URL encoding, also known as percent-encoding, is a mechanism for encoding information in a Uniform Resource Identifier (URI) under certain circumstances. When characters are not allowed in a URI, they are replaced with a percent sign (%) followed by two hexadecimal digits that represent the ASCII code of the character. For example, a space character is not allowed in a URI and is replaced with %20.
References:The answer is verified as per the EC-Council's Certified SOC Analyst (CSA) course materials and study guides, which discuss various encoding schemes used in cybersecurity practices. URL encoding is specifically mentioned as the method for replacing unusual ASCII characters with a percent sign followed by two hexadecimal digits123.

In the context of Windows logs, the event severity level that indicates events that are not necessarily significant but may point to a possible future problem is classified as a "Warning." This level is used to log events that are not immediately harmful, such as an impending disk space shortage or other conditions that could potentially cause problems if not addressed.
References: The EC-Council's Certified SOC Analyst (CSA) program covers the fundamentals of SOC operations, including log management and correlation, which would encompass understanding the severity levels of events in Windows logs1. Additionally, the discussion on the ExamTopics website corroborates that the answer to this question is "Warning"2. Further general information on Windows event logging can be found in resources like Sumo Logic's guide to Windows Event Logging3 and other incident response guides that discuss the importance of monitoring event severity levels within a SOC4.

After collecting the evidence in a forensic investigation, the next critical step is to create a Chain of Custody Document. This document is essential as it records the evidence's chronological history, detailing every person who handled the evidence, the date/time it was collected, transferred, analyzed, or otherwise processed.
This ensures the integrity and security of the evidence, maintaining its admissibility in legal proceedings.
References:
* EC-Council's Computer Forensics Investigation Process1
* EC-Council iLabs Computer Forensics Investigation Process2
* InfraExam 2024, Certified SOC Analyst Part 013
* Digital forensics best practices from various sources4
* Free EC-Council CSA Sample Questions and Study Guide | EDUSUM5