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Question 1:

What is called the verification that the user\’s claimed identity is valid and is usually implemented through a user password at log-on time?

A. Authentication

B. Identification

C. Integrity

D. Confidentiality

Correct Answer: A

Explanation: Authentication is verification that the user\’s claimed identity is valid and is usually implemented through a user password at log-on time. Source: KRUTZ, Ronald L. and VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley and Sons, Page 36

Question 2:

The primary service provided by Kerberos is which of the following?

A. non-repudiation

B. confidentiality

C. authentication

D. authorization

Correct Answer: C

Explanation: non-repudiation. Since Kerberos deals primarily with symmetric cryptography, it does not help with non-repudiation.

confidentiality. Once the client is authenticated by Kerberos and obtains its session key and ticket, it may use them to assure confidentiality of its communication with a server; however, that is not a Kerberos service as such.

authorization. Although Kerberos tickets may include some authorization information, the meaning of the authorization fields is not standardized in the Kerberos specifications, and authorization is not a primary Kerberos service.

The following reference(s) were/was used to create this question:

ISC2 OIG,2007 p. 179-184

Shon Harris AIO v.3 152-155

Question 3:

Who developed one of the first mathematical models of a multilevel-security computer system?

A. Diffie and Hellman.

B. Clark and Wilson.

C. Bell and LaPadula.

D. Gasser and Lipner.

Correct Answer: C

Explanation: In 1973 Bell and LaPadula created the first mathematical model of a multi- level security system.

The following answers are incorrect:

Diffie and Hellman. This is incorrect because Diffie and Hellman was involved with cryptography.

Clark and Wilson. This is incorrect because Bell and LaPadula was the first model. The Clark-Wilson model came later, 1987

Gasser and Lipner. This is incorrect, it is a distractor. Bell and LaPadula was the first model

Question 4:

What is the BEST definition of SQL injection.

A. SQL injection is a database problem.

B. SQL injection is a web Server problem.

C. SQL injection is a windows and Linux website problem that could be corrected by applying a website vendors patch.

D. SQL injection is an input validation problem.

Correct Answer: D

Explanation: SQL injection is execution of unexpected SQL in the database as a result of unsanitized user input being accepted and used in the application code to form the SQL statement.It is a coding problem which affects inhouse, open

source and commercial software.

The following answers are incorrect:

SQL injection is a database problem.

SQL injection is a web Server problem.

SQL injection is a windows and Linux website problem that could be corrected by applying a website vendors patch.

The following reference(s) were/was used to create this question:

https://security.berkeley.edu/sites/default/files/uploads/SQLi_Prevention.pdf (page 9 and

10)

Question 5:

Which of the following access control models introduces user security clearance and data classification?

A. Role-based access control

B. Discretionary access control

C. Non-discretionary access control

D. Mandatory access control

Correct Answer: D

Explanation: The mandatory access control model is based on a security label system. Users are given a security clearance and data is classified. The classification is stored in the security labels of the resources. Classification labels specify

the level of trust a user must have to access a certain file.

Source: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw- Hill/Osborne, 2002, Chapter 4: Access Control (Page 154).

CISSP VCE DumpsCISSP Practice TestCISSP Study Guide

Question 6:

Which of the following control pairings include: organizational policies and procedures, pre- employment background checks, strict hiring practices, employment agreements, employee termination procedures, vacation scheduling, labeling of sensitive materials, increased supervision, security awareness training, behavior awareness, and sign-up procedures to obtain access to information systems and networks?

A. Preventive/Administrative Pairing

B. Preventive/Technical Pairing

C. Preventive/Physical Pairing

D. Detective/Administrative Pairing

Correct Answer: A

Explanation: organizational policies and procedures, pre-employment background checks, strict hiring practices, employment agreements, friendly and unfriendly employee termination procedures, vacation scheduling, labeling of sensitive materials, increased supervision, security awareness training, behavior awareness, and sign-up procedures to obtain access to information systems and networks. Source: KRUTZ, Ronald L. and VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley and Sons, Page 34

Question 7:

In a security context what are database views used for?

A. To ensure referential integrity

B. To allow easier access to data in a database

C. To restrict user access to data in a database

D. To provide audit trails

Correct Answer: C

Explanation: The use of a database view allows sensitive information to be hidden from unauthorized users. For example, the employee table might contain employee name, address, office extension and sensitive information such as social security number, etc. A view of the table could be constructed and assigned to the switchboard operator that only included the name and office extension.

To ensure referential integrity is incorrect. Referential integrity states that for each foriegn key value in a database table, there must be another table that contains a record with that value as its primary key (CBK, p. 607). For example, consider a record in the line-items table of an order management database — this table contains a foreign key of part-number from the parts-master table. Referential integrity states that for each part-number value in the line-items table, there must be a matching record with that same value in the parts- master table. Referential integrity helps avoids consistency problems that could occur when, for example, a part-number was deleted from parts-master that still appeared on records in the line-items table.

To allow easier access to the database is incorrect. While views can be used for this purpose by, for example, combining information from several tables in a single view, this is not the best answer for the use of views in a security context.

To provide audit trails is incorrect. Since a view only affects what columns of a table are shown, this has nothing to do with providing an audit trail. CBK, p. 632 AIOv3, p.168

Question 8:

Which access control model was proposed for enforcing access control in government and military applications?

A. Bell-LaPadula model

B. Biba model

C. Sutherland model

D. Brewer-Nash model

Correct Answer: A

Explanation: The Bell-LaPadula model, mostly concerned with confidentiality, was proposed for enforcing access control in government and military applications. It supports mandatory access control by determining the access rights from the

security levels associated with subjects and objects. It also supports discretionary access control by checking access rights from an access matrix. The Biba model, introduced in 1977, the Sutherland model, published in 1986, and the

Brewer-Nash model, published in 1989, are concerned with integrity.

Source: ANDRESS, Mandy, Exam Cram CISSP, Coriolis, 2001, Chapter 2: Access Control Systems and Methodology (page 11).

Question 9:

Which of the following pairings uses technology to enforce access control policies?

A. Preventive/Administrative

B. Preventive/Technical

C. Preventive/Physical

D. Detective/Administrative

Correct Answer: B

Explanation: The preventive/technical pairing uses technology to enforce access control policies.

TECHNICAL CONTROLS

Technical security involves the use of safeguards incorporated in computer hardware, operations or applications software, communications hardware and software, and related devices. Technical controls are sometimes referred to as logical

controls.

Preventive Technical Controls

Preventive technical controls are used to prevent unauthorized personnel or programs from gaining remote access to computing resources. Examples of these controls include:

?Access control software.

?Antivirus software.

?Library control systems.

?Passwords.

?Smart cards.

?Encryption.

?Dial-up access control and callback systems.

Preventive Physical Controls

Preventive physical controls are employed to prevent unauthorized personnel from entering computing facilities (i.e., locations housing computing resources, supporting utilities, computer hard copy, and input data media) and to help protect

against natural disasters.

Examples of these controls include:

?Backup files and documentation.

?Fences.

?Security guards.

?Badge systems.

?Double door systems.

?Locks and keys.

?Backup power.

?Biometric access controls.

?Site selection.

?Fire extinguishers.

Preventive Administrative Controls

Preventive administrative controls are personnel-oriented techniques for controlling people\’s behavior to ensure the confidentiality, integrity, and availability of computing data and programs. Examples of preventive administrative controls

include:

?Security awareness and technical training.

?Separation of duties.

?Procedures for recruiting and terminating employees.

?Security policies and procedures.

?Supervision.

?Disaster recovery, contingency, and emergency plans.

?User registration for computer access.

Source: KRUTZ, Ronald L. and VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley and Sons, Page 34

Question 10:

Single Sign-on (SSO) is characterized by which of the following advantages?

A. Convenience

B. Convenience and centralized administration

C. Convenience and centralized data administration

D. Convenience and centralized network administration

Correct Answer: B

Explanation: Convenience -Using single sign-on users have to type their passwords only once when they first log in to access all the network resources; and Centralized Administration as some single sign-on systems are built around a

unified server administration system. This allows a single administrator to add and delete accounts across the entire network from one user interface.

The following answers are incorrect:

Convenience – alone this is not the correct answer.

Centralized Data or Network Administration – these are thrown in to mislead the student. Neither are a benefit to SSO, as these specifically should not be allowed with just an SSO.

References: TIPTON, Harold F. and KRAUSE, MICKI, Information Security Management Handbook, 4th Edition, Volume 1, page 35 TIPTON, Harold F. and HENRY, Kevin, Official (ISC)2 Guide to the CISSP CBK, 2007, page

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