SY0-701 Reviews Questions

The best answer is A. Zero-day.

A zero-day vulnerability is a newly discovered vulnerability for which no patch or official fix is yet available. Because defenders have had zero days to fully remediate it, attackers may be able to exploit it before a vendor releases a patch.

The question specifically states that the vulnerability is new and does not have an available patch, which is the defining clue.

Why the other options are incorrect:

B. XSSCross-site scripting is a specific web application attack type, not a description of whether a patch exists.

C. SQLiSQL injection is also a specific attack type, not the broader vulnerability status being asked about.

D. Buffer overflowBuffer overflow is a type of coding flaw, but again it does not specifically describe the condition of having no patch available.

From a Security+ perspective, when a vulnerability is newly identified and lacks a vendor fix, it is best described as a zero-day.

Input sanitization is a critical security measure to prevent SQL injection attacks, which occur when an attacker exploits vulnerabilities in a website ' s input fields to execute malicious SQL code. By properly sanitizing and validating all user inputs, developers can prevent malicious code from being executed, thereby securing the website against such attacks.

References = CompTIA Security+ SY0-701 study materials, particularly in the domain of web application security and common vulnerability mitigation strategies​​.

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.

Internal audits are conducted within an organization to independently assess and evaluate the effectiveness of internal controls, policies, and procedures. A key benefit of internal audits is the identification of control gaps or weaknesses that can then be remediated before they lead to security incidents or compliance failures.

Unlike external audits, internal audit findings are primarily for management and internal stakeholders, focusing on improving security posture and operational efficiency. Reports generated are formal and documented to ensure accountability, and internal audits do not replace the need for external audits, which provide independent verification to external parties like regulators or shareholders.

This role of internal audits in identifying deficiencies and driving remediation efforts is emphasized in the Security Program Management and Oversight domain of the SY0-701 exam【7:Chapter 5†CompTIA Security+ Practice Tests】.