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Which of the following types of activities can be audited for security? Each correct answer represents a complete solution. Choose three.
Correct Answer: A,C,D
Explanation/Reference: Explanation: The following types of activities can be audited: Network logons and logoffs File access Printer access Remote access service Application usage Network services Auditing is used to track user accounts for file and object access, logon attempts, system shutdown, etc. This enhances the security of the network. Before enabling security auditing, the type of event to be audited should be specified in the audit policy. Auditing is an essential component to maintain the security of deployed systems. Security auditing depends on the criticality of the environment and on the company's security policy. The security system should be reviewed periodically. Answer: B is incorrect. Data downloading from the Internet cannot be audited.
Question 142
Which of the following scanning techniques helps to ensure that the standard software configuration is currently with the latest security patches and software, and helps to locate uncontrolled or unauthorized software?
Correct Answer: D
Explanation/Reference: Explanation: Workstation scanning provides help to ensure that the standard software configuration exists with the most recent security patches and software. It helps to locate uncontrolled or unauthorized software. A full workstation vulnerability scan of the standard corporate desktop configuration must be implemented on a regularly basis. AnswerB is incorrect. The discovery scanning technique is used to gather adequate information regarding each network device to identify what type of device it is, its operating system, and if it is running any externally vulnerable services, like Web services, FTP, or email. AnswerC is incorrect. A full server vulnerability scan helps to determine if the server OS has been configured to the corporate standards and identify if applications have been updated with the latest security patches and software versions. AnswerA is incorrect. Port scanning technique describes the process of sending a data packet to a port to gather information about the state of the port.
Question 143
A number of security patterns for Web applications under the DARPA contract have been developed by Kienzle, Elder, Tyree, and Edwards-Hewitt. Which of the following patterns are applicable to aspects of authentication in Web applications?b Each correct answer represents a complete solution. Choose all that apply.
Correct Answer: A,D,E,F
Explanation/Reference: Explanation: The various patterns applicable to aspects of authentication in the Web applications are as follows: Account lockout: It implements a limit on the incorrect password attempts to protect an account from automated password-guessing attacks. Authenticated session: It allows a user to access more than one access-restricted Web page without re-authenticating every page. It also integrates user authentication into the basic session model. Password authentication: It provides protection against weak passwords, automated password-guessing attacks, and mishandling of passwords. Password propagation: It offers a choice by requiring that a user's authentication credentials be verified by the database before providing access to that user's data. AnswerB and C are incorrect. Secure assertion and partitioned application patterns are applicable to software assurance in general.
Question 144
Which of the following refers to a process that is used for implementing information security?
Correct Answer: C
Explanation/Reference: Explanation: Certification and Accreditation (C&A or CnA) is a process for implementing information security. It is a systematic procedure for evaluating, describing, testing, and authorizing systems prior to or after a system is in operation. The C&A process is used extensively in the U.S. Federal Government. Some C&A processes include FISMA, NIACAP, DIACAP, and DCID 6/3. Certification is a comprehensive assessment of the management, operational, and technical security controls in an information system, made in support of security accreditation, to determine the extent to which the controls are implemented correctly, operating as intended, and producing the desired outcome with respect to meeting the security requirements for the system. Accreditation is the official management decision given by a senior agency official to authorize operation of an information system and to explicitly accept the risk to agency operations (including mission, functions, image, or reputation), agency assets, or individuals, based on the implementation of an agreed-upon set of security controls. AnswerD is incorrect. Information Assurance (IA) is the practice of managing risks related to the use, processing, storage, and transmission of information or data and the systems and processes used for those purposes. While focused dominantly on information in digital form, the full range of IA encompasses not only digital but also analog or physical form. Information assurance as a field has grown from the practice of information security, which in turn grew out of practices and procedures of computer security. AnswerA is incorrect. The classic information security model is used in the practice of Information Assurance (IA) to define assurance requirements. The classic information security model, also called the CIA Triad, addresses three attributes of information and information systems, confidentiality, integrity, and availability. This C-I-A model is extremely useful for teaching introductory and basic concepts of information security and assurance; the initials are an easy mnemonic to remember, and when properly understood, can prompt systems designers and users to address the most pressing aspects of assurance. AnswerB is incorrect. The Five Pillars model is used in the practice of Information Assurance (IA) to define assurance requirements. It was promulgated by the U.S. Department of Defense (DoD) in a variety of publications, beginning with the National Information Assurance Glossary, Committee on National Security Systems Instruction CNSSI-4009. Here is the definition from that publication: "Measures that protect and defend information and information systems by ensuring their availability, integrity, authentication, confidentiality, and non-repudiation. These measures include providing for restoration of information systems by incorporating protection, detection, and reaction capabilities." The Five Pillars model is sometimes criticized because authentication and non-repudiation are not attributes of information or systems; rather, they are procedures or methods useful to assure the integrity and authenticity of information, and to protect the confidentiality of the same.
Question 145
Which of the following plans is a comprehensive statement of consistent actions to be taken before, during, and after a disruptive event that causes a significant loss of information systems resources?
Correct Answer: C
A disaster recovery plan is a complete statement of reliable actions to be taken before, during, and after a disruptive event that causes a considerable loss of information systems resources. The chief objective of a disaster recovery plan is to provide an organized way to make decisions if a disruptive event occurs. Disaster recovery planning is a subset of a larger process known as business continuity planning and should include planning for resumption of applications, data, hardware, communications (such as networking), and other IT infrastructure. A business continuity plan (BCP) includes planning for non-IT related aspects such as key personnel, facilities, crisis communication, and reputation protection, and should refer to the disaster recovery plan (DRP) for IT-related infrastructure recovery/continuity. Answer D is incorrect. Business Continuity Planning (BCP) is the creation and validation of a practiced logistical plan for how an organization will recover and restore partially or completely interrupted critical (urgent) functions within a predetermined time after a disaster or extended disruption. The logistical plan is called a business continuity plan. Answer B is incorrect. The Continuity Of Operation Plan (COOP) refers to the preparations and institutions maintained by the United States government, providing survival of federal government operations in the case of catastrophic events. It provides procedures and capabilities to sustain an organization's essential. COOP is the procedure documented to ensure persistent critical operations throughout any period where normal operations are unattainable. Answer A is incorrect. A contingency plan is a plan devised for a specific situation when things could go wrong. Contingency plans are often devised by governments or businesses who want to be prepared for anything that could happen. Contingency plans include specific strategies and actions to deal with specific variances to assumptions resulting in a particular problem, emergency, or state of affairs. They also include a monitoring process and "triggers" for initiating planned actions. They are required to help governments, businesses, or individuals to recover from serious incidents in the minimum time with minimum cost and disruption.
