Question 19

Certification and Accreditation (C&A or CnA) is a process for implementing information security. Which of the following is the correct order of C&A phases in a DITSCAP assessment?

Correct Answer:C
C&A consists of four phases in a DITSCAP assessment. These phases are the same as NIACAP phases. The order of these phases is as follows:
* 1.Definition: The definition phase is focused on understanding the IS business case, the mission, environment, and architecture. This phase determines the security requirements and level of effort necessary to achieve Certification & Accreditation (C&A).
* 2.Verification: The second phase confirms the evolving or modified system's compliance with the information. The verification phase ensures that the fully integrated system will be ready for certification testing.
* 3.Validation: The third phase confirms abidance of the fully integrated system with the security policy. This phase follows the requirements slated in the SSAA. The objective of the validation phase is to show the required evidence to support the DAA in accreditation process.
* 4.Post Accreditation: The Post Accreditation is the final phase of DITSCAP assessment and it starts after the system has been certified and accredited for operations. This phase ensures secure system management, operation, and maintenance to save an acceptable level of residual risk.

Question 20

Which of the following security models dictates that subjects can only access objects through applications?

Correct Answer:C
The Clark-Wilson security model dictates that subjects can only access objects through applications. Answer A is incorrect. The Biba model does not let subjects write to objects at a higher integrity level. Answer B is incorrect. The Bell-LaPadula model has a simple security rule, which means a subject cannot read data from a higher level. Answer D is incorrect. There is no such model as Biba-Clark model.

Question 21

Microsoft software security expert Michael Howard defines some heuristics for determining code review in "A Process for Performing Security Code Reviews". Which of the following heuristics increase the application's attack surface? Each correct answer represents a complete solution. Choose all that apply.

Correct Answer:BDEF
Microsoft software security expert Michael Howard defines the following heuristics for determining code review in "A Process for Performing Security Code Reviews": Old code: Newer code provides better understanding of software security and has lesser number of vulnerabilities. Older code must be checked deeply. Code that runs by default: It must have high quality, and must be checked deeply than code that does not execute by default. Code that runs by default increases the application's attack surface. Code that runs in elevated context: It must have higher quality. Code that runs in elevated privileges must be checked deeply and increases the application's attack surface. Anonymously accessible code: It must be checked deeply than code that only authorized users and administrators can access, and it increases the application's attack surface. Code listening on a globally accessible network interface: It must be checked deeply for security vulnerabilities and increases the application's attack surface. Code written in C/C++/assembly language: It is prone to security vulnerabilities, for example, buffer overruns. Code with a history of security vulnerabilities: It includes additional vulnerabilities except concerted efforts that are required for removing them. Code that handles sensitive data: It must be checked deeply to ensure that data is protected from unintentional disclosure. Complex code: It includes undiscovered errors because it is more difficult to analyze complex code manually and programmatically. Code that changes frequently: It has more security vulnerabilities than code that does not change frequently.

Question 22

Which of the following specifies the behaviors of the DRM implementation and any applications that are accessing the implementation?

Correct Answer:D
The Compliance rule specifies the behaviors of the DRM implementation and any applications that are accessing the implementation. The compliance rule specifies the following elements: Definition of specific license rights Device requirements Revocation of license path or penalties when the implementation is not robust enough or noncompliant Answer B is incorrect. Over- the- air provisioning is a mechanism to deploy MIDlet suites over a network. It is a method of distributing MIDlet suites. MIDlet suite providers install their MIDlet suites on Web servers and provide a hypertext link for downloading. A user can use this link to download the MIDlet suite either through the Internet microbrowser or through WAP on his device. Answer B is incorrect. An access control is a system, which enables an authority to control access to areas and resources in a given physical facility, or computer-based information system. Access control system, within the field of physical security, is generally seen as the second layer in the security of a physical structure. It refers to all mechanisms that control visibility of screens, views, and data within Siebel Business Applications. Answer A is incorrect. OS fingerprinting is a process in which an external host sends special traffic on the external network interface of a computer to determine the computer's operating system. It is one of the primary steps taken by hackers in preparing an attack.

Question 23

Who amongst the following makes the final accreditation decision?

Correct Answer:C
The DAA, also known as Authorizing Official, makes the final accreditation decision. The Designated Approving Authority (DAA), in the United States Department of Defense, is the official with the authority to formally assume responsibility for operating a system at an acceptable level of risk. The DAA is responsible for implementing system security. The DAA can grant the accreditation and can determine that the system's risks are not at an acceptable level and the system is not ready to be operational. Answer D is incorrect. An Information System Security Officer (ISSO) plays the role of a supporter. The responsibilities of an Information System Security Officer (ISSO) are as follows: Manages the security of the information system that is slated for Certification & Accreditation (C&A). Insures the information systems configuration with the agency's information security policy. Supports the information system owner/information owner for the completion of security- related responsibilities. Takes part in the formal configuration management process. Prepares Certification & Accreditation (C&A) packages. Answer A is incorrect. An Information System Security Engineer (ISSE) plays the role of an advisor. The responsibilities of an Information System Security Engineer are as follows: Provides view on the continuous monitoring of the information system. Provides advice on the impacts of system changes. Takes part in the configuration management process. Takes part in the development activities that are required to implement system changes. Follows approved system changes. Answer B is incorrect. A Chief Risk Officer (CRO) is also known as Chief Risk Management Officer (CRMO). The Chief Risk Officer or Chief Risk Management Officer of a corporation is the executive accountable for enabling the efficient and effective governance of significant risks, and related opportunities, to a business and its various segments. Risks are commonly categorized as strategic, reputational, operational, financial, or compliance-related. CRO's are accountable to the Executive Committee and The Board for enabling the business to balance risk and reward. In more complex organizations, they are generally responsible for coordinating the organization's Enterprise Risk Management (ERM) approach.

Question 24

Which of the following roles is also known as the accreditor?

Correct Answer:D
Designated Approving Authority (DAA) is also known as the accreditor. Answer A is incorrect. The data owner (information owner) is usually a member of management, in charge of a specific business unit, and is ultimately responsible for the protection and use of a specific subset of information. Answer B is incorrect. A Chief Risk Officer (CRO) is also known as Chief Risk Management Officer (CRMO). The Chief Risk Officer or Chief Risk Management Officer of a corporation is the executive accountable for
enabling the efficient and effective governance of significant risks, and related opportunities, to a business and its various segments. Risks are commonly categorized as strategic, reputational, operational, financial, or compliance-related. CRO's are accountable to the Executive Committee and The Board for enabling the business to balance risk and reward. In more complex organizations, they are generally responsible for coordinating the organization's Enterprise Risk Management (ERM) approach. Answer C is incorrect. The Chief Information Officer (CIO), or Information Technology (IT) director, is a job title commonly given to the most senior executive in an enterprise responsible for the information technology and computer systems that support enterprise goals. The CIO plays the role of a leader and reports to the chief executive officer, chief operations officer, or chief financial officer. In military organizations, they report to the commanding officer.

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