication. A biometric eye scan, while acutely secure, is still alone a one-factor system, while the added methods are alone two-factor, such as a acute agenda and a PIN.
Excerpted from Mike Meyers’ CompTIA Aegis Acceptance Passport, Third Edition (Exam SY0-301), (McGraw-Hill; 2011) by T. J. Samuelle with permission from McGraw-Hill.
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