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A subscription license is a type of license that grants the user the right to use a product or service for a fixed period of time, usually a year. The user pays a recurring fee, regardless of how much they use the product or service. Subscription licenses are common for cloud-based software and services, such as Microsoft 3651 or DocuSign2.

References = 1: Compare All Microsoft 365 Plans (Formerly Office 365) - Microsoft 2: DocuSign Pricing | eSignature Plans for Personal &

A sniffer (also known as a packet analyzer) is a tool that captures and inspects data packets traveling across the network. In this case, using a sniffer would help identify suspicious or malicious redirection of traffic, possibly caused by a man-in-the-middle attack, DNS hijacking, or malware.

Sniffer (Answer D): This tool will allow the senior administrator to inspect the network traffic and identify if and how requests to the anti-malware website are being intercepted or redirected.

Data loss prevention (Option A): DLP tools focus on preventing data leakage rather than analyzing traffic redirection.

File integrity monitor (Option B): This checks for unauthorized changes to files, which may not directly address network traffic redirection.

Port scanner (Option C): A port scanner would only identify open ports on devices, which is unrelated to the redirection issue.

CompTIA Server+ Reference:This topic is addressed under SK0-005 Objective 4.2: Explain server roles and their purposes.

The write cache is a feature of some RAID controllers that allows them to temporarily store data in a fast memory buffer before writing it to the disk drives. This improves the performance and efficiency of write operations, especially for random and small writes. However, if the battery on the controller goes bad, the controller may disable the write cache to prevent data loss in case of a power failure. This can degrade the disk drive performance significantly, as every write operation will have to wait for the disk drives to complete. References:

Memory and CPU are two metrics that can be used for monitoring system utilization. Memory refers to the amount of RAM that is available and used by the system and its processes. CPU refers to the percentage of processor time that is consumed by the system and its processes. Both memory and CPU can affect the performance and responsiveness of the system and its applications. Monitoring memory and CPU can help identify bottlenecks, resource contention, memory leaks, high load, etc.