符合以下：
| List-I: Layer Name | List-II: Decryption |
|---|---|
| (P) Presentation | (1) Manages the transfer of data. Also assures that the received data are identical to the transmitted data. |
| (Q) Session | (2) Ensures that information is delivered to the receiving machine in a form that the machine can understand. |
| (R) Transport | (3) Manages data addressing and delivery between networks. |
| (S) Network | (4) Manages the connections and terminations between cooperating computers. |
| (T) Data Link | (5) Handles the transfer of data across the network media. |
(A) P – 2，Q – 1，R – 3，S – 5，S – 4
(B) P – 1，Q – 4，R – 2，S – 3，S – 5
(C) P – 1，Q – 4，R – 2，S – 5，S – 3
(D) P – 2，Q – 4，R – 1，S – 3，S – 5答案： (D)
解释：
| Layer Name | Description |
|---|---|
| Application | Consists of standard communication services and applications that everyone can use. |
| Presentation | Ensures that information is delivered to the receiving machine in a form that the machine can understand. |
| Session | Manages the connections and terminations between cooperating computers. |
| Transport | Manages the transfer of data. Also assures that the received data are identical to the transmitted data. |
| Network | Manages data addressing and delivery between networks. |
| Data Link | Handles the transfer of data across the network media. |
| Physical | Defines the characteristics of the network hardware. |
因此，正确的匹配是P – 2，Q – 4，R – 1，S – 3，S – 5。
选项(D)是正确的。
这个问题的测验