CompTIA Security+ SY0-701 Release Date

Encryption at rest is a strategy that protects data stored on a device, such as a laptop, by converting it into an unreadable format that can only be accessed with a decryption key or password. Encryption at rest can prevent data loss on stolen laptops by preventing unauthorized access to the data, even if the device is physically compromised. Encryption at rest can also help comply with data privacy regulations and standards that require data protection. Masking, data classification, and permission restrictions are other strategies that can help protect data, but they may not be sufficient or applicable for data stored on laptops. Masking is a technique that obscures sensitive data elements, such as credit card numbers, with random characters or symbols, but it is usually used for data in transit or in use, not at rest. Data classification is a process that assigns labels to data based on its sensitivity and business impact, but it does not protect the data itself. Permission restrictions are rules that define who can access, modify, or delete data, but they may not prevent unauthorized access if the laptop is stolen and the security controls are bypassed. References: CompTIA Security+ Study Guide: Exam SY0-701, 9th Edition, page 17-18, 372-373

For extended power failures, the best safeguard is a generator. CompTIA Security+ SY0-701 emphasizes that generators are designed to provide long-term, sustained power, unlike UPS systems, which only supply temporary emergency power.

Generators ensure that critical operations—including data centers, communication systems, and security infrastructure—stay online for hours or days, depending on fuel capacity. This matches the requirement for mitigating “extended” outages.

UPS units (C) protect against short-term outages and provide time for graceful shutdown or generator startup, but cannot support prolonged power consumption. Batteries (B) provide the least protection and run out quickly. Off-site backups (A) do not maintain operational continuity; they simply preserve data.

Disaster recovery and business continuity planning in SY0-701 highlights generators as essential components for maintaining availability, a core principle of the CIA triad. Generators prevent downtime, maintain productivity, and keep essential systems functioning throughout prolonged outages, making D the best answer.

File Integrity Monitoring (FIM) detects unauthorized changes to files, including deletions, modifications, and permission alterations. When protecting shared data, FIM creates baseline hashes of files and monitors them for unexpected changes. Any deviation triggers alerts, enabling rapid investigation and remediation.

Security+ SY0-701 identifies FIM as a crucial tool for:

Integrity monitoring

Detecting unauthorized file deletion

Identifying malicious or accidental permission changes

Supporting compliance (PCI-DSS, HIPAA, etc.)

DLP (A) protects against data leakage but does not detect permission misconfiguration or deleted files. EDR (B) monitors endpoint activity but is not optimized for shared file integrity. ACL (D) defines permissions but does not track changes.

Thus, C (FIM) is the correct solution.