CSSLP Certified Secure Software Lifecycle Professional Questions and Answers

The Biba and Clark-Wilson access control models are used in the commercial sector. The Biba model is a formal state transition system of computer security policy that describes a set of access control rules designed to ensure data integrity. Data and subjects are grouped into ordered levels of integrity. The model is designed so that subjects may not corrupt data in a level ranked higher than the subject, or be corrupted by data from a lower level than the subject. The Clark-Wilson security model provides a foundation for specifying and analyzing an integrity policy for a computing system. Answer: D is incorrect. The Bell-LaPadula access control model is mainly used in military systems. Answer: B is incorrect. There is no such access control model as Clark-Biba.

The Department of Defense Information Assurance Certification and Accreditation Process (DIACAP) is a process defined by the United States Department of Defense (DoD) for managing risk.

The subordinate tasks of the Initiate and Plan IA C&A phase are as follows: Register system with DoD Component IA Program. Assign IA controls. Assemble DIACAP team. Develop DIACAP strategy. Initiate IA implementation plan. Answer: F is incorrect. Validation activities are conducted in the second phase of the DIACAP process, i.e., Implement and Validate Assigned IA Controls.

The data owner is responsible for ensuring that the appropriate security controls are in place, for assigning the initial classification to the data to be protected, for approving access requests from other parts of the organization, and for periodically reviewing the data classifications and access rights. Data owners are primarily responsible for determining the data's sensitivity or classification levels, whereas the data custodian has the responsibility for backup, retention, and recovery of data. The data owner delegates these responsibilities to the custodian. Answer: B, A, and C are incorrect. These are not the valid answers.

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.

The confidentiality service of a cryptographic system ensures that information will not be disclosed to any unauthorized person on a local network.

An information system auditor is an individual who inspects whether the security policies, standards, guidelines, and procedures are efficiently performed in accordance with the company's stated security objectives. He is responsible for reporting the senior management about the value of security controls by performing regular and independent audits. Answer: B is incorrect. A data owner determines the sensitivity or classification levels of data. Answer: A is incorrect. An informational systems security professional is an individual who designs, implements, manages, and reviews the security policies, standards, guidelines, and procedures of the organization. He is responsible to implement and maintain security by the senior-level management. Answer: C is incorrect. A senior management assigns overall responsibilities to other individuals.

A hot site is a duplicate of the original site of the organization, with full computer systems as well as near-complete backups of user data. It provides the backup facility, which is maintained in a constant order, with a full complement of servers, workstations, and communication links ready to assume the primary operations responsibility.

A hot site is a backup site in case disaster has taken place in a data center. A hot site is located off site and provides the best protection. It is an exact replica of the current data center. In case a disaster struck to the data center, administrators just need to take the backup of recent data in hot site and the data center is back online in a very short time. It is very expensive to create and maintain the hot site. There are lots of third party companies that provide disaster recovery solutions by maintaining hot sites at their end. Answer: A is incorrect. A cold site is a backup site in case disaster has taken place in a data center. This is the least expensive disaster recovery solution, usually having only a single room with no equipment. All equipment is brought to the site after the disaster. It can be on site or off site. Answer: D is incorrect. Mobile sites are self-reliant, portable shells custom-fitted with definite telecommunications and IT equipment essential to meet system requirements. These are presented for lease through commercial vendors. Answer: C is incorrect. A warm site is, quite logically, a compromise between hot and cold sites. Warm sites will have hardware and connectivity already established, though on a smaller scale than the original production site or even a hot site. These sites will have backups on hand, but they may not be complete and may be between several days and a week old. An example would be backup tapes sent to the warm site by courier.

The various methods of the HttpServletRequest interface are as follows: getRemoteUser(): It returns the user name that is used for the client authentication. The value of the getRemoteUser() method returns null if no user is authenticated. isUserInRole(): It determines whether the remote user is granted a specified user role. The value of the isUserInRole() method returns true if the remote user is granted the specified user role; otherwise it returns false. getUserPrincipal(): It determines the principle name of the current user and returns the java.security.Principal object. The java.security.Principal object contains the remote user name. The value of the getUserPrincipal() method returns null if no user is authenticated. Answer: A is incorrect. It is not defined in the

HttpServletRequest interface. The getCallerIdentity() method is used to obtain the java.security.Identity of the caller.

Use a consistent coding style is one of the principles and practices that contribute to defensive coding. This principle defines the appearance of code listing so that a code reviewer and maintainer who have not written that code can easily understand it. For this purpose, all programmers of a team must follow the same guidelines. Answer: D is incorrect. Keep code simple and small defines that it is easy to verify the software security when a programmer uses small and simple code base. Answer: A is incorrect. Make code forward and backward traceable defines that traceability is necessary in order to validate requirements, prevent defects, and find and solve inconsistencies among all objects generated in the SDLC phases. Answer: B is incorrect. Review code during and after coding defines that code must be examined in order to identify coding errors in modules.

The service-oriented logical design modeling establishes service relationships and message exchange paths. It also addresses service visibility and crafts service logical compositions.

A trademark is a name, symbol, or slogan with which a product is identified. Its uniqueness makes the product noticeable among the same type of products. For example, Pentium and Athlon are brand names of the CPUs that are manufactured by Intel and AMD, respectively. The trademark law protects a company's trademark by making it illegal for other companies to use it without taking prior permission of the trademark owner. A trademark is registered so that others cannot use identical or similar marks. Answer: C is incorrect. A trade secret is a formula, practice, process, design, instrument, pattern, or compilation of information which is not generally known. It helps a business to obtain an economic advantage over its competitors or customers. In some jurisdictions, such secrets are referred to as confidential information or classified information. Answer: B is incorrect. A copyright is a form of intellectual property, which secures to its holder the exclusive right to produce copies of his or her works of original expression, such as a literary work, movie, musical work or sound recording, painting, photograph, computer program, or industrial design, for a defined, yet extendable, period of time. It does not cover ideas or facts. Copyright laws protect intellectual property from misuse by other individuals. Answer: D is incorrect. A patent is a set of exclusive rights granted to anyone who invents any new and useful machine, process, composition of matter, etc. A patent enables the inventor to legally enforce his right to exclude others from using his invention.

Procedural controls include incident response processes, management oversight, security awareness, and training. Answer: B is incorrect. Physical controls include fences, doors, locks, and fire extinguishers. Answer: D is incorrect. Technical controls include user authentication (login) and logical access controls, antivirus software, and firewalls. Answer: A is incorrect. The legal and regulatory, or compliance controls, include privacy laws, policies, and clauses.

A code review is a systematic examination of computer source code, which searches and resolves issues occurred in the initial development phase. It increases the software security by removing common vulnerabilities, such as format string exploits, race conditions, memory leaks, and buffer overflows. A code review is performed in the following forms: Pair programming Informal walkthrough Formal inspection Answer: C is incorrect. A peer review is an examination process in which author and one or more colleagues examine a work product, such as document, code, etc., and evaluate technical content and quality. According to the Capability Maturity Model, peer review offers a systematic engineering practice in order to detect and resolve issues occurring in the software artifacts, and stops the leakage into field operations. Answer: A is incorrect. Management review is a management study into a project's status and allocation of resources. Answer: D is incorrect. In software audit review one or more auditors, who are not members of the software development organization, perform an independent examination of a software product, software process, or a set of software processes for assessing compliance with specifications, standards, contractual agreements, or other specifications.

Process redundancy permits software to run simultaneously on multiple geographically distributed locations, with voting on results. It prevents attacks in which an attacker can get physical control of a machine, insert unauthorized software, and alter data.

The various activities performed in the planning phase of the Software Assurance Acquisition process are as follows: Determine software product or service requirements. Identify associated risks. Develop software requirements. Create acquisition strategy. Develop evaluation criteria and evaluation plan. Define development and use of SwA due diligence questionnaires. Answer: B is incorrect. This activity is performed in the monitoring and acceptance phase of the Software Assurance acquisition process.

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.

Following are the basic categories of signatures: Informational (benign): These types of signatures trigger on normal network activity. For example: ICMP echo requests The opening or closing of TCP or UDP connections Reconnaissance: These types of signatures trigger on attacks that uncover resources and hosts that are reachable, as well as any possible vulnerabilities that they might contain. For example: Reconnaissance attacks include ping sweeps DNS queries Port scanning Access: These types of signatures trigger on access attacks, which include unauthorized access, unauthorized escalation of privileges, and access to protected or sensitive data. For example:

Back Orifice A Unicode attack against the Microsoft IIS NetBus DoS: These types of signatures trigger on attacks that attempt to reduce the level of a resource or system, or to cause it to crash. For example: TCP SYN floods The Ping of Death Smurf Fraggle Trinoo Tribe Flood Network

General Principle 1- Minimize the number of high-consequence targets includes the following principles and practices:

Principle of least privilege Principle of separation of privileges, duties, and roles Principle of separation of domains Answer: B is incorrect. Assume environment data is not trustworthy principle is included in the General Principle 2. Answer: C is incorrect. Simplify the design principle is included in the General Principle 3.

Non repudiation refers to mechanisms that prevent a party from falsely denying involvement in some data transaction.

The business continuity plan is designed to protect critical business processes from natural or man-made failures or disasters and the resultant loss of capital due to the unavailability of normal business processes. 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: C is incorrect. The crisis communication plan can be broadly defined as the plan for the exchange of information before, during, or after a crisis event. It is considered as a sub-specialty of the public relations profession that is designed to protect and defend an individual, company, or organization facing a public challenge to its reputation. The aim of crisis communication plan is to assist organizations to achieve continuity of critical business processes and information flows under crisis, disaster or event driven circumstances. 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. Answer: D is incorrect. A disaster recovery plan should contain data, hardware, and software that can be critical for a business. It should also include the plan for sudden loss such as hard disc crash. The business should use backup and data recovery utilities to limit the loss of data.

The definition phase of the DITSCAP/NIACAP model takes place at the beginning of the project, or at the initial C&A effort of a legacy system. 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.

When an attacker successfully inserts an intermediary software or program between two communicating hosts, it is known as man-in-the-middle attack.

The Project Risk Management knowledge area focuses on the following processes: Risk Management Planning Risk Identification Qualitative Risk Analysis Quantitative Risk Analysis Risk Response Planning Risk Monitoring and Control Answer: D is incorrect. There is no such process in the Project Risk Management knowledge area.

In private cloud, the cloud infrastructure is operated exclusively for an organization. The private cloud infrastructure is administered by the organization or a third party, and exists on premise and off premise.

Preventive transformation increases the difficulty for a de-obfuscation tool so that it cannot extract the true application from the obfuscated version.

The Annualized Rate of Occurrence (ARO) is a number that represents the estimated frequency at which a threat is expected to occur. It is calculated based upon the probability of the event occurring and the number of employees that could make that event occur. Answer: D is incorrect. The Exposure Factor (EF) represents the % of assets loss caused by a threat. The EF is required to calculate the Single Loss Expectancy (SLE). Answer: A is incorrect. The Single Loss Expectancy (SLE) is the value in dollars that is assigned to a single event. SLE = Asset Value ($) X Exposure Factor (EF) Answer: C is incorrect. Safeguard acts as a countermeasure for reducing the risk associated with a specific threat or a group of threats.

Exception handling is a computer hardware mechanism or programming language construct that handles the occurrence of events. These events occur during the software execution process and interrupt the instruction flow. Exception handling performs the specific activities for managing the exceptional events.

Snort is an open source network intrusion prevention and detection system that operates as a network sniffer. It logs activities of the network that is matched with the predefined signatures. Signatures can be designed for a wide range of traffic, including Internet Protocol (IP), Transmission Control Protocol (TCP), User Datagram Protocol (UDP), and Internet Control Message Protocol (ICMP). The three main modes in which Snort can be configured are as follows:

Sniffer mode: It reads the packets of the network and displays them in a continuous stream on the console. Packet logger mode: It logs the packets to the disk. Network intrusion detection mode: It is the most complex and configurable configuration, allowing Snort to analyze network traffic for matches against a user-defined rule set. Answer: B is incorrect. Macof is a tool of the dsniff tool set and used to flood the local network with random MAC addresses. It causes some switches to fail open in repeating mode, and facilitates sniffing. Answer: C is incorrect. Sourcefire is the company that owns and maintains Snort. Answer: A is incorrect. NETSH is not a network intrusion detection system. NETSH is a command line tool to configure TCP/IP settings such as the IP address, Subnet Mask, Default Gateway, DNS, WINS addresses, etc.

The Department of Defense Information Assurance Certification and Accreditation Process (DIACAP) is a process defined by the United States Department of Defense (DoD) for managing risk. The Certification Determination and Accreditation phase is the third phase in the DIACAP process. Its subordinate tasks are as follows: Analyze residual risk. Issue certification determination. Make accreditation decision. Answer: A is incorrect. Phase 1 is known as Initiate and Plan IA C&A. Answer: C is incorrect. Phase 2 is used to implement and validate assigned IA controls. Answer: E is incorrect. Phase 3 is used to make certification determination and accreditation decisions. Answer: B is incorrect. Phase 5 is known as decommission system and is used to conduct activities related to the disposition of the system data and objects.

Software Assurance Acquisition process defines the level of confidence that software is free from vulnerabilities. It is designed into the software or accidentally inserted at anytime during its lifecycle, and the software works in a planned manner. According to the U.S. Department of Defense and Department of Homeland Security Acquisition and Outsourcing Working Group, the Software Assurance Acquisition process contains the following phases: 1.Planning 2.Contracting 3.Monitoring and acceptance 4.Follow-on

The SCM process defines the need to trace changes, and the ability to verify that the final delivered software has all of the planned enhancements that are supposed to be included in the release. It identifies four procedures that must be defined for each software project to ensure that a sound SCM process is implemented. They are as follows: 1.Configuration identification: Configuration identification is the process of identifying the attributes that define every aspect of a configuration item. A configuration item is a product (hardware and/or software) that has an end-user purpose. These attributes are recorded in configuration documentation and baselined. 2.Configuration change control: Configuration change control is a set of processes and approval stages required to change a configuration item's attributes and to re-baseline them. 3.Configuration status accounting: Configuration status accounting is the ability to record and report on the configuration baselines associated with each configuration item at any moment of time. 4.Configuration audits: Configuration audits are broken into functional and physical configuration audits. They occur either at delivery or at the moment of effecting the change. A functional configuration audit ensures that functional and performance attributes of a configuration item are achieved, while a physical configuration audit ensures that a configuration item is installed in accordance with the requirements of its detailed design documentation.

ISO/IEC 27002 is an information security standard published by the International Organization for Standardization (ISO) and by the International Electrotechnical Commission (IEC) as ISO/IEC 17799:2005. This standard contains the following twelve main sections: 1.Risk assessment: It refers to assessment of risk. 2.Security policy: It deals with the security management. 3.Organization of information security: It deals with governance of information security. 4.Asset management: It refers to inventory and classification of information assets. 5.Human resources security: It deals with security aspects for employees joining, moving and leaving an organization. 6.Physical and environmental security: It is related to protection of the computer facilities. 7.Communications and operations management: It is the management of technical security controls in systems and networks. 8.Access control: It deals with the restriction of access rights to networks, systems, applications, functions and data. 9.Information systems acquisition, development and maintenance: It refers to build security into applications. 10.Information security incident management: It refers to anticipate and respond appropriately to information security breaches. 11.Business continuity management: It deals with protecting, maintaining and recovering business-critical processes and systems.

12.Compliance: It is used for ensuring conformance with information security policies, standards, laws and regulations. Answer: C is incorrect. Financial assessment does not come under the ISO/IEC 27002 standard.

BCP is a strategy to minimize the consequence of the instability and to allow for the continuation of business processes. The goal of BCP is to minimize the effects of a disruptive event on a company, and is formed to avoid interruptions to normal business activity. 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. 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. Answer: C is incorrect. 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: A 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.

The Single Loss Expectancy (SLE) of this project will be $68,250. Single Loss Expectancy is a term related to Risk Management and Risk Assessment. It can be defined as the monetary value expected from the occurrence of a risk on an asset. It is mathematically expressed as follows: Single Loss Expectancy (SLE) = Asset Value (AV) * Exposure Factor (EF) where the Exposure Factor is represented in the impact of the risk over the asset, or percentage of asset lost. As an example, if the Asset Value is reduced two thirds, the exposure factor value is .66. If the asset is completely lost, the Exposure Factor is 1.0. The result is a monetary value in the same unit as the Single Loss Expectancy is expressed. Here, it is as follows:

SLE = Asset Value * Exposure Factor

= 195,000 * 0.35

= $68,250

Answer: B, C, and D are incorrect. These are not valid SLE's for this project.

The minimum security requirements cover seventeen security related areas to protect the confidentiality, integrity, and availability of federal information systems and information processed by those systems. They are as follows: Access control Awareness and training Audit and accountability Certification, accreditation, and security assessment Configuration management Contingency planning Identification and authentication Incident response Maintenance Media protection Physical and environmental protection Planning Personnel security Risk assessment Systems and services acquisition System and communications protection System and information integrity

Assessment, monitoring, and assurance determines the necessary compliance that are offered by risk management practices and assessment of risk levels.

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.

In private cloud, the cloud infrastructure is operated exclusively for an organization. The private cloud infrastructure is administered by the organization or a third party, and exists on premise and off premise. In community cloud, the cloud infrastructure is shared by a number of organizations and supports a particular community. The community cloud infrastructure is administered by the organizations or a third party and exists on premise or off premise. Answer: B is incorrect. In public cloud, the cloud infrastructure is administered by an organization that sells cloud services. Answer: C is incorrect. In hybrid cloud, the cloud infrastructure is administered by both, i.e., an organization and a third party.

NIST has developed a suite of documents for conducting Certification & Accreditation (C&A). These documents are as follows: NIST Special Publication 800-37: This document is a guide for the security certification and accreditation of Federal Information Systems. NIST Special Publication 800-53: This document provides a guideline for security controls for Federal Information Systems. NIST Special Publication 800-53A. This document consists of techniques and procedures for verifying the effectiveness of security controls in Federal Information System. NIST Special Publication 800-59: This document is a guideline for identifying an information system as a National Security System. NIST Special Publication 800-60: This document is a guide for mapping types of information and information systems to security objectives and risk levels. Answer: C is incorrect. There is no such type of NIST document.

NIST has developed a suite of documents for conducting Certification & Accreditation (C&A). These documents are as follows: NIST Special Publication 800-37: This document is a guide for the security certification and accreditation of Federal Information Systems. NIST Special Publication 800-53: This document provides a guideline for security controls for Federal Information Systems. NIST Special Publication 800-53A. This document consists of techniques and procedures for verifying the effectiveness of security controls in Federal Information System. NIST Special Publication 800-59: This document is a guideline for identifying an information system as a National Security System. NIST Special Publication 800-60: This document is a guide for mapping types of information and information systems to security objectives and risk levels.

The different categories of penetration testing are as follows: Open-box: In this category of penetration testing, testers have access to internal system code. This mode is basically suited for Unix or Linux. Closed-box: In this category of penetration testing, testers do not have access to closed systems. This method is good for closed systems. Zero-knowledge test: In this category of penetration testing, testers have to acquire information from scratch and they are not supplied with information concerning the IT system. Partial-knowledge test: In this category of penetration testing, testers have knowledge that may be applicable to a specific type of attack and associated vulnerabilities. Full-knowledge test: In this category of penetration testing, testers have massive knowledge concerning the information system to be evaluated. Answer: D is incorrect. There is no such category of penetration testing.

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: E is incorrect. Registration is a Phase 1 activity.

Programmatic security applies the internal security policies of the software applications when they are deployed. In this type of security, the code of the software application controls the security behavior, and authentication decisions are made based on the business logic, such as the user role or the task performed by the user in a specific security context.

The Biba model is a formal state transition system of computer security policy that describes a set of access control rules designed to ensure data integrity. Data and subjects are grouped into ordered levels of integrity. The model is designed so that subjects may not corrupt data in a level ranked higher than the subject, or be corrupted by data from a lower level than the subject.

In order to resolve the issue, you should use TLS (Transport Layer Security). Transport Layer Security (TLS) is a cryptographic protocol that provides security and data integrity for communications over networks such as the Internet. TLS and SSL encrypt the segments of network connections at the Transport Layer end-to-end. Several versions of the protocols are in wide-spread use in applications like web browsing, electronic mail, Internet faxing, instant messaging, and voice-over-IP (VoIP). The TLS protocol, an application layer protocol, allows client/server applications to communicate across a network in a way designed to prevent eavesdropping, tampering, and message forgery. TLS provides endpoint authentication and communications confidentiality over the Internet using cryptography. Answer: C is incorrect. Internet Protocol Security (IPSec) is a method of securing data. It secures traffic by using encryption and digital signing. It enhances the security of data as if an IPSec packet is captured, its contents cannot be read. IPSec also provides sender verification that ensures the certainty of the datagram's origin to the receiver. Answer: D is incorrect. Hypertext Transfer Protocol Secure (HTTPS) protocol is a protocol used in the Universal Resource Locater (URL) address line to connect to a secure site. If a site has been made secure by using the Secure Sockets Layer (SSL) then HTTPS, instead of HTTP protocol, should be used as a protocol type in the URL. Answer: A is incorrect. The SCP (secure copy) protocol is a network protocol that supports file transfers. The SCP protocol, which runs on port 22, is based on the BSD RCP protocol which is tunneled through the Secure Shell (SSH) protocol to provide encryption and authentication. SCP might not even be considered a protocol itself, but merely a combination of RCP and SSH. The RCP protocol performs the file transfer and the SSH protocol performs authentication and encryption. SCP protects the authenticity and confidentiality of the data in transit. It hinders the ability for packet sniffers to extract usable information from the data packets.

A full-interruption test includes the operations that shut down at the primary site and are shifted to the recovery site according to the disaster recovery plan. It operates just like a parallel test. The full-interruption test is very expensive and difficult to arrange. Sometimes, it causes a major disruption of operations if the test fails. Answer: A is incorrect. The structured walk-through test is also known as the table-top exercise. In structured walk-through test, the team members walkthrough the plan to identify and correct weaknesses and how they will respond to the emergency scenarios by stepping in the course of the plan. It is the most effective and competent way to identify the areas of overlap in the plan before conducting more challenging training exercises. Answer: C is incorrect. A parallel test includes the next level in the testing procedure, and relocates the employees to an alternate recovery site and implements site activation procedures. These employees present with their disaster recovery responsibilities as they would for an actual disaster. The disaster recovery sites have full responsibilities to conduct the day-to-day organization's business. Answer: D is incorrect. A simulation test is a method used to test the disaster recovery plans. It operates just like a structured walk- through test. In the simulation test, the members of a disaster recovery team present with a disaster scenario and then, discuss on appropriate responses. These suggested responses are measured and some of them are taken by the team. The range of the simulation test should be defined carefully for avoiding excessive disruption of normal business activities.

The following are the effects of loss of confidentiality, integrity, or availability in a high level potential impact: It might cause a severe degradation in or loss of mission capability to an extent. It might result in a major damage to organizational assets. It might result in a major financial loss. It might result in severe harms such as serious life threatening injuries or loss of life.

According to the NIST SAMATE, dynamic analysis tools operate by generating runtime vulnerability scenario using the following functions: Resource fault injection Network fault injection System fault injection User interface fault injection Design attack Implementation attack File corruption Answer: B is incorrect. This function is summarized for static analysis tools.

Removing the IPP printing capability from a server is a good countermeasure against an IIS buffer overflow attack. A Network Administrator should take the following steps to prevent a Web server from IIS buffer overflow attacks: Conduct frequent scans for server vulnerabilities. Install the upgrades of Microsoft service packs.

Implement effective firewalls. Apply URLScan and IISLockdown utilities. Remove the IPP printing capability. Answer: D is incorrect. The following are the DNS zone transfer countermeasures: Do not allow DNS zone transfer using the DNS property sheet: a.Open DNS. b.Right-click a DNS zone and click Properties. c.On the Zone Transfer tab, clear the Allow zone transfers check box. Configure the master DNS server to allow zone transfers only from secondary DNS servers: a.Open DNS. b.Right-click a DNS zone and click Properties. c.On the zone transfer tab, select the Allow zone transfers check box, and then do one of the following: To allow zone transfers only to the DNS servers listed on the name servers tab, click on the Only to the servers listed on the Name Server tab. To allow zone transfers only to specific DNS servers, click Only to the following servers, and add the IP address of one or more servers. Deny all unauthorized inbound connections to TCP port 53. Implement DNS keys and encrypted DNS payloads. Answer: A is incorrect. The following are the countermeasures against SNMP enumeration: 1.Removing the SNMP agent or disabling the SNMP service 2.Changing the default PUBLIC community name when 'shutting off SNMP' is not an option 3.Implementing the Group Policy security option called Additional restrictions for anonymous connections 4.Restricting access to NULL session pipes and NULL session shares 5.Upgrading SNMP Version 1 with the latest version 6.Implementing Access control list filtering to allow only access to the read-write community from approved stations or subnets Answer: C is incorrect. NetBIOS NULL session vulnerabilities are hard to prevent, especially if NetBIOS is needed as part of the infrastructure. One or more of the following steps can be taken to limit NetBIOS NULL session vulnerabilities: 1.Null sessions require access to the TCP 139 or TCP 445 port, which can be disabled by a Network Administrator. 2.A Network Administrator can also disable SMB services entirely on individual hosts by unbinding WINS Client TCP/IP from the interface. 3.A Network Administrator can also restrict the anonymous user by editing the registry values: a.Open regedit32, and go to HKLM\SYSTEM\CurrentControlSet\LSA. b.Choose edit > add value. Value name: RestrictAnonymous Data Type: REG_WORD Value: 2