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平成29年度 秋期 ITパスポート試験 問4

This question's explanation and your answers so far.

問4
頻出度★★☆

電子商取引の商品と代金の受け渡しにおいて, 売り手と買い手の間に, 信頼のおける第三者が介在することによって, 取引の安全性を高めるサービスはどれか。

出典 平成29年度 秋期 ITパスポート試験 問4
解説

問 4

  • Incorrectア

    Affiliate marketing is a performance-based Internet advertising scheme: an advertisement (a product link) is placed on a website or blog, and when a product is sold through that link, a reward is paid to the person who posted it. It is a means of attracting customers and promoting sales, not a third-party intervention service that guarantees the safety of the exchange of payment and goods.

  • イ

    正解 The correct answer is イ, Escrow. An escrow service is a mechanism in electronic commerce in which the payment made by the buyer is first held temporarily by a trustworthy third party (an escrow operator) that is neither the seller nor the buyer; only after the goods have safely arrived and the buyer has confirmed receipt and inspection is the payment finally handed over to the seller. This removes distrust of the other party — such as paying but not receiving the goods, or shipping the goods but not being paid — and thereby raises the safety of the transaction. It matches exactly the question's description that a trustworthy third party intervenes between the seller and the buyer.

  • Incorrectウ

    A reverse auction is the opposite of an ordinary auction (in which the seller lists an item and buyers bid the price up): the buyer presents the conditions it wants, and multiple sellers compete on price and other terms. It is a price-determination mechanism for buying more cheaply, not a service that has a third party intervene to guarantee the delivery of payment and goods.

  • Incorrectエ

    A social networking service (SNS) is an online community service that supports connections between people and the posting and exchange of information. It has nothing to do with a mechanism in which a third party guarantees payment settlement and the safety of delivery in a transaction.

ここがポイント
  • Escrow service = a mechanism in which a trustworthy third party temporarily holds the payment and hands it to the seller only after receipt of the goods is confirmed, thereby raising the safety of EC (e-commerce) transactions.
  • Distinguishing confusing e-commerce terms: affiliate marketing (performance-based advertising), reverse auction (buyer-led price competition), and SNS (a communication service) — none of which provides a function that guarantees transaction safety.
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