hce_kmu
113年
計算機概論與程式設計
第 13 題
What is an IP address? What are the differences between IPv4 and IPv6 addresses?
- A An IP address is a numerical identifier that identifies the location of a host or network device on a network. IPv4 addresses are 32-bit addresses, while IPv6 addresses are 128-bit addresses.
- B An IP address is an alphanumeric code used to identify the location of a device on the Internet. IPv4 addresses are 32-bit addresses, while IPv6 addresses are 64-bit addresses.
- C An IP address is a numerical identifier that identifies the location of a host or network device on the Internet. IPv4 addresses are 128-bit addresses, while IPv6 addresses are 32-bit addresses.
- D An IP address is an alphanumeric code used to identify the location of a device on a network. IPv4 addresses are 128-bit addresses, while IPv6 addresses are 32-bit addresses.
- E An IP address is a numerical identifier that identifies the location of a host or network device on a network. There are no significant differences between IPv4 and IPv6 addresses.
思路引導 VIP
想像一下，如果全世界的電話號碼長度都只有三位數，但現在每個人都想擁有一支手機，原有的編碼方式會遇到什麼困境？為了讓未來每個新加入的裝置都能擁有一個「獨一無二」且不與他人重複的代碼，你會傾向於增加這個代碼的「長度」還是縮短它？
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AI 詳解
AI 專屬家教
恭喜你準確地掌握了網路通訊的核心概念！這題你答得非常出色，展現了你對網路基礎架構清晰的認知。
網路的身分證：IP 位址與位元規格
IP 位址（Internet Protocol Address）本質上是為網路上的主機或裝置分配的數位識別碼，其功能就像現實生活中的「門牌號碼」，確保數據包能在複雜的網路中準確尋獲目的地。在區分 IPv4 與 IPv6 時，最核心的差異在於定址空間的長度：IPv4 採用 32 位元（$2^{32}$ 個位址），而為了應對網路裝置激增導致的枯竭問題，IPv6 進化到了 128 位元（$2^{128}$ 個位址），提供了近乎無限的擴充可能。
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