Only acceptance is appropriate for both positive and negative risk events. Often sharing is used for low probability and low impact risk events regardless of the positive or negative effects the risk event may bring the project. Acceptance response is a part of Risk Response planning process. Acceptance response delineates that the project plan will not be changed to deal with the risk. Management may develop a contingency plan if the risk does occur. Acceptance response to a risk event is a strategy that can be used for risks that pose either threats or opportunities. Acceptance response can be of two types: Passive acceptance: It is a strategy in which no plans are made to try or avoid or mitigate the risk. Active acceptance: Such responses include developing contingency reserves to deal with risks, in case they occur. Acceptance is the only response for both threats and opportunities. Answer: C is incorrect. Sharing is a positive risk response that shares an opportunity for all parties involved in the risk event. Answer: B is incorrect. Transference is a negative risk event that transfers the risk ownership to a third party, such as vendor, through a contractual relationship. Answer: D is incorrect. Mitigation is a negative risk event that seeks to lower the probability and/or impact of a risk event.

The take-grant protection model is a formal model used in the field of computer security to establish or disprove the safety of a given computer system that follows specific rules. It shows that for specific systems the question of safety is decidable in linear time, which is in general undecidable. The model represents a system as directed graph, where vertices are either subjects or objects. The edges between them are labeled and the label indicates the rights that the source of the edge has over the destination. Two rights occur in every instance of the model: take and grant. They play a special role in the graph rewriting rules describing admissible changes of the graph. Answer: D is incorrect. The access matrix is a straightforward approach that provides access rights to subjects for objects. Answer: C is incorrect. The Bell-LaPadula model deals only with the confidentiality of classified material. It does not address integrity or availability. Answer: B is incorrect. The integrity model was developed as an analog to the Bell-LaPadula confidentiality model and then became more sophisticated to address additional integrity requirements.

Penetration testing (also called pen testing) is the practice of testing a computer system, network, or Web application to find vulnerabilities that an attacker could exploit. Following are the areas that can be exploited in a penetration test: Kernel flaws: Kernel flaws refer to the exploitation of kernel code flaws in the operating system. Buffer overflows: Buffer overflows refer to the exploitation of a software failure to properly check for the length of input data. This overflow can cause malicious behavior on the system. Race conditions: A race condition is a situation in which an attacker can gain access to a system as a privileged user. File and directory permissions: In this area, an attacker exploits weak permissions restrictions to gain unauthorized access of documents. Trojan horses: These are malicious programs that can exploit an information system by attaching themselves in valid programs and files. Social engineering: In this technique, an attacker uses his social skills and persuasion to acquire valuable information that can be used to conduct an attack against a system.

The Phase 1 of the DITSCAP C & A process is known as Definition Phase. The goal of this phase is to define the C & A level of effort, identify the main C & A roles and responsibilities, and create an agreement on the method for implementing the security requirements. Answer: C is incorrect. The Phase 2 of the DITSCAP C & A process is known as Verification. Answer: D is incorrect. The Phase 3 of the DITSCAP C & A process is known as Validation. Answer: B is incorrect. The Phase 4 of the DITSCAP C & A process is known as Post Accreditation.

NIACAP is a process, which provides a standard set of activities, general tasks, and a management structure to certify and accredit systems that maintain the information assurance and the security posture of a system or site. Answer: D is incorrect. DITSCAP is a process, which establishes a standard process, a set of activities, general task descriptions, and a management structure to certify and accredit the IT systems that will maintain the required security posture. Answer: A is incorrect. The NSA-IAM evaluates information systems at a high level and uses a subset of the SSE-CMM process areas to measure the implementation of information security on these systems. Answer: C is incorrect. ASSET is a tool developed by NIST to automate the process of self-assessment through the use of the questionnaire in NIST.

The various DoD policy series are as follows:

Continuous Monitoring is the fourth phase of the security certification and accreditation process. The Continuous Monitoring process consists of the following three main activities: Configuration management and control Security control monitoring and impact analyses of changes to the information system Status reporting and documentation The objective of these tasks is to observe and evaluate the information system security controls during the system life cycle. These tasks determine whether the changes that have occurred will negatively impact the system security. Answer: A and C are incorrect. Security accreditation decision and security accreditation documentation are the two tasks of the security accreditation phase.

The business continuity plan development refers to the utilization of the information collected in the Business Impact Analysis (BIA) for the creation of the recovery strategy plan to support the critical business functions. The information gathered from the BIA is mapped out to make a strategy for creating a continuity plan. The business continuity plan development process includes the areas of plan implementation, plan testing, and ongoing plan maintenance. This phase also consists of defining and documenting the continuity strategy. Answer: C is incorrect. The scope and plan initiation process in BCP symbolizes the beginning of the BCP process. It emphasizes on creating the scope and the additional elements required to define the parameters of the plan. The scope and plan initiation phase embodies a check of the company ' s operations and support services. The scope activities include creating a detailed account of the work required, listing the resources to be used, and defining the management practices to be employed. Answer: B is incorrect. The business impact assessment is a method used to facilitate business units to understand the impact of a disruptive event. This phase includes the execution of a vulnerability assessment. This process makes out the mission-critical areas and business processes that are important for the survival of business. It is similar to the risk assessment process. The function of a business impact assessment process is to create a document, which is used to help and understand what impact a disruptive event would have on the business. Answer: D is incorrect. The plan approval and implementation process involves creating enterprise-wide awareness of the plan, getting the final senior management signoff, and implementing a maintenance procedure for updating the plan as required.

Security Test and Evaluation (ST & E) occurs in Phase 3 of the DITSCAP C & A process. Answer: D is incorrect. The Phase 1 of DITSCAP C & A is known as Definition Phase. The goal of this phase is to define the C & A level of effort, identify the main C & A roles and responsibilities, and create an agreement on the method for implementing the security requirements. The Phase 1 starts with the input of the mission need. This phase comprises three process activities: Document mission need Registration Negotiation Answer: A is incorrect. The Phase 2 of DITSCAP C & A is known as Verification. The goal of this phase is to obtain a fully integrated system for certification testing and accreditation. This phase takes place between the signing of the initial version of the SSAA and the formal accreditation of the system. This phase verifies security requirements during system development. The process activities of this phase are as follows: Configuring refinement of the SSAA System development Certification analysis Assessment of the Analysis Results Answer: B is incorrect. The Phase 4 of DITSCAP C & A is known as Post Accreditation. This phase starts after the system has been accredited in the Phase 3. The goal of this phase is to continue to operate and manage the system and to ensure that it will maintain an acceptable level of residual risk. The process activities of this phase are as follows: System operations Security operations Maintenance of the SSAA Change management Compliance validation

The various security controls in the SDLC design phase are as follows:

Misuse Case Modeling: It is important that the inverse of the misuse cases be modeled to understand and address the security aspects of the software. The requirements traceability matrix can be used to track the misuse cases to the functionality of the software. Security Design and Architecture Review: This control can be introduced when the teams are engaged in the " functional " design and architecture review of the software. Threat and Risk Modeling: Threat modeling determines the attack surface of the software by examining its functionality for trust boundaries, data flow, entry points, and exit points. Risk modeling is performed by ranking the threats as they pertain to the users organization ' s business objectives, compliance and regulatory requirements and security exposures. Security Requirements and Test Cases Generation: All the above three security controls, i.e., Misuse Case Modeling, Security Design and Architecture Review, and Threat and Risk Modeling are used to produce the security requirements.