QSFP+ (Quad Small Form-Factor Pluggable Plus): This transceiver type is designed specifically to handle 40Gbps network speeds. QSFP+ connectors are hot-swappable and support various cable types, including fiber optic and copper (DAC).
10GigE: While a valid network technology, 10GigE only supports up to 10Gbps, not the required 40Gbps.
SFP (Small Form-factor Pluggable): A common transceiver type, but the standard SFP only supports a maximum of 1Gbps.
SFP+ (Enhanced Small Form-factor Pluggable): Supports up to 10Gbps, not sufficient for 40Gbps in this scenario.
Reference:
CompTIA Server+ Objectives (Exam codes SK0-004 or SK0-005): Search for sections on networking standards and transceiver types.

Scripts are written using a shell language. The shell is the server's command-line environment.
The default shell for Linux is bash. Windows has two shells: cmd.exe and PowerShell, although Microsoft emphasizes PowerShell. As a general rule, a script written for one shell, such as PowerShell, will not be understood by another shell, such as bash. The system must have the appropriate shell installed to process the script.
Bash script -- a script written in bash language that contains commands, variables, constructs, and other components. Bash scripts are almost always written for Linux systems.
VBS script -- a script written in the VBScript language. Microsoft has deprecated VBScript, but there have been many VBScript scripts written over the years. VBScript scripts are almost always written for Windows systems.

Explanation
The server administrator should close port 3389 and rerun the scan. Port 3389 is used for Remote Desktop Protocol (RDP), which allows remote access and control of a server. RDP is vulnerable to brute-force attacks, credential theft, and malware infection. Closing port 3389 can prevent unauthorized access and improve the security of the server. The other ports are not as risky as port 3389 and can be left open for legitimate purposes. References: CompTIA Server+ Certification Exam Objectives, Domain 5.0: Security, Objective 5.4:
Given a scenario, implement proper environmental controls and techniques.