Explanation
Reflective glass is an architectural reinforcement that attempts to conceal the interior of an organization by reflecting light and preventing outsiders from seeing inside. Reflective glass can also reduce heat and glare, and enhance the aesthetic appearance of a building. Reflective glass is often used in high-security facilities, such as data centers, government buildings, or corporate headquarters12
1: Server Architecture for CompTIA Server+ (SK0-004) | Pluralsight 2: Introducing the CompTIA Infrastructure Career Pathway

Explanation
The best solution to keep a copy of an important fileshare that can be used to restore the share as quickly as possible is to create a snapshot of the fileshare. A snapshot is a point-in-time copy of a file system or a volume that captures the state and data of the fileshare at a specific moment. A snapshot can be created instantly and with minimal overhead, as it only stores the changes made to the fileshare after the snapshot was taken. A snapshot can be used to restore the fileshare to its previous state in case of data loss or corruption.

Explanation
The port that should be disabled on the firewall is port 3389. Port 3389 is used by Remote Desktop Protocol (RDP), which is a protocol that allows remote access and control of a Windows system through a graphical user interface. RDP can pose a security risk if it is not properly configured or secured, as it can expose the system to unauthorized or malicious access from external sources. Therefore, port 3389 should be disabled on the firewall unless it is needed for legitimate purposes.
References: CompTIA Server+ SK0-005 Certification Study Guide, Chapter 3, Lesson 3.3, Objective 3.3

Explanation
These are the port numbers that must be configured on a host-based firewall for a server that needs to allow SSH, FTP, and LDAP traffic. A port number is a numerical identifier that specifies a communication endpoint for a network protocol or an application. A host-based firewall is a software tool that monitors and controls incoming and outgoing network traffic on a single host based on predefined rules. SSH (Secure Shell) is a protocol that allows secure remote access and file transfer over an encrypted connection. The default port number for SSH is 22. FTP (File Transfer Protocol) is a protocol that allows transferring files between hosts over a network connection. The default port number for FTP is 21. LDAP (Lightweight Directory Access Protocol) is a protocol that allows accessing and managing directory services over a network connection. The default port number for LDAP is 389. References:
https://www.howtogeek.com/190014/virtualization-basics-understanding-techniques-and-fundamentals/
https://www.howtogeek.com/220152/what-is-the-difference-between-127.0.0.1-and-0.0.0.0/
https://www.howtogeek.com/428483/what-is-end-to-end-encryption-and-why-does-it-matter/

Explanation
The company should also implement MFA on all the servers with encrypted data as a data loss prevention method. MFA stands for multi-factor authentication, which is a method of verifying a user's identity by requiring two or more pieces of evidence, such as something they know (e.g., a password), something they have (e.g., a token), or something they are (e.g., a fingerprint). MFA adds an extra layer of security to prevent unauthorized access to sensitive data, even if the user's password is compromised or stolen. Encrypting the hard drives on the servers protects the data from being read or copied if the drives are physically removed or stolen, but it does not prevent unauthorized access to the data if the user's credentials are valid.