ISC2 CISSP Dumps - Pass Certified Information Systems Security Professional Exam in 2026

Recovery strategies of a Disaster Recovery planning (DRP) must be aligned with the cost/benefit analysis and business objectives. A DRP is a part of a BCP/DRP that focuses on restoring the normal operation of the organization's IT systems and infrastructure after a disruption or disaster. A DRP should include various components, such as:

Risk assessment: a process that identifies and evaluates the potential threats and vulnerabilities that might affect the IT systems and infrastructure, and estimates the likelihood and impact of a disruption or disaster

Recovery objectives: a process that defines and quantifies the acceptable levels of recovery for the IT systems and infrastructure, such as the recovery point objective (RPO), which is the maximum amount of data loss that can be tolerated, and the recovery time objective (RTO), which is the maximum amount of downtime that can be tolerated

Recovery strategies: a process that selects and implements the appropriate methods and resources to recover the IT systems and infrastructure, such as backup, replication, redundancy, or failover

DRP document: a document that outlines and details the scope, purpose, and features of the DRP, such as the roles and responsibilities, the recovery procedures, and the contact information

Testing, training, and exercises: a process that evaluates and validates the effectiveness and readiness of the DRP, and educates and trains the relevant stakeholders, such as the IT staff, the management, and the users, on the DRP and their roles and responsibilities

Maintenance and review: a process that monitors and updates the DRP, and addresses any changes or issues that might affect the DRP, such as the IT requirements, the threat landscape, or the feedback and lessons learned

Recovery strategies of a DRP must be aligned with the cost/benefit analysis and business objectives, because it can ensure that the DRP is feasible and suitable, and that it can achieve the desired outcomes and objectives in a cost-effective and efficient manner. A cost/benefit analysis is a technique that compares the costs and benefits of different recovery strategies, and determines the optimal one that provides the best value for money. A business objective is a goal or a target that the organization wants to achieve through its IT systems and infrastructure, such as increasing the productivity, profitability, or customer satisfaction. A recovery strategy that is aligned with the cost/benefit analysis and business objectives can help to:

Optimize the use and allocation of the IT resources and funds for the recovery

Minimize the negative impacts and risks of a disruption or disaster on the IT systems and infrastructure

Maximize the positive outcomes and benefits of the recovery for the IT systems and infrastructure

Support and enable the achievement of the organizational goals and targets through the IT systems and infrastructure

The other options are not the factors that the recovery strategies of a DRP must be aligned with, but rather factors that should be considered or addressed when developing or implementing the recovery strategies of a DRP. Hardware and software compatibility issues are factors that should be considered when developing the recovery strategies of a DRP, because they can affect the functionality and interoperability of the IT systems and infrastructure, and may require additional resources or adjustments to resolve them. Applications' criticality and downtime tolerance are factors that should be addressed when implementing the recovery strategies of a DRP, because they can determine the priority and urgency of the recovery for different applications, and may require different levels of recovery objectives and resources. Budget constraints and requirements are factors that should be considered when developing the recovery strategies of a DRP, because they can limit the availability and affordability of the IT resources and funds for the recovery, and may require trade-offs or compromises to balance them.

The most important factor when determining appropriate countermeasures for an identified risk is the organizational risk tolerance, which is the level of risk that the organization is willing to accept or reject. The risk tolerance reflects the organization's mission, objectives, culture, and values, and influences the selection and implementation of security controls. The risk tolerance also helps to balance the cost and benefit of the countermeasures, as well as the interaction with existing controls and the availability of patches. Reference: CISSP domain 1: Security and risk management, Risk management concepts and the CISSP (part 1), Learn About the Different Types of Risk Analysis in CISSP, Risk Response, countermeasures, considerations and controls, The 8 CISSP Domains Explained

Log analysis is the most essential method to recognize a system attack. Log analysis is the process of collecting, reviewing, and interpreting the records of events and activities that occur on a system or a network. Logs can provide valuable information and evidence about the source, nature, and impact of an attack, as well as the actions and responses of the system or the network. Log analysis can help to detect and analyze anomalies, patterns, trends, and indicators of compromise, as well as to identify and correlate the root cause, scope, and severity of an attack. Log analysis can also help to support incident response, forensic investigation, audit, and compliance activities. Log analysis requires the use of appropriate tools, techniques, and procedures, as well as the implementation of effective log management practices, such as log generation, collection, storage, retention, protection, and disposal. Stateful firewall, distributed antivirus, and passive honeypot are not the methods that must be in place to recognize a system attack, although they may be related or useful techniques. Stateful firewall is a type of network security device that monitors and controls the incoming and outgoing network traffic based on the state, context, and rules of the network connections. Stateful firewall can help to prevent or mitigate some types of attacks, such as denial-of-service, spoofing, or port scanning, by filtering or blocking the packets that do not match the established or expected state of the connection. However, stateful firewall is not sufficient to recognize a system attack, as it may not be able to detect or analyze the attacks that bypass or exploit the firewall rules, such as application-layer attacks, encryption-based attacks, or insider attacks. Distributed antivirus is a type of malware protection solution that uses a centralized server and multiple agents or clients to scan, detect, and remove malware from the systems or the network. Distributed antivirus can help to prevent or mitigate some types of attacks, such as viruses, worms, or ransomware, by updating and applying the malware signatures, heuristics, or behavioral analysis to the systems or the network. However, distributed antivirus is not sufficient to recognize a system attack, as it may not be able to detect or analyze the attacks that evade or disable the antivirus solution, such as zero-day attacks, polymorphic malware, or rootkits. Passive honeypot is a type of decoy system or network that mimics the real system or network and attracts the attackers to interact with it, while monitoring and recording their activities. Passive honeypot can help to divert or distract some types of attacks, such as reconnaissance, scanning, or probing, by providing false or misleading information to the attackers, while collecting valuable intelligence about their techniques, tools, or motives. However, passive honeypot is not sufficient to recognize a system attack, as it may not be able to detect or analyze the attacks that target the real system or network, or that avoid or identify the honeypot.

When adopting software as a service (SaaS), the security responsibility that will remain with the adopting organization is data classification. SaaS is a cloud service model that provides software applications over the internet, hosted and managed by the service provider. The service provider is responsible for the security of the physical, network, and application layers, as well as the data storage and processing. However, the adopting organization is still responsible for the security of the data itself, such as the data classification, encryption, backup, and retention. Data classification is the process of assigning labels or categories to the data based on its sensitivity, value, or risk. Data classification can help to determine the appropriate level of protection, access control, and compliance for the data. Physical security, network control, and application layer control are not security responsibilities that will remain with the adopting organization when using SaaS, but they are the responsibilities of the service provider.Reference:CISSP All-in-One Exam Guide, Eighth Edition, Chapter 5: Security Engineering, page 654;Official (ISC)2 Guide to the CISSP CBK, Fifth Edition, Chapter 3: Security Architecture and Engineering, page 437.

The final step in the waterfall method for contingency planning is maintenance. Contingency planning is a process that involves the identification, analysis, and preparation of the actions, measures, or solutions, that can be taken or implemented in the event of a disruption or interruption that may affect the organization, such as natural disasters, human errors, or cyberattacks. Contingency planning can help to ensure the continuity, availability, or reliability of the organization, as well as to protect the organization from various impacts or consequences of the disruption or interruption, such as loss of revenue, reputation, or customers. Contingency planning can follow various methods, models, or frameworks, such as the waterfall method, the agile method, or the spiral method, that can define, structure, or guide the contingency planning process, by using various phases, stages, or steps, such as initiation, planning, testing, implementation, or review. The final step in the waterfall method for contingency planning is maintenance, which means to monitor, update, or improve the contingency plan, actions, measures, or solutions, that are taken or implemented in the event of a disruption or interruption, to ensure the effectiveness, efficiency, or relevance of the contingency plan, actions, measures, or solutions, as well as to address any changes, issues, or feedbacks, that may arise or occur in the organization, environment, or situation. Maintenance can help to ensure the quality, performance, or compliance of the contingency plan, actions, measures, or solutions, by providing a continuous, consistent, or adaptive process, that can evaluate, measure, or enhance the contingency plan, actions, measures, or solutions. Testing, implementation, or training are not the final steps in the waterfall method for contingency planning, as they are either more related to the other phases, stages, or steps, such as testing, which means to verify, validate, or simulate the contingency plan, actions, measures, or solutions, that are taken or implemented in the event of a disruption or interruption, to ensure the functionality, reliability, or security of the contingency plan, actions, measures, or solutions, implementation, which means to execute, activate, or apply the contingency plan, actions, measures, or solutions, that are taken or implemented in the event of a disruption or interruption, to ensure the continuity, availability, or recovery of the organization, or training, which means to educate, instruct, or inform the personnel, stakeholders, or customers, about the contingency plan, actions, measures, or solutions, that are taken or implemented in the event of a disruption or interruption, to ensure the awareness, preparedness, or participation of the personnel, stakeholders, or customers, that are performed or conducted before the maintenance, during the contingency planning process, or to the other activities, tasks, or functions, such as verification, execution, or education, that are performed or conducted during the contingency planning process, rather than to the maintenance, during the contingency planning process.Reference:CISSP All-in-One Exam Guide, Eighth Edition, Chapter 7: Security Operations, page 443;CISSP Official (ISC)2 Practice Tests, Third Edition, Domain 7: Security Operations, Question 7.12, page 275.