ISC2 · ISC2 CC
Networking concepts
ISC2 CC · Lesson 10 of 16 · 1:16:49
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In this lesson
Prepare for the ISC2 Certified in Cybersecurity (CC) exam, on the 2026 outline. In this lesson: the OSI and TCP/IP models, IPv4 and IPv6 addresses, common ports and protocols, and virtual private networks. Includes three original practice questions, with Maplewood Schools, a fictional school district, as the example.
Preview the topics
- Routers forward packets between networks, using IP addresses. At which layer of the OSI model do they work?
- Parents reach the Maplewood portal through encrypted web traffic. Which port must the firewall allow?
- Maplewood wants each school’s network connected to the central office over the internet, encrypted, at all times. Which solution fits?