Which of the following descriptions about elastic public IP are correct? (Multiple choice)

Question

Options

• AElastic public IP provides independent public IP resources, including public IP addresses and
• BElastic public IP can be flexibly bound and unbound to resources such as elastic cloud servers,
• CElastic public IP service only supports on-demand billing
• DElastic public IP can be added to shared bandwidth to reduce bandwidth usage costs

• A
  81% (26)
• C
  19% (6)

Explanation

Elastic public IP (EIP) is correctly described by options A, B, and D because it is designed as a flexible, independent network resource: it exists as a standalone public IP that is not tied to any single cloud resource (A), it can be dynamically associated and disassociated from resources like elastic cloud servers or NAT gateways as needed (B), and it supports shared bandwidth pools, which allows multiple EIPs to share a single bandwidth package and reduce overall costs (D).

Option C is wrong because Elastic public IP does not only support on-demand (pay-per-use) billing -- it also supports subscription (prepaid/annual/monthly) billing models, giving users flexibility in how they pay based on their usage patterns.

Memory tip: Think of an EIP like a portable phone number -- you own it independently (A), you can move it between devices whenever you want (B), you can put multiple numbers on a shared plan to save money (D), and like phone plans, you can pay monthly or by the minute, so billing is never limited to just one option (why C is wrong).

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