CompTIA SY0-701 - CompTIA Security+ Exam 2026

Quantitative risk analysis involves assigning numeric values to risk components, such as potential financial losses. Estimating the replacement cost of a physical server is part of calculating the potential impact and exposure during this process.

Disaster recovery tests (B) validate recovery procedures, physical security controls review (C) assesses physical protections, and threat modeling (D) identifies potential threats and attack vectors.

Quantitative analysis is a key part of risk management addressed in the SY0-701 Risk Management domain【6:Chapter 17†CompTIA Security+ Study Guide】

Secure Shell (SSH) is a protocol used for secure command-line access to remote systems, while Secure File Transfer Protocol (SFTP) is an extension of SSH used specifically for securely transferring files. Both SSH and SFTP ensure that data is encrypted during transmission, protecting it from interception or tampering.

References =

CompTIA Security+ SY0-701 Course Content: Domain 03 Security Architecture​.

CompTIA Security+ SY0-601 Study Guide: Chapter on Secure Protocols and Encryption​.

Dumpster diving is an attack method where attackers search through physical waste, such as discarded documents and printouts, to find sensitive information that has not been properly disposed of. In the context of printing centers, this could involve attackers retrieving printed documents containing confidential data that were improperly discarded without shredding or other secure disposal methods. This emphasizes the importance of proper disposal and physical security measures in cyber hygiene practices.

References =

CompTIA Security+ SY0-701 Course Content: Domain 04 Security Operations​.

CompTIA Security+ SY0-601 Study Guide: Chapter on Physical Security and Cyber Hygiene​.

When multiple Wireless Access Points (WAPs) are using similar frequencies with high power settings, it can cause channel overlap, leading to interference and connectivity issues. This is likely the reason why mobile users are unable to access the internet in the lobby. Evaluating and adjusting the channel settings on the WAPs to avoid overlap is crucial to resolving the connectivity problems.

References = CompTIA Security+ SY0-701 study materials, particularly the domain on Wireless and Mobile Security, which covers WLAN deployment considerations​​.

Implementing playbooks as part of a SOAR (Security Orchestration, Automation, and Response) platform enables the automation of routine security tasks and the standardized response to common alerts. Playbooks help filter and validate alerts, reducing the number of false positives that analysts need to manually investigate. SOAR tools are specifically designed to improve efficiency, consistency, and accuracy in incident response, allowing analysts to focus on genuine threats rather than being overwhelmed by noise.

Confidentiality is the security concept that ensures data is protected from unauthorized access or disclosure. The principle of least privilege is a technique that grants users or systems the minimum level of access or permissions that they need to perform their tasks, and nothing more. By applying the principle of least privilege to a human resources fileshare, the permissions can be restricted to only those who have a legitimate need to access the sensitive data, such as HR staff, managers, or auditors. This can prevent unauthorized users, such as hackers, employees, or contractors, from accessing, copying, modifying, or deleting the data. Therefore, the principle of least privilege can enhance the confidentiality of the data on the fileshare. Integrity, availability, and non-repudiation are other security concepts, but they are not the best reason for permissions on a human resources fileshare to follow the principle of least privilege. Integrity is the security concept that ensures data is accurate and consistent, and protected from unauthorized modification or corruption. Availability is the security concept that ensures data is accessible and usable by authorized users or systems when needed. Non-repudiation is the security concept that ensures the authenticity and accountability of data and actions, and prevents the denial of involvement or responsibility. While these concepts are also important for data security, they are not directly related to the level of access or permissions granted to users or systems. References: CompTIA Security+ Study Guide: Exam SY0-701, 9th Edition, page 16-17, 372-373

A VPN (Virtual Private Network) is a secure method to provide employees with remote access to a company ' s network. It encrypts data, protecting it from interception and ensuring secure communication between the user and the internal network.References: Security+ SY0-701 Course Content​, Security+ SY0-601 Book​.

Systems that control physical industrial processes—such as pumping gas, water control, electrical grids, or manufacturing lines—fall under SCADA (Supervisory Control and Data Acquisition) environments. SCADA systems are part of larger OT (Operational Technology) infrastructures and manage sensors, actuators, valves, flow controls, and telemetry.

CompTIA Security+ SY0-701 explains that SCADA environments typically:

Use legacy protocols (e.g., Modbus, DNP3)

Require high availability

Often run outdated operating systems

Have control systems that cannot easily be patched

Require specialized segmentation and monitoring

This exactly matches the scenario describing a “specialized legacy platform controlling gas flow inside pipes.”

IaaS (A) is cloud infrastructure and unrelated to industrial control. SDN (C) relates to software-defined networking, not physical industrial controls. IoT (D) includes smart devices but is not typically used for large-scale industrial gas control.

Thus, securing SCADA is the correct answer.

Side loading is the process of installing software outside of a manufacturer’s approved software repository. This can expose the device to potential vulnerabilities, such as malware, spyware, or unauthorized access. Side loading can also bypass security controls and policies that are enforced by the manufacturer or the organization. Side loading is often done by users who want to access applications or features that are not available or allowed on their devices. References = Sideloading - CompTIA Security + Video Training | Interface Technical Training, Security+ (Plus) Certification | CompTIA IT Certifications, Load Balancers – CompTIA Security+ SY0-501 – 2.1, CompTIA Security+ SY0-601 Certification Study Guide.

Comprehensive and Detailed Explanation From Exact Extract:

End-of-life (EOL) systems no longer receive security patches, vendor support, or vulnerability updates. Because of this, they are highly susceptible to exploitation, especially if attackers can reach them over a network. When the system is business-critical and cannot be decommissioned, the most effective strategy is isolation, also known as network segmentation, air-gapping, or restrictive network zoning. Isolation removes direct exposure to external and internal threats by limiting communication paths to only essential systems and users.

According to the Security+ SY0-701 guidance, isolating legacy systems helps reduce the attack surface when patching is no longer possible. Monitoring (A) is useful for detection but does not prevent exploitation. Decommissioning (C) would be ideal but is not possible for business-critical systems, as stated in the question. Encryption (D) protects data confidentiality but does not stop an attacker from exploiting vulnerabilities in an unpatched OS or application.

Isolation is a recommended compensating control for legacy and unsupported systems in SY0-701’s Security Architecture & Resilience domain, which emphasizes micro-segmentation, firewalls, and restricted access to minimize risk when systems cannot be replaced or patched.

The best answer is C. Software is migrated to a cloud that offers increased flexibility in its updates.

A change management policy defines how changes are requested, reviewed, approved, tested, documented, and implemented. When an organization migrates software to a cloud environment that supports more dynamic, frequent, or automated updates, the change management process may need to be revised to reflect the new operational model.

Cloud environments often introduce:

faster deployment cycles

infrastructure as code

automated updates

continuous integration and continuous delivery

different approval and rollback processes

These changes can significantly affect how the organization governs system changes, so revising the policy is likely necessary.

Why the other options are incorrect:

A. An engineer adds a new feature to the production service.This is an example of a change that should follow policy, not necessarily a reason to revise the policy itself.

B. A production server continuously runs at its maximum load.This is more of a performance or capacity issue than a direct reason to revise change management policy.

D. A legacy server lacks support for new regulatory requirements.This points more toward compliance remediation or system replacement, not specifically revising change management policy.

From the SY0-701 perspective, major shifts in how systems are updated and maintained, especially through cloud adoption, are strong reasons to update change management governance. Therefore, C is correct.

This is a classic example of Business Email Compromise (BEC), where attackers spoof or compromise trusted email accounts to trick employees into performing unauthorized financial transactions.

Vishing (B) is voice phishing, spear phishing (C) targets individuals with customized messages, and impersonation (D) is a general term for identity deception but BEC specifically describes financial fraud via email.

BEC is a major threat covered in the Threats domain of SY0-701【6:Chapter 2†CompTIA Security+ Study Guide】

Software as a Service (SaaS) represents an application that is hosted in the cloud and accessible via the internet from anywhere, with no requirement for on-premises infrastructure. SaaS applications are managed by a third-party provider, allowing users to access them through a web browser, making them highly scalable and flexible for remote access.

Cross-site scripting (XSS) is the correct answer because the attack injects HTML content into a web application. XSS occurs when an application accepts untrusted input and renders it in a browser without proper validation, sanitization, or output encoding. Injected tags, scripts, event handlers, or external resource references can cause a victim’s browser to execute or load attacker-controlled content. Directory traversal attempts to access unauthorized file paths, usually using patterns like ../. Buffer overflow abuses memory handling errors. SQL injection targets backend database queries. The given payload is web-content injection, not a database or memory exploit. Security+ expects recognition of XSS from injected HTML or JavaScript in web application output.

The best reason to disable unused ports and services is to limit the attack surface area. An externally facing DNS server is exposed to untrusted networks, so every unnecessary service, listener, protocol, or open port becomes another possible path for exploitation. Hardening the server by disabling unused services reduces opportunities for attackers to discover vulnerable software, abuse misconfigurations, or pivot into the environment. This does not remove the need for patching; all remaining software must still be maintained. Blocking ports at the firewall is useful, but host-level hardening is still required because firewall rules can be misconfigured or bypassed internally. Conserving memory is not the security objective. Attack surface reduction is the correct rationale.

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A false positive is a result that indicates a vulnerability or a problem when there is none. In this case, the vulnerability scanning report shows that the telnet service on port 23 is open and uses an insecure network protocol. However, the security analyst performs a test using nmap and a script that checks for telnet encryption support. The result shows that the telnet server supports encryption, which means that the data transmitted between the client and the server can be protected from eavesdropping. Therefore, the reported vulnerability is a false positive and does not reflect the actual security posture of the server. The security analyst should verify the encryption settings of the telnet server and client and ensure that they are configured properly3. References: 3: Telnet Protocol - Can You Encrypt Telnet?

 A geolocation policy is a policy that restricts or allows access to data or resources based on the geographic location of the user or device. A geolocation policy can be implemented using various methods, such as IP address filtering, GPS tracking, or geofencing. A geolocation policy can help the company’s legal department to prevent unauthorized access to sensitive documents from individuals in high-risk countries12.

The other options are not effective ways to limit access based on location:

Data masking: This is a technique of obscuring or replacing sensitive data with fictitious or anonymized data. Data masking can protect the privacy and confidentiality of data, but it does not prevent access to data based on location3.

Encryption: This is a process of transforming data into an unreadable format using a secret key or algorithm. Encryption can protect the integrity and confidentiality of data, but it does not prevent access to data based on location. Encryption can also be bypassed by attackers who have the decryption key or method4.

Data sovereignty regulation: This is a set of laws or rules that govern the storage, processing, and transfer of data within a specific jurisdiction or country. Data sovereignty regulation can affect the availability and compliance of data, but it does not prevent access to data based on location. Data sovereignty regulation can also vary depending on the country or region.

References = 1: CompTIA Security+ SY0-701 Certification Study Guide, page 972: Account Policies – SY0-601 CompTIA Security+ : 3.7, video by Professor Messer3: CompTIA Security+ SY0-701 Certification Study Guide, page 1004: CompTIA Security+ SY0-701 Certification Study Guide, page 101. : CompTIA Security+ SY0-701 Certification Study Guide, page 102.