Registered ports: Port numbers ranging from 1024 to 49151 that are reserved for specific well-known services in networking. Examples include HTTP on port 80, HTTPS on port 443, SMTP on port 25, DNS on port 53, and RDP on port 3389.
Categories: CC D4: Network Security | CCSP D3: Cloud Platform and Infrastructure Security | CISM D3: Information Security Program | CISSP D4: Communication and Network Security | Security+ D3: Security Architecture | SSCP D6: Network and Communication Security
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