Question

ŝŶƚĞƌŶĞƚ Ġ ƵŵĂ ƌĞĚĞ ĚĞ ĐŽŵƉƵƚĂĚŽƌĞƐ ƋƵĞ ŝŶƚĞƌĐŽŶĞĐƚĂŵŝůŚĂƌĞƐĚĞĚŝƐƉŽƐŝƟǀŽƐĐŽŵƉƵƚĂĐŝŽŶĂŝƐ ĂŽ ƌĞĚŽƌ ĚŽ ŵƵŶĚŽ͘ ,Ą ƉŽƵĐŽ ƚĞŵƉŽ͕ ĞƐƐĞƐ ĚŝƐƉŽƐŝƟǀŽƐ ĞƌĂŵ ďĂƐŝĐĂŵĞŶƚĞ ĐŽŵƉƵƚĂĚŽƌĞƐ ĚĞ ŵĞƐĂ͕ ĞƐƚĂĕƁĞƐ ĚĞ ƚƌĂďĂůŚŽ Ğ ŽƐ ƐĞƌǀŝĚŽƌĞƐ ƋƵĞ ĂƌŵĂǌĞŶĂŵĞƚƌĂŶƐŵŝƚĞŵŝŶĨŽƌŵĂĕƁĞƐ͕ĐŽŵŽƉĄŐŝŶĂƐ ĚĂǁĞďĞŵĞŶƐĂŐĞŶƐĚĞĞŵĂŝů͘EŽĞŶƚĂŶƚŽ͕ĐĂĚĂǀĞǌ ŵĂŝƐƐŝƐƚĞŵĂƐĮŶĂŝƐŵŽĚĞƌŶŽƐĚĂŝŶƚĞƌŶĞƚ͕ĐŽŵŽdsƐ͕ ůĂƉƚŽƉƐ͕ĐŽŶƐŽůĞƐƉĂƌĂũŽŐŽƐ͕ƐŵĂƌƚƉŚŽŶĞƐ͕ǁĞďĐĂŵƐ ĞĂƵƚŽŵſǀĞŝƐ͕ĞƐƚĆŽĐŽŶĞĐƚĂĚŽƐăƌĞĚĞ͘KƚĞƌŵŽƌĞĚĞ ĚĞ ĐŽŵƉƵƚĂĚŽƌĞƐ ĞƐƚĄ ĐŽŵĞĕĂŶĚŽ Ă ƐŽĂƌ Ƶŵ ƚĂŶƚŽ ĚĞƐĂƚƵĂůŝǌĂĚŽ͕ ĚĂĚŽƐ ŽƐ ŵƵŝƚŽƐ ĞƋƵŝƉĂŵĞŶƚŽƐ ŶĆŽ ƚƌĂĚŝĐŝŽŶĂŝƐƋƵĞĞƐƚĆŽůŝŐĂĚŽƐăŝŶƚĞƌŶĞƚ͘EŽũĂƌŐĆŽĚĂ ŝŶƚĞƌŶĞƚ͕ƚŽĚŽƐĞƐƐĞƐĞƋƵŝƉĂŵĞŶƚŽƐƐĆŽĚĞŶŽŵŝŶĂĚŽƐ ŚŽƐƉĞĚĞŝƌŽƐ ŽƵ ƐŝƐƚĞŵĂƐ ĮŶĂŝƐ ƋƵĞ ƐĆŽ ĐŽŶĞĐƚĂĚŽƐ ĞŶƚƌĞ Ɛŝ ƉŽƌ ĞŶůĂĐĞƐ ;linksͿ ĚĞ ĐŽŵƵŶŝĐĂĕĆŽ Ğ ĐŽŵƵƚĂĚŽƌĞƐĚĞƉĂĐŽƚĞƐ͘ <hZK^͕:͘&͖͘ZK^^͕<͘t͘ Redes de Computadores e a Internet: hŵĂďŽƌĚĂŐĞŵdŽƉͲŽǁŶ͘ϱĞĚ͘^ĆŽWĂƵůŽ͗ ĚĚŝƐŽŶtĞƐůĞǇ͕ϮϬϭϬ;ĂĚĂƉƚĂĚŽͿ͘ ĨƵŶĕĆŽĚĞĐŽŵƵƚĂĕĆŽĞŵƵŵĂƌĞĚĞĚĞĐŽŵƵŶŝĐĂĕĆŽ ƐĞ ƌĞĨĞƌĞ ĂŽ ƵƐŽ ĚŽƐ ƌĞĐƵƌƐŽƐ ĚŝƐƉŽŶşǀĞŝƐ ;ŵĞŝŽƐ ĚĞ ƚƌĂŶƐŵŝƐƐĆŽ͕ ƌŽƚĞĂĚŽƌĞƐ͕ switches Ğ ĞŶƚƌĞ ŽƵƚƌŽƐͿ ƉĂƌĂ ƉŽƐƐŝďŝůŝƚĂƌ Ă ƚƌĂŶƐŵŝƐƐĆŽ ĚĞ ĚĂĚŽƐ ƉĞůŽƐ ĚŝǀĞƌƐŽƐ ĚŝƐƉŽƐŝƟǀŽƐ ĐŽŶĞĐƚĂĚŽƐ͘ WĂƌĂ ŝƐƐŽ͕ ďĂƐŝĐĂŵĞŶƚĞ ĞǆŝƐƚĞŵ ĂůŐƵŵĂƐ ƚĠĐŶŝĐĂƐ ĐŽŵŽ͗ ĐŽŵƵƚĂĕĆŽĚĞĐŝƌĐƵŝƚŽƐ͕ĐŽŵƵƚĂĕĆŽĚĞŵĞŶƐĂŐĞŶƐĞ ĐŽŵƵƚĂĕĆŽĚĞƉĂĐŽƚĞƐ͘ ŵ ƌĞůĂĕĆŽ Ă ĚŝĨĞƌĞŶĕĂ ĞŶƚƌĞ ĂƐ ƚĠĐŶŝĐĂƐ ĚĞ ĐŽŵƵƚĂĕĆŽ ĚĞ ĐŝƌĐƵŝƚŽ Ğ ĐŽŵƵƚĂĕĆŽ ĚĞ ƉĂĐŽƚĞƐ͕ ĂƐƐŝŶĂůĞĂŽƉĕĆŽĐŽƌƌĞƚĂ͘

Accepted Answer

E) EĂ ĐŽŵƵƚĂĕĆŽ ĚĞ ĐŝƌĐƵŝƚŽƐ ŽĐŽƌƌĞ ƵŵĂ ƌĞƐĞƌǀĂ ĚĞůĂƌŐƵƌĂĚĞďĂŶĚĂĞŵƚŽĚŽŽƉĞƌĐƵƌƐŽ͕ĚĞƐĚĞ ŽƚƌĂŶƐŵŝƐƐŽƌĂƚĠŽƌĞĐĞƉƚŽƌĞƚŽĚŽƐŽƐƉĂĐŽƚĞƐ ƐĞŐƵĞŵĞƐƐĞĐĂŵŝŶŚŽ͘

Answer

A) EĂĐŽŵƵƚĂĕĆŽĚĞƉĂĐŽƚĞƐ͕ŽƐďŝƚƐƐŝŵƉůĞƐŵĞŶƚĞ ŇƵĞŵĚĞĨŽƌŵĂĐŽŶơŶƵĂƉĞůŽĮŽ͘

Answer

B) EĂ ĐŽŵƵƚĂĕĆŽ ĚĞ ĐŝƌĐƵŝƚŽƐ Ğ ŶĂ ĐŽŵƵƚĂĕĆŽ ĚĞ ƉĂĐŽƚĞƐĂƐƚƌĂŶƐŵŝƐƐƁĞƐƐĆŽŽƌŝĞŶƚĂĚĂƐăĐŽŶĞǆĆŽ͘

Answer

C) EĂĐŽŵƵƚĂĕĆŽĚĞƉĂĐŽƚĞƐŽĐŽƌƌĞƵŵĂƵŵĞŶƚŽŶĂ ůĂƌŐƵƌĂĚĞďĂŶĚĂ͕ƉŽƌĠŵĞƐƐĂƚĠĐŶŝĐĂŶĞĐĞƐƐŝƚĂĚĂ ĞǆŝƐƚġŶĐŝĂĚĞƵŵĐĂŵŝŶŚŽĚĞĚŝĐĂĚŽĞĞǆĐůƵƐŝǀŽ͘

Answer

D) EĂĐŽŵƵƚĂĕĆŽĚĞĐŝƌĐƵŝƚŽƐƵƟůŝǌĂͲƐĞĂƚƌĂŶƐŵŝƐƐĆŽ store-and-forward͕2 Ğŵ ƋƵĞ Ƶŵ ƉĂĐŽƚĞ Ġ ĂĐƵŵƵůĂĚŽŶĂŵĞŵſƌŝĂĚĞƵŵƌŽƚĞĂĚŽƌ͕ĞĚĞƉŽŝƐ ĠĞŶǀŝĂĚŽĂŽƌŽƚĞĂĚŽƌƐĞŐƵŝŶƚĞ͘

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