Comprehensive Detailed Explanation with all CompTIA Server+ SK0-005 Study Guide References:If the fans are running at full speed, it may indicate that the CPU or system temperature is too high. This is often caused by a poorly attached or improperly seated heat sink, which prevents efficient heat dissipation. Reattaching the heat sink with proper thermal paste resolves the issue.
* A. Replace the PSU:Not relevant to temperature control.
* B. Reseat the video card:Would not affect fan speed unless a GPU temperature issue exists, which is not stated here.
* C. Reseat the RAM:Unrelated to fan operation.

The step that the server administrator should perform before resolving the issue is to determine the probable causes. This step is part of the troubleshooting process that follows a logical and systematic approach to identify and solve problems with servers and applications. The troubleshooting process consists of several steps, such as:
Identify the problem: Gather information from various sources, such as users, logs, or alerts, to understand the symptoms and scope of the problem.
Establish a theory of probable cause: Analyze the information and formulate one or more possible causes of the problem based on evidence or experience.
Test the theory to determine cause: Perform tests or experiments to verify or eliminate each possible cause until the root cause is found.
Establish a plan of action to resolve the problem and implement the solution: Design and execute a plan to fix the problem using appropriate tools and techniques.
Verify full system functionality and implement preventive measures: Confirm that the problem is resolved and that no other issues arise as a result of the solution. Implement preventive measures to avoid recurrence of the problem or improve performance.
Document findings, actions, and outcomes: Record the details of the problem, its cause, its solution, and its outcome for future reference or knowledge sharing. References: [CompTIA Server+ Certification Exam Objectives], Domain 6.0: Troubleshooting, Objective 6.1: Given a scenario involving server hardware issues (e.g., power supply failure), troubleshoot using appropriate tools.

The type of data replication that is required for a hot-site disaster recovery model is constant. A hot site is a type of disaster recovery site that has fully operational IT infrastructure and equipment that can take over the primary site's functions immediately in case of a disaster or disruption. A hot site requires constant data replication between the primary site and the hot site to ensure that the data is up-to-date and consistent.
Constant data replication means that any changes made to the data at the primary site are immediately copied to the hot site without any delay or lag.

* RAID 5 configuration: Using five of the available drives in a RAID 5 configuration meets the requirements for:
* Storage capacity: Four 600GB drives (2, 5, and 6) provide a total usable capacity of 2.4TB (4 *
600 * 0.8), exceeding the minimum requirement of 2TB. RAID 5 introduces parity data for fault tolerance, sacrificing some usable space (one drive's worth).
* Performance: The combination of multiple drives in a RAID 5 array improves read performance compared to a single drive setup.
* Fault tolerance: Even with a single drive failure (any of the five drives used in the RAID 5), the remaining drives can reconstruct the lost data, allowing the server to continue operating.

Explanation
The backup type that only records changes to the data blocks on a virtual machine is snapshot. A snapshot is a point-in-time copy of a virtual machine (VM) that captures the state and data of the VM at a specific moment.
A snapshot can be created instantly and with minimal overhead, as it only stores the changes made to the VM after the snapshot was taken. A snapshot can be used to restore the VM to its previous state in case of data loss or corruption.