Copper = electricity; Fiber = light; WiFi = radio through the air.
1. Which network medium transmits data over radio waves through the air?
2. Which statement best describes fiber optic cable as a network medium?
3. What is the main difference between a Permanent Link and a Channel Link in structured Ethernet cabling?
Network media — types?
Wired (copper, fiber), wireless (radio, optical)
Ethernet standards — max length?
Typically 100 meters for 100 Mbit/s and 1 Gbit/s
Copper cable — structure?
Twisted pairs within a protective sheath, categorized by CAT levels
Network topologies — tradeoffs?
Star: high availability, single point failure; Ring: fault tolerance, complex
Structured cabling — ISO levels?
Levels include Primary, Secondary, Tertiary; organized by building components
Computer network — scope?
Interconnected devices sharing resources, services, data exchange
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