ISC CSSLP Exam Dumps – PDF Questions and Testing Engine [Q23-Q37]

is incorrect. The risk analysis plan does define how risks will be analyzed.

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. Answer D 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. Answer A 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. Answer B 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.

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 A is incorrect. In full-scale exercise, the critical systems run at an alternate site. Answer B is incorrect. The emergency management group and response teams actually perform their emergency response functions by walking through the test, without actually initiating recovery procedures. But it is not much cost effective. Answer D is incorrect. It is a test performed when personnel walks through the evacuation route to a designated area where procedures for accounting for the personnel are tested.

The information system level is the tier 3. It addresses risks from an information system perspective, and is guided by the risk decisions at tiers 1 and 2. Risk decisions at tiers 1 and 2 impact the ultimate selection and deployment of requisite safeguards. This also has an impact on the countermeasures at the information system level. The RMF primarily operates at tier3 but it can also have interactions at tiers 1 and 2. Answer A is incorrect. It is an invalid Tier description. Answer D is incorrect. The Organization Level is the Tier 1, and it addresses risks from an organizational perspective. Answer C is incorrect. The mission and business process level is the Tier 2, and it addresses risks from the mission and business process perspective.

Explanation/Reference:
Explanation: Senior management provides management, operational and technical controls to satisfy security requirements. The governance roles and responsibilities are mentioned below in the table:

Confidentiality is a term that refers to the protection of data against unauthorized access. Administrators can provide confidentiality by encrypting data. Symmetric encryption is a relatively fast encryption method. Hence, this method of encryption is best suited for encrypting large amounts of data such as files on a computer. Answer A is incorrect. Integrity ensures that no intentional or unintentional unauthorized modification is made to data. Answer C is incorrect. 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 auditing, the type of event to be audited should be specified in the Audit Policy in User Manager for Domains.

The Phase 3 of DITSCAP C&A is known as Validation. The goal of Phase 3 is to validate that the preceding work has produced an IS that operates in a specified computing environment. The process activities of this phase are as follows: Continue to review and refine the SSAA Perform certification evaluation of the integrated system Develop recommendation to the DAA Certification and accreditation decision Answer D is incorrect. System development is a Phase 2 activity.

2Mosaic is a tool used for watermark breaking. It is an attack against a digital watermarking system. In this type of attack, an image is chopped into small pieces and then placed together. When this image is embedded into a web page, the web browser renders the small pieces into one image. This image looks like a real image with no watermark in it. This attack is successful, as it is impossible to read watermark in very small pieces. Answer D is incorrect. Gifshuffle is used to hide message or information inside GIF images. It is done by shuffling the colormap. This tool also provides compression and encryption. Answer B and A are incorrect. Active Attacks and Steg-Only Attacks are used to attack Steganography.

Audit trail or audit log comes under detective controls. Detective controls are the audit controls that are not needed to be restricted. Any control that performs a monitoring activity can likely be defined as a Detective Control. For example, it is possible that mistakes, either intentional or unintentional, can be made. Therefore, an additional Protective control is that these companies must have their financial results audited by an independent Certified Public Accountant. The role of this accountant is to act as an auditor. In fact, any auditor acts as a Detective control. If the organization in question has not properly followed the rules, a diligent auditor should be able to detect the deficiency which indicates that some control somewhere has failed. Answer A is incorrect. Reactive or corrective controls typically work in response to a detective control, responding in such a way as to alert or otherwise correct an unacceptable condition. Using the example of account rules, either the internal Audit Committee or the SEC itself, based on the report generated by the external auditor, will take some corrective action. In this way, they are acting as a Corrective or Reactive control. Answer C and D are incorrect. Protective or preventative controls serve to proactively define and possibly enforce acceptable behaviors. As an example, a set of common accounting rules are defined and must be followed by any publicly traded company. Each quarter, any particular company must publicly state its current financial standing and accounting as reflected by an application of these rules. These accounting rules and the SEC requirements serve as protective or preventative controls.

Declarative security applies the security policies on the software applications at their runtime. In this type of security, the security decisions are based on explicit statements that confine security behavior. Declarative security applies security permissions that are required for the software application to access the local resources and provides role-based access control to an individual software component and software application. It is employed in a layer that relies outside of the software code or uses attributes of the code. Answer C is incorrect. In declarative security, authentication decisions are coarse-grained in nature from an operational or external security perspective.

Explanation/Reference:
Explanation: An Intrusion detection system (IDS) is software and/or hardware designed to detect unwanted attempts at accessing, manipulating, and/or disabling of computer systems, mainly through a network, such as the Internet. These attempts may take the form of attacks, as examples, by crackers, malware and/or disgruntled employees. An IDS cannot directly detect attacks within properly encrypted traffic. An intrusion detection system is used to detect several types of malicious behaviors that can compromise the security and trust of a computer system. This includes network attacks against vulnerable services, data driven attacks on applications, host based attacks such as privilege escalation, unauthorized logins and access to sensitive files, and malware (viruses, trojan horses, and worms). Answer: D is incorrect. Access Control List (ACL) is the most commonly used object in Cisco IOS. It filters packets or network traffic by controlling whether routed packets are forwarded or blocked at the router’s interfaces. According to the criteria specified within the access lists, router determines whether the packets to be forwarded or dropped. Access control list criteria could be the source or destination address of the traffic or other information. The types of Cisco ACLs are Standard IP, Extended IP, IPX, Appletalk, etc. Answer: B 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: A is incorrect. Direct-attached storage (DAS) is a digital storage system that is directly attached to a server or workstation, without using a storage network.

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

Explanation/Reference:
Explanation: ITIL defines 3 types of Service Level Agreement (SLA) structures, which are as follows:
1.Customer Based: It covers all services used by an individual customer group. 2.Service Based: It is one service for all customers. 3.Multi-Level: Some examples of Multi-Level SLA are 3 Tier SLA encompassing Corporate and Customer & Service Layers. AnswerC and A are incorrect. There are no such SLA structures as Segment Based and Component Based.

Explanation/Reference:
Explanation: Phase 4, Post Accreditation Phase of the DITSCAP includes the activities, which are necessary for the continuing operation of an accredited IT system in its computing environment and for addressing the changing threats that a system faces throughout its life cycle. Answer: B is incorrect. Phase
1, Definition, focuses on understanding the mission, the environment, and the architecture in order to determine the security requirements and level of effort necessary to achieve accreditation. Answer: C is incorrect. Phase 2, Verification, verifies the evolving or modified system’s compliance with the information agreed on in the System Security Authorization Agreement (SSAA). Answer: A is incorrect. Phase 3 validates the compliance of a fully integrated system with the information stated in the SSAA.

Trusted computing base (TCB) refers to hardware, software, controls, and processes that cause a computer system or network to be devoid of malicious software or hardware. Maintaining the trusted computing base (TCB) is essential for security policy to be implemented successfully. Answer D is incorrect. Internet Protocol Security (IPSec) is a standard-based protocol that provides the highest level of VPN security. IPSec can encrypt virtually everything above the networking layer. It is used for VPN connections that use the L2TP protocol. It secures both data and password. IPSec cannot be used with Point-to-Point Tunneling Protocol (PPTP). Answer A is incorrect. The Common data security architecture (CDSA) is a set of layered security services and cryptographic framework. It deals with the communications and data security problems in the emerging Internet and intranet application space. It presents an infrastructure for building cross-platform, interoperable, security-enabled applications for client-server environments. Answer B is incorrect. An application programming interface (API) is an interface implemented by a software program which enables it to interact with other software. It facilitates interaction between different software programs similar to the way the user interface facilitates interaction between humans and computers. An API is implemented by applications, libraries, and operating systems to determine their vocabularies and calling conventions, and is used to access their services. It may include specifications for routines, data structures, object classes, and protocols used to communicate between the consumer and the implementer of the API.