Restarting services can resolve issues with web applications without requiring a full server reboot, which aligns with the company policy.
* Restart services: Likely to resolve issues with the web application by refreshing the necessary services.
* Roll back Windows updates: Unnecessary if the issue is with the application services.
* Perform a Windows repair: More disruptive and not typically needed for application service issues.
* Add RAM to the server: Would require a reboot and is not immediately necessary for troubleshooting application issues.
Reference: CompTIA A+ Exam Objectives [220-1102] - 3.1: Given a scenario, troubleshoot common Windows OS problems.

The ext3 file system is a Linux native file system that meets the requirements of the question. It has the following features:
* All changes are tracked. The ext3 file system uses a journaling mechanism that records all changes to the file system metadata in a special log called the journal before applying them to the actual file system. This ensures that the file system can be restored to a consistent state in case of a power failure or system crash12.
* The possibility of file corruption is reduced. The journaling feature of ext3 also reduces the possibility of file corruption, as it avoids the need for a full file system check after an unclean shutdown. The file system can be quickly replayed from the journal and any inconsistencies can be fixed12.
* Data recovery is easy. The ext3 file system supports undeletion of files using tools such as ext3grep or extundelete, which can scan the file system for deleted inodes and attempt to recover the data blocks associated with them34.
References:
1: Introduction to Linux File System [Structure and Types] - MiniTool1 2: 7 Ways to Determine the File System Type in Linux (Ext2, Ext3 or Ext4) - Tecmint3 3: How to Recover Deleted Files in Linux with ext3grep 4: How to Recover Deleted Files from ext3 Partitions

MFA stands for Multi-Factor Authentication, which is a method of verifying a user's identity using two or more different factors of authentication. The three factors of authentication are something you know, something you have, and something you are. These factors correspond to different types of information or evidence that only the legitimate user should possess or provide. For example:
* Something you know: a password, a PIN, a security question, etc.
* Something you have: a smart card, a token, a mobile device, etc.
* Something you are: a fingerprint, a face, an iris, etc.
MFA provides a higher level of security than single-factor authentication, which only uses one factor, such as a password. MFA reduces the risk of unauthorized access, identity theft, and data breaches, as an attacker would need to compromise more than one factor to impersonate a user. MFA is commonly used for online banking, email accounts, cloud services, and other sensitive applications

Explanation
Default Apps should be used to ensure all PDF files open in Adobe Reader1

Explanation
Group Policy is a feature of Windows that allows administrators to centrally manage and apply policies and settings to computers and users on a domain. Group Policy can be used to create user profiles that include home directories and network printers for several new users, as well as other configurations such as security settings, desktop preferences, and software installation. Group Policy can save time and effort for the administrator by applying the same settings to multiple users at once. Access control, authentication application, and folder redirection are not the most efficient ways to create user profiles that include home directories and network printers for several new users.