The best answer is A. Internal self-assessment.
A gap analysis is used to compare the organization's current security, compliance, or control posture against a required standard, framework, or regulatory requirement. If the company wants to do this in the most cost- effective way, an internal self-assessment is the best choice because it allows the organization to review its own policies, procedures, controls, and documentation without the added expense of external testing or specialized attack simulations.
Why the other options are incorrect:
B). Active reconnaissanceActive reconnaissance involves directly interacting with systems to gather information, often as part of security testing or attack emulation. It is not the best option for a compliance- focused gap analysis.
C). Red team penetration testA red team exercise is more advanced and expensive. It simulates real-world attacks to test detection and response capabilities. This is valuable for security maturity, but it is not the most cost-effective method for identifying compliance gaps before an audit.
D). Tabletop exerciseA tabletop exercise is a discussion-based activity used to test incident response plans, communication, and decision-making. It does not primarily identify regulatory compliance gaps.
From a Security+ perspective, self-assessments, audits, and gap analyses are part of governance, risk, and compliance activities. For a low-cost review against regulatory requirements, internal self-assessment is the most appropriate answer.

The correct answer is Wired because Network Access Control (NAC) platforms are primarily designed to control and secure access to an organization's wired and wireless network infrastructure, with a strong emphasis on enforcing policies at the point where devices connect to the network. In the context of the Security+ SY0-701 objectives, NAC is a key architectural control used to reduce attack surface by preventing unauthorized, unmanaged, or noncompliant devices from gaining network access.
A NAC solution works by authenticating and evaluating devices before granting them access to network resources. This commonly includes checking device identity, credentials, patch levels, antivirus status, and compliance with security policies. For wired networks, NAC enforces controls at switch ports using technologies such as 802.1X, ensuring that only approved devices can connect to internal networks. This directly protects the wired attack surface by stopping threats like rogue devices, compromised laptops, or unauthorized systems from plugging into an Ethernet port and gaining access.
Option A, Bluetooth, is incorrect because NAC platforms do not directly manage short-range personal area network technologies. Option C, NFC, is also incorrect because NFC is typically used for proximity-based authentication or payments and is outside the scope of NAC enforcement. Option D, SCADA, refers to industrial control systems, which require specialized security controls and are not the primary target of standard enterprise NAC solutions.
The SY0-701 study guide highlights NAC as a preventive and detective control that supports zero trust principles by verifying devices before allowing access. By securing the wired network attack surface, NAC significantly reduces lateral movement opportunities and limits the impact of compromised or unauthorized endpoints following a security incident.

The most appropriate method is to use aGroup Policy Object (GPO) with time-of-day restrictions (A). This is a native capability in Windows environments that allows administrators to controlwhen users are allowed to log into domain-joined systems.
This aligns withDomain 3.1: Given a scenario, apply identity and access management (IAM) concepts, especially under"Access controls (e.g., time-based restrictions, GPOs, least privilege)." Reference: CompTIA Security+ SY0-701 Objectives, Domain 3.1 - "Access controls: Time-based restrictions, GPO."

The best answer is C. Execute the file in a sandbox.
Antivirus alone may miss new, obfuscated, or modified malware, including ransomware. A sandbox provides an isolated environment where the file can be safely executed and observed for malicious behavior such as:
file encryption activity
process spawning
registry changes
network callbacks
persistence attempts
Why the other options are incorrect:
A). Review the file in a code editor.Many malicious files are compiled, packed, or obfuscated, so this is not a reliable analysis method.
B). Monitor the file connections with netstat -ano.This only shows network connections and would not fully reveal ransomware behavior.
D). Retrieve the file hash and check with OSINT.This helps only if the malware is already known. New variants may not match existing threat intelligence.
From a SY0-701 perspective, dynamic analysis in a sandbox is the strongest step for safely identifying malicious file behavior.

A tabletop exercise simulates incident scenarios to test and validate the effectiveness of an organization's Incident Response Plan (IRP), identifying gaps and areas needing updates. It promotes team readiness without disrupting operations.
Addressing audit findings (A), collecting remediation times (B), and calculating ROI (D) are separate activities and not the primary purpose of tabletop exercises.
This practice is an integral part of Security Operations and Incident Response training in SY0-701#6:Chapter
14 CompTIA Security+ Study Guide#.