LANs and WANs - Crossword

Clues

1. Network that covers a small area such as a single building (3)
2. Network that connects smaller networks over a large area such as between countries (3)
3. Two or more computers connected together to share resources (7)
4. A computer that works on its own without connecting to others (10)
5. Type of cable that carries data as pulses of light (10)
6. Connection method that sends signals to and from space (9)
7. The largest example of a wide area network (8)