CISA-KR 문제 531
IS 감사원이 은행의 2차 데이터 센터를 호스팅하는 제3자 공급업체와 체결한 은행의 서비스 수준 계약(SLA)을 검토하고 있습니다. 다음 중 감사원이 가장 우려해야 할 사항은 무엇입니까?
정답: A
The recovery time objective (RTO) has a longer duration than documented in the disaster recovery plan (DRP) should be of greatest concern to the auditor when reviewing a bank's SLA with a third-party provider that hosts the bank's secondary data center. This is because the RTO is the maximum acceptable time for restoring a system or an application after a disaster or a disruption. A longer RTO than the DRP means that the bank may not be able to resume its critical business operations within the expected time frame, which may result in significant financial losses, reputational damage, customer dissatisfaction, or regulatory non- compliance12.
The SLA has not been reviewed in more than a year is not the greatest concern, although it is a good practice to review and update the SLA periodically to ensure that it reflects the current business needs and expectations, as well as any changes in the service provider's capabilities or performance. However, a lack of review does not necessarily imply a lack of compliance or quality of service, as long as the SLA is still valid and enforceable34.
Backup data is hosted online only is not the greatest concern, although it may pose some security risks if the backup data is not encrypted or protected by adequate access controls. Online backup data means that the backup data is stored on a remote server that can be accessed via the Internet, which may offer some advantages such as faster recovery, lower cost, and higher availability than offline backup data that is stored on physical media such as tapes or disks. However, online backup data also requires reliable network connectivity and bandwidth, as well as proper security measures to prevent unauthorized access or tampering56.
The recovery point objective (RPO) has a shorter duration than documented in the DRP is not the greatest concern, although it may indicate some inconsistency or misalignment between the SLA and the DRP. The RPO is the maximum acceptable amount of data loss measured in time from a disaster or a disruption. A shorter RPO than the DRP means that the bank may lose less data than expected, which may be beneficial for its business continuity and recovery. However, a shorter RPO may also imply more frequent backups, which may increase the cost and complexity of the backup process
The SLA has not been reviewed in more than a year is not the greatest concern, although it is a good practice to review and update the SLA periodically to ensure that it reflects the current business needs and expectations, as well as any changes in the service provider's capabilities or performance. However, a lack of review does not necessarily imply a lack of compliance or quality of service, as long as the SLA is still valid and enforceable34.
Backup data is hosted online only is not the greatest concern, although it may pose some security risks if the backup data is not encrypted or protected by adequate access controls. Online backup data means that the backup data is stored on a remote server that can be accessed via the Internet, which may offer some advantages such as faster recovery, lower cost, and higher availability than offline backup data that is stored on physical media such as tapes or disks. However, online backup data also requires reliable network connectivity and bandwidth, as well as proper security measures to prevent unauthorized access or tampering56.
The recovery point objective (RPO) has a shorter duration than documented in the DRP is not the greatest concern, although it may indicate some inconsistency or misalignment between the SLA and the DRP. The RPO is the maximum acceptable amount of data loss measured in time from a disaster or a disruption. A shorter RPO than the DRP means that the bank may lose less data than expected, which may be beneficial for its business continuity and recovery. However, a shorter RPO may also imply more frequent backups, which may increase the cost and complexity of the backup process
CISA-KR 문제 532
사고 대응 계획의 주요 목적은 다음과 같습니다.
정답: A
The primary purpose of an incident response plan is to reduce the impact of an adverse event on information assets. An incident response plan is a set of instructions and procedures that guide the organization's actions in the event of a security breach, cyberattack, or other disruption that affects its information systems and data.
An incident response plan aims to:
Detect and identify the incident as soon as possible.
Contain and isolate the incident to prevent further damage or spread.
Analyze and investigate the incident to determine its cause, scope, and impact.
Eradicate and eliminate the incident and its root causes from the affected systems and data.
Recover and restore the normal operations and functionality of the systems and data.
Learn and improve from the incident by documenting the lessons learned, best practices, and recommendations for future prevention and mitigation.
By following an incident response plan, the organization can minimize the negative consequences of an adverse event on its information assets, such as:
Loss or corruption of data or information.
Disclosure or theft of confidential or sensitive data or information.
Interruption or degradation of system or service availability or performance.
Legal or regulatory noncompliance or liability.
Financial or reputational loss or damage.
An incident response plan also helps the organization to demonstrate its due diligence and accountability in protecting its information assets and complying with its legal and contractual obligations.
The other options are not the primary purpose of an incident response plan, although they may be secondary benefits or outcomes of having one.
Increasing the effectiveness of preventive controls is not the primary purpose of an incident response plan.
Preventive controls are controls that aim to prevent or deter incidents from occurring in the first place, such as firewalls, antivirus software, encryption, authentication, etc. An incident response plan is a reactive control that deals with incidents after they have occurred. However, an incident response plan may help to improve the effectiveness of preventive controls by identifying and addressing their weaknesses or gaps.
Reducing the maximum tolerable downtime (MTD) of impacted systems is not the primary purpose of an incident response plan. MTD is a measure of how long an organization can tolerate a system or service outage before it causes unacceptable harm or loss to its business operations or objectives. An incident response plan may help to reduce the MTD of impacted systems by facilitating a faster and smoother recovery process.
However, reducing the MTD is not the main goal of an incident response plan, but rather a desired outcome.
Increasing awareness of impacts from adverse events to IT systems is not the primary purpose of an incident response plan. Awareness is a state of being informed or conscious of something. An incident response plan may help to increase awareness of impacts from adverse events to IT systems by providing information and communication channels for stakeholders, such as management, employees, customers, regulators, etc.
However, increasing awareness is not the main objective of an incident response plan, but rather a means to achieve other objectives, such as reducing impact, ensuring compliance, or maintaining trust.
An incident response plan aims to:
Detect and identify the incident as soon as possible.
Contain and isolate the incident to prevent further damage or spread.
Analyze and investigate the incident to determine its cause, scope, and impact.
Eradicate and eliminate the incident and its root causes from the affected systems and data.
Recover and restore the normal operations and functionality of the systems and data.
Learn and improve from the incident by documenting the lessons learned, best practices, and recommendations for future prevention and mitigation.
By following an incident response plan, the organization can minimize the negative consequences of an adverse event on its information assets, such as:
Loss or corruption of data or information.
Disclosure or theft of confidential or sensitive data or information.
Interruption or degradation of system or service availability or performance.
Legal or regulatory noncompliance or liability.
Financial or reputational loss or damage.
An incident response plan also helps the organization to demonstrate its due diligence and accountability in protecting its information assets and complying with its legal and contractual obligations.
The other options are not the primary purpose of an incident response plan, although they may be secondary benefits or outcomes of having one.
Increasing the effectiveness of preventive controls is not the primary purpose of an incident response plan.
Preventive controls are controls that aim to prevent or deter incidents from occurring in the first place, such as firewalls, antivirus software, encryption, authentication, etc. An incident response plan is a reactive control that deals with incidents after they have occurred. However, an incident response plan may help to improve the effectiveness of preventive controls by identifying and addressing their weaknesses or gaps.
Reducing the maximum tolerable downtime (MTD) of impacted systems is not the primary purpose of an incident response plan. MTD is a measure of how long an organization can tolerate a system or service outage before it causes unacceptable harm or loss to its business operations or objectives. An incident response plan may help to reduce the MTD of impacted systems by facilitating a faster and smoother recovery process.
However, reducing the MTD is not the main goal of an incident response plan, but rather a desired outcome.
Increasing awareness of impacts from adverse events to IT systems is not the primary purpose of an incident response plan. Awareness is a state of being informed or conscious of something. An incident response plan may help to increase awareness of impacts from adverse events to IT systems by providing information and communication channels for stakeholders, such as management, employees, customers, regulators, etc.
However, increasing awareness is not the main objective of an incident response plan, but rather a means to achieve other objectives, such as reducing impact, ensuring compliance, or maintaining trust.
CISA-KR 문제 533
증분 백업을 사용하는 가장 큰 이유는 무엇입니까?
정답: D
Incremental backups are backups that only copy the data that has changed since the last backup, whether it was a full or incremental backup. The main reason to use incremental backups is to minimize the backup time and resources, as they require less storage space and network bandwidth than full backups. Incremental backups can also improve key availability metrics, such as recovery point objective (RPO) and recovery time objective (RTO), but that is not their primary purpose. Reducing costs associated with backups and increasing backup resiliency and redundancy are possible benefits of incremental backups, but they depend on other factors, such as the backup frequency, retention policy, and media type. References: CISA Review Manual (Digital Version): Chapter 5 - Information Systems Operations and Business Resilience
CISA-KR 문제 534
기술 조직의 성숙도 모델을 검토할 때 IS 감사자가 집중해야 할 가장 중요한 영역은 무엇입니까?
정답: C
A maturity model for a technology organization is a tool that measures the progress and capability of the IT function in relation to its goals, processes, and practices. A maturity model can help identify gaps and areas for improvement, as well as benchmark the IT function against industry standards or best practices. One of the key aspects of a maturity model is the definition and clarity of roles and responsibilities for the IT function and its stakeholders. A roles and responsibility matrix, such as a RACI matrix, is a document that clarifies who is responsible, accountable, consulted, and informed for each task or deliverable in a project or process.
A roles and responsibility matrix can help avoid confusion, duplication, or omission of work, as well as ensure accountability and communication among the IT function and its customers, partners, and suppliers.
Therefore, an IS auditor should focus on reviewing the roles and responsibility matrix when evaluating the maturity model for a technology organization.
A standard operating procedure (SOP) is a document that describes the steps and instructions for performing a routine or repetitive task or process. SOPs are important for ensuring consistency, quality, and compliance in the IT function, but they are not directly related to the maturity model. A service level agreement (SLA) is a contract that defines the expectations and obligations between an IT service provider and its customers. SLAs are important for ensuring customer satisfaction, performance measurement, and dispute resolution in the IT function, but they are not directly related to the maturity model. A business resiliency plan is a document that outlines how an IT function will continue to operate or recover from a disruption or disaster. Business resiliency is important for ensuring availability, reliability, and security in the IT function, but it is not directly related to the maturity model. References: 1: Maturity Models for IT & Technology | Splunk 2: Responsibility assignment matrix - Wikipedia 3: Roles and Responsibilities Matrix - SDLCforms
A roles and responsibility matrix can help avoid confusion, duplication, or omission of work, as well as ensure accountability and communication among the IT function and its customers, partners, and suppliers.
Therefore, an IS auditor should focus on reviewing the roles and responsibility matrix when evaluating the maturity model for a technology organization.
A standard operating procedure (SOP) is a document that describes the steps and instructions for performing a routine or repetitive task or process. SOPs are important for ensuring consistency, quality, and compliance in the IT function, but they are not directly related to the maturity model. A service level agreement (SLA) is a contract that defines the expectations and obligations between an IT service provider and its customers. SLAs are important for ensuring customer satisfaction, performance measurement, and dispute resolution in the IT function, but they are not directly related to the maturity model. A business resiliency plan is a document that outlines how an IT function will continue to operate or recover from a disruption or disaster. Business resiliency is important for ensuring availability, reliability, and security in the IT function, but it is not directly related to the maturity model. References: 1: Maturity Models for IT & Technology | Splunk 2: Responsibility assignment matrix - Wikipedia 3: Roles and Responsibilities Matrix - SDLCforms
CISA-KR 문제 535
데이터 분류 프로그램을 만들 때 첫 번째 단계는 무엇입니까?
정답: D
The first step when creating a data classification program is to develop a policy (D). A data classification policy is a document that defines the purpose, scope, objectives, roles, responsibilities, and procedures of the data classification program. A data classification policy is essential for establishing the governance framework, standards, and guidelines for the data classification process. A data classification policy also helps to communicate the expectations and benefits of the data classification program to the stakeholders, such as data owners, users, custodians, and auditors12.
Categorizing and prioritizing data (A) is not the first step when creating a data classification program, but the third step. Categorizing and prioritizing data involves defining and applying the criteria and labels for classifying data based on its sensitivity, value, and risk. For example, data can be categorized into public, internal, confidential, or restricted levels. Categorizing and prioritizing data helps to identify and protect the most critical and sensitive data assets of the organization12.
Developing data process maps (B) is not the first step when creating a data classification program, but the fourth step. Developing data process maps involves documenting and analyzing the flow and lifecycle of data within the organization. Data process maps show how data is created, collected, stored, processed, transmitted, used, shared, archived, and disposed of. Developing data process maps helps to understand the context and dependencies of data, as well as to identify and mitigate any potential risks or issues related to data quality, security, or compliance12.
Categorizing information by owner is not the first step when creating a data classification program, but the second step. Categorizing information by owner involves assigning roles and responsibilities for each type of data based on its ownership and stewardship. Data owners are the individuals or entities that have the authority and accountability for the data. Data stewards are the individuals or entities that have the operational responsibility for managing and maintaining the data. Data custodians are the individuals or entities that have the technical responsibility for implementing and enforcing the security and access controls for the data12.
References:
7 Steps to Effective Data Classification | CDW
Data Classification: The Basics and a 6-Step Checklist - NetApp
Categorizing and prioritizing data (A) is not the first step when creating a data classification program, but the third step. Categorizing and prioritizing data involves defining and applying the criteria and labels for classifying data based on its sensitivity, value, and risk. For example, data can be categorized into public, internal, confidential, or restricted levels. Categorizing and prioritizing data helps to identify and protect the most critical and sensitive data assets of the organization12.
Developing data process maps (B) is not the first step when creating a data classification program, but the fourth step. Developing data process maps involves documenting and analyzing the flow and lifecycle of data within the organization. Data process maps show how data is created, collected, stored, processed, transmitted, used, shared, archived, and disposed of. Developing data process maps helps to understand the context and dependencies of data, as well as to identify and mitigate any potential risks or issues related to data quality, security, or compliance12.
Categorizing information by owner is not the first step when creating a data classification program, but the second step. Categorizing information by owner involves assigning roles and responsibilities for each type of data based on its ownership and stewardship. Data owners are the individuals or entities that have the authority and accountability for the data. Data stewards are the individuals or entities that have the operational responsibility for managing and maintaining the data. Data custodians are the individuals or entities that have the technical responsibility for implementing and enforcing the security and access controls for the data12.
References:
7 Steps to Effective Data Classification | CDW
Data Classification: The Basics and a 6-Step Checklist - NetApp
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