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C (1.2)

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A, , , , A

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, , , , ,

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,

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, C ,

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F B

H B

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(2)

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A

C

,

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: I2

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E

C

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F (802.11) E / E

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C / D / (2G, 3G, 4G)

B

...

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Scale Type Example

Vicinity PAN (Personal Area Network) Bluetooth (e.g., headset)

Building LAN (Local Area Network) WiFi, Ethernet

City MAN (Metropolitan Area Network) Cable, DSL

Country WAN (Wide Area Network) Large ISP

Planet The Internet (network of all networks) The Internet!

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C 14

I

A , ,

J

I ( I)

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B

?

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B (2)

I?

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B (3)

C

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K I B (1) ,

(2)

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K I (2)1.

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2.

K I (3)

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ED

2013 D.

: AEBA, ADE .; EHEA, DAID J., CE EK, 5 E, 2011.

E E, I., , J

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