https://www.linkedin.com/learning/sscp-cert-prep-6-networks-and-communications-security-14616267

The Systems Security Certified Practitioner (SSCP) certification is an excellent entry point to a career in IT security. 

To help you prepare for the SSCP exam, instructor Mike Chapple has designed a series of courses covering each domain. In this installment, Mike covers the objectives of the sixth domain, Network and Communications Security. Topics include TCP/IP networking, configuring network security devices, and identifying the different types of network attacks. Plus, learn how to secure your network with firewall rules, switch and router configuration, and network monitoring; protect your telecommunications; and understand the unique features and vulnerabilities of wireless networks.