N10-009 Domain 1: Networking Concepts

Which device operates at Layer 3 and routes between networks?

Multiple choice — select one answer

Answer choices

  1. a. OSI model
  2. b. Well-known ports in TCP/UDP (e.g., 80 HTTP)
  3. c. Router
  4. d. ::1/128

Architectural breakdown & explanation

Routers forward based on IP routing tables.

Correct answer(s): c. Router

Exam domain: Domain 1: Networking Concepts (24% weight on the official guide).

Official documentation & study links

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