A SOC Analyst cannot investigate network traffic effectively without understanding networking protocols. In this video, we explain how common network protocols work, their default port numbers, and how attackers may misuse them. You will also learn what suspicious protocol activity looks like inside SIEM alerts, firewall logs, and Wireshark captures. Protocols covered include: • TCP and UDP • ARP and ICMP • DNS and DHCP • HTTP and HTTPS • FTP and SFTP • SSH and Telnet • SMTP, POP3, and IMAP • SMB, RDP, SNMP, and LDAP We will use practical examples to explain DNS tunnelling, unusual outbound connections, insecure protocols, port scanning, suspicious RDP activity, and other indicators that SOC Analysts investigate. This video is ideal for aspiring SOC Analysts, cybersecurity beginners, network engineers, and students preparing for technical interviews. Subscribe to SikhoLive IT Trainings for practical SOC Analyst, cybersecurity, networking, SIEM, Splunk, and server administration training. Website: https://www.sikholive.com Trainer: Shesh Chauhan #NetworkProtocols #SOCAnalyst #CyberSecurity #NetworkSecurity #SikhoLive