Wireless Networks and Embedded Systems
Key Takeaways
Subdomain 4.1 names wireless (Wi-Fi, Bluetooth) and embedded systems (ICS, IoT) as network security concepts.
Wireless signals reach beyond the physical boundary of a building.
Embedded and IoT devices often need their own segment and monitoring.
Source: ISC2 CC Exam Outline effective September 1, 2026, subdomain 4.1, checked 2026-10-22.
Wireless
Subdomain 4.1 names wireless technologies, with Wi-Fi and Bluetooth as examples. Radio signals can reach beyond the walls of a building, so wireless access changes the security boundary. Authentication and encryption of the wireless link matter for that reason.
Source: ISC2 CC Exam Outline effective September 1, 2026 (v01/2026), subdomain 4.1, https://www.isc2.org/certifications/cc/cc-certification-exam-outline, checked 2026-10-22.
Embedded Systems and IoT
Subdomain 4.1 also names embedded systems, including Industrial Control Systems (ICS) and the Internet of Things (IoT). These devices often run on a network with other systems. A scenario about an IoT device should be answered with segmentation and monitoring, which the outline ties to network security architecture in subdomain 4.2.
What the Outline Lists for This Section
The outline names these items. Be able to explain each one in plain language and apply it to a short scenario:
- 4.1: Concepts (OSI model, TCP/IP model, IPv4, IPv6, VPN)
- 4.1: Firewalls (e.g., ports, applications)
- 4.1: Wireless (e.g., Wi-Fi, Bluetooth)
- 4.1: Embedded systems (e.g., Industrial Control System), Internet of Things (IoT)
Common Traps
A common trap is confusing a model with a protocol or device. The OSI and TCP/IP models describe layers; firewalls, wireless, and IP versions are the concepts the outline names.
Which network security concept does subdomain 4.1 name for embedded systems?
Industrial Control Systems and the Internet of Things
DNS name resolution, which maps host names to IP addresses
Wireless session key lifetime and rotation settings
Badge readers that log entry at a building door
Sections you finish are checked off in the contents.