Network
Also called: computer network
Course: AP® Cybersecurity Shows up in: Unit 3 PrimerUnit 3: Securing Networks
Two or more connected devices (hosts) that can exchange data, joined by cables or wireless links and devices such as switches and routers.
Appears in the course and exam description (CED): 3.1.B.2
Why it matters in Unit 3
Every Unit 3 attack and defense happens on a network: adversaries try to join it, listen to it or redirect its traffic, and defenders segment it, filter it with firewalls and monitor it.
Example
The laptops, printers and phones in one school, linked by switches and wireless access points, form a local area network (LAN). The internet is a network of networks, joined by routers.
Learn it properly, with a checkpoint Networks: hosts, packets and the devices that move themGo deeper: the professional references
Security professionals worldwide use these: the NIST glossary (the U.S. government's official security dictionary), MITRE ATT&CK (real attacker techniques), MITRE CWE (software weaknesses) and the internet's own standards (RFCs). They go beyond the AP® course, so use the definition above for the exam.