You are configuring a network firewall to allow SMTP outbound email traffic, and POP3 inbound email traffic. Which of the following TCP/IP ports should you open on the firewall?

The TestOut Network Pro certification measures your ability to perform tasks commonly performed by IT network professionals, including systems administrators, network administrators, network engineers and related careers. This certification covers the topics in CompTIA Network+ (N10-007) certification. The Testout Network pro certification syllabus covers multiple operating systems, including: Windows Client, Windows Server, macOS, Enterprise Wireless configuration, and Cisco Command-Line interface (routers and switches).