Free Practice Questions for Isaca CISM Exam

The document that should be triggered first when unknown malware has infected an organization’s critical system is the incident response plan because it defines the roles and responsibilities, procedures and protocols, tools and techniques for responding to and managing a security incident effectively and efficiently. Disaster recovery plan (DRP) is not a good document for this purpose because it focuses on restoring the organization’s critical systems and operations after a major disruption or disaster, which may not be necessary or appropriate at this stage. Business continuity plan (BCP) is not a good document for this purpose because it focuses on restoring the organization’s critical business functions and operations after a major disruption or disaster, which may not be necessary or appropriate at this stage. Vulnerability management plan is not a good document for this purpose because it focuses on identifying and evaluating the security weaknesses or exposures of the organization’s systems and assets, which may not be relevant or helpful at this stage. References: https://www.isaca.org/resources/isaca-journal/issues/2017/volume-5/incident-response-lessons-learned https://www.isaca.org/resources/isaca-journal/issues/2018/volume-3/incident-response-lessons-learned

 A security information and event management (SIEM) system is a tool that collects, analyzes, and correlates security events from various sources, such as firewalls, intrusion detection systems, antivirus software, and other devices. A SIEM system can provide real-time alerts, dashboards, reports, and forensic analysis of security incidents. The greatest value of a SIEM system is that it can facilitate the monitoring of risk occurrences by identifying anomalies, trends, patterns, and indicators of compromise that may otherwise go unnoticed. A SIEM system can also help with incident response, compliance, and audit activities by providing evidence and documentation of security events.

References =

ISACA, CISM Review Manual, 16th Edition, 2020, page 2291

ISACA, CISM Review Questions, Answers & Explanations Database - 12 Month Subscription, 2020, question ID 2082

The greatest value provided by a Security Information and Event Management (SIEM) system is facilitating the monitoring of risk occurrences. SIEM systems collect, analyze and alert on security-related data from various sources such as firewall logs, intrusion detection/prevention systems, and system logs. This allows organizations to identify security threats in real-time and respond quickly, helping to mitigate potential harm to their systems and data.

Creating an inventory is the FIRST step in developing an asset classification program because it helps to identify and list all the information systems assets of the organization that need to be protected and classified. An inventory should include the asset name, description, owner, custodian, location, type, value, and other relevant attributes. Creating an inventory also enables the establishment of the ownership and custody of the assets, which are essential for defining the roles and responsibilities for asset protection and classification12. Categorizing each asset (A) is a subsequent step in developing an asset classification program, after creating an inventory. Categorizing each asset involves assigning a security level or category to each asset based on its value, sensitivity, and criticality to the organization. The security level or category determines the protection level and controls required for each asset12. Creating a business case for a digital rights management tool © is not a step in developing an asset classification program, but rather a possible outcome or recommendation based on the asset classification results. A digital rights management tool is a type of control that can help to enforce the security policies and objectives for the classified assets, such as preventing unauthorized access, copying, or distribution of the assets3. Implementing a data loss prevention (DLP) system (D) is also not a step in developing an asset classification program, but rather a possible outcome or recommendation based on the asset classification results. A DLP system is a type of control that can help to monitor, detect, and prevent the loss or leakage of the classified assets, such as through email, web, or removable media4. References = 1: CISM Review Manual 15th Edition, page 77-781; 2: IT Asset Valuation, Risk Assessment and Control Implementation Model - ISACA2; 3: What is Digital Rights Management? - Definition from Techopedia3; 4: What is Data Loss Prevention (DLP)? - Definition from Techopedia4

= The organizational tolerance to service interruption is the most important consideration when defining a recovery strategy in a business continuity plan (BCP), as it reflects the degree of risk that the organization is willing to accept in the event of a disaster. The organizational tolerance to service interruption determines the acceptable level of downtime, data loss, or disruption that the organization can tolerate, and thus guides the selection of recovery objectives, strategies, and resources. Legal and regulatory requirements are external factors that influence the recovery strategy, but are not the primary consideration. Likelihood of a disaster is a factor that affects the recovery strategy, but is not the most important one. Geographical location of the backup site is a factor that affects the recovery strategy, but is not as critical as organizational tolerance to service interruption. References = CISM Review Manual, 16th Edition, page 1731; CISM Review Questions, Answers & Explanations Manual, 10th Edition, page 792

Learn more:

1. isaca.org2. amazon.com3. gov.uk

A privacy statement should inform the users of the website how their personal information will be collected, used, shared, and protected by the organization. References = CISM Review Manual, 16th Edition, Chapter 4, Section 4.2.1.11

After an intrusion has been detected and contained, the system should be recovered to a known and trusted state. The best practice for ensuring the integrity of the recovered system is to install the OS, patches, and application from the original source, such as the vendor’s website or media. This way, any malicious code or backdoors that may have been inserted by the intruder can be eliminated. Restoring the OS, patches, and application from a backup may not guarantee the integrity of the system, as the backup may have been compromised or outdated. Restoring the application and data from a forensic copy may preserve the evidence of the intrusion, but it may also reintroduce the vulnerability or malware that allowed the intrusion in the first place. Removing all signs of the intrusion from the OS and application may not be sufficient or feasible, as the intruder may have made subtle or hidden changes that are difficult to detect or undo.

References =

ISACA, CISM Review Manual, 16th Edition, 2020, page 2401

ISACA, CISM Review Questions, Answers & Explanations Database - 12 Month Subscription, 2020, question ID 2132

The BEST practice for ensuring the integrity of the recovered system after an intrusion is to restore the OS, patches, and application from a backup. This will ensure that the system is in a known good state, without any potential residual malicious code or changes from the intrusion. Restoring from a backup also enables the organization to revert to a previous configuration that has been tested and known to be secure. This step should be taken prior to conducting a thorough investigation and forensic analysis to determine the cause and extent of the intrusion.

Procedures are the detailed steps or instructions for performing specific tasks or activities. They are usually aligned with standards, policies and guidelines, but they are more specific and prescriptive. System maintenance instructions and schedules are examples of procedures that should be documented and followed to ensure the proper functioning and security of the system.

The explanation given is: “A BIA is a process that identifies and evaluates the potential effects of natural and man-made events on business operations. It helps to understand how critical systems are interrelated and what their dependencies are. A BIA also helps to determine the RTOs for each system. The other options are not directly related to understanding the relationships between critical systems.”

 A business-aligned information security program is one that supports the organization’s business objectives and aligns the information security strategy with the business functions. A business impact analysis (BIA) is a process that identifies the critical business processes, assets, and functions of an organization, and assesses their potential impact in the event of a disruption or loss. A BIA helps to prioritize the information security requirements and controls that are needed to protect the organization’s critical assets and functions from various threats and risks. Therefore, a BIA is one of the most useful sources when planning a business-aligned information security program. References = CISM Review Manual 15th Edition, page 254; CISM Review Questions, Answers & Explanations Database - 12 Month Subscription, QID 229.

The most useful source when planning a business-aligned information security program is a Business Impact Analysis (BIA). A BIA is a process of identifying and evaluating the potential effects of disruptions to an organization's operations, and helps to identify the security controls and measures that should be implemented to reduce the impact of those disruptions. The BIA should include an assessment of the organization's information security posture, including its security policies, risk register, and enterprise architecture. With this information, organizations can develop an information security program that is aligned to the organization's business objectives.

The ultimate goal of an anti-phishing campaign is to reduce the risk and impact of phishing attacks on the organization. Therefore, the most relevant and reliable indicator of the effectiveness of an anti-phishing campaign is the decreased number of incidents that have occurred as a result of phishing. This metric shows how well the employees have learned to recognize and report phishing emails, and how well the security controls have prevented or mitigated the damage caused by phishing.

References = Five Ways to Achieve a Successful Anti-Phishing Campaign; Don’t click: towards an effective anti-phishing training. A comparative literature review; CISA, NSA, FBI, MS-ISAC Publish Guide on Preventing Phishing Intrusions

A red team exercise is a simulated cyber attack conducted by a group of ethical hackers or security experts (the red team) against an organization’s network, systems, and staff (the blue team) to test the organization’s ability to detect, respond, and recover from a real cyber attack. A red team exercise provides an information security manager with the most accurate indication of the organization’s ability to respond to a cyber attack, because it mimics the tactics, techniques, and procedures of real threat actors, and challenges the organization’s security posture, incident response plan, and security awareness in a realistic and adversarial scenario12. A red team exercise can measure the following aspects of the organization’s cyber attack response capability3:

The effectiveness and efficiency of the security controls and processes in preventing, detecting, and mitigating cyber attacks

The readiness and performance of the incident response team and other stakeholders in following the incident response plan and procedures

The communication and coordination among the internal and external parties involved in the incident response process

The resilience and recovery of the critical assets and functions affected by the cyber attack

The lessons learned and improvement opportunities identified from the cyber attack simulation

The other options, such as a walk-through of the incident response plan, a black box penetration test, or a simulated phishing exercise, are not as accurate as a red team exercise in indicating the organization’s ability to respond to a cyber attack, because they have the following limitations4 :

A walk-through of the incident response plan is a theoretical and hypothetical exercise that involves reviewing and discussing the incident response plan and procedures with the relevant stakeholders, without actually testing them in a live environment. A walk-through can help to familiarize the participants with the incident response roles and responsibilities, and to identify any gaps or inconsistencies in the plan, but it cannot measure the actual performance and effectiveness of the incident response process under a real cyber attack scenario.

A black box penetration test is a technical and targeted exercise that involves testing the security of a specific system or application, without any prior knowledge or access to its internal details or configuration. A black box penetration test can help to identify the vulnerabilities and weaknesses of the system or application, and to simulate the perspective and behavior of an external attacker, but it cannot test the security of the entire network or organization, or the response of the incident response team and other stakeholders to a cyber attack.

A simulated phishing exercise is a social engineering and awareness exercise that involves sending fake emails or messages to the organization’s staff, to test their ability to recognize and report phishing attempts. A simulated phishing exercise can help to measure the level of security awareness and training of the staff, and to simulate one of the most common cyber attack vectors, but it cannot test the security of the network or systems, or the response of the incident response team and other stakeholders to a cyber attack.

References = 1: What is a Red Team Exercise? | Redscan 2: Red Team vs Blue Team: How They Differ and Why You Need Both | CISA 3: Red Team Exercises: What They Are and How to Run Them | Rapid7 4: What is a Walkthrough Test? | Definition and Examples | ISACA : Penetration Testing Types: Black Box, White Box, and Gray Box | CISA

Security-related KRIs are metrics that measure the effectiveness of the information security profile in achieving the business objectives and managing the risks. Reviewing security-related KRIs can help to determine if the information security profile is aligned with business requirements, as they reflect the security performance and outcomes that are relevant for the business. Reviewing other options, such as KPIs, CSAs, or audits, may provide some insights into the security status, but they are not the best way to assess the alignment with business requirements, as they may not capture the business context and goals adequately. References:

https://www.nist.gov/cyberframework/examples-framework-profiles

https://www.isaca.org/resources/isaca-journal/issues/2019/volume-5/accountability-for-information-security-roles-and-responsibilities-part-1

https://www.isaca.org/resources/isaca-journal/issues/2017/volume-4/enterprise-security-architecturea-top-down-approach

A validation of the current firewall rule set is the best method for determining whether a firewall has been configured to provide a comprehensive perimeter defense because it verifies that the firewall rules are consistent, accurate, and effective in allowing or blocking traffic according to the security policies and standards of the organization. A port scan of the firewall from an internal source is not a good method because it does not test the firewall’s behavior from an external perspective, which is more relevant for perimeter defense. A ping test from an external source is not a good method because it only tests the firewall’s availability and responsiveness, not its security or functionality. A simulated denial of service (DoS) attack against the firewall is not a good method because it only tests the firewall’s resilience and performance under high traffic load, not its security or functionality. References: https://www.isaca.org/resources/isaca-journal/issues/2016/volume-4/technical-security-standards-for-information-systems https://www.isaca.org/resources/isaca-journal/issues/2017/volume-2/the-value-of-penetration-testing https://www.isaca.org/resources/isaca-journal/issues/2016/volume-5/security-scanning-versus-penetration-testing

Human error remains the leading cause of cybersecurity breaches, including mishandling data, misconfigurations, and falling for phishing attacks.

“Human error continues to be one of the most common causes of data breaches and security incidents.”

— CISM Review Manual 15th Edition, Chapter 4: Incident Management, Section: Root Cause Analysis*

 Ensuring current documentation of security processes is the best way to support information security management in the event of organizational changes in security personnel. Documentation of security processes provides a clear and consistent reference for the roles, responsibilities, procedures, and standards of the information security program. It helps to maintain the continuity and effectiveness of the security operations, as well as the compliance with the security policies and regulations. Documentation of security processes also facilitates the knowledge transfer and training of new or existing security personnel, as well as the communication and collaboration with other stakeholders. By ensuring current documentation of security processes, the information security manager can minimize the impact of organizational changes in security personnel, and ensure a smooth transition and alignment of the security program. References = CISM Review Manual 15th Edition, page 43, page 45.