Secure Shell (SSH).  Purpose: Provides secure encrypted communication and remote…

 File Transfer Protocol (FTP).  Purpose: Facilitates the transfer of files…

 Message Send Protocol (MSP). Purpose: Message Send Protocol is a…

ECHO (also known as ICMP Echo). Purpose: ECHO is primarily…

Remote Job Entry (RJE). Purpose: Facilitates the submission and execution…

TCPMUX (TCP Multiplexer). Purpose: Allows multiple services to share a…

 MySQL Database System Purpose: Database management, storing and retrieving structured…

Microsoft SQL Server (MSSQL) Purpose: Database management, storing and retrieving…

 Lightweight Directory Access Protocol (LDAP) Purpose: Directory services, user authentication,…

Hypertext Transfer Protocol (HTTP) Purpose: Web browsing, serving web pages.…