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osi模型:七层模型介绍

1) Which layer of the OSI model is responsible for bit synchronization?
  1. Data Link Layer

  2. Network Layer

  3. Physical Layer

  4. Transport Layer

Answer & Explanation

Correct answer: 3
Physical Layer

Explanation:

The physical layer is responsible for bit synchronization.

1)OSI模型的哪一层负责位同步?
  1. 数据链路层

  2. 网络层

  3. 物理层

  4. 传输层

答案与解释

正确答案:3
物理层

说明:

物理层负责位同步。

2) Which layer of the OSI model is responsible for segmentation and reassembly?
  1. Data Link Layer

  2. Network Layer

  3. Physical Layer

  4. Transport Layer

Answer & Explanation

Correct answer: 4
Transport Layer

Explanation:

The transport layer is responsible for segmentation and reassembly.

2)OSI模型的哪一层负责分段和重组?
  1. 数据链路层

  2. 网络层

  3. 物理层

  4. 传输层

答案与解释

正确答案:4
传输层

说明:

传输层负责分段和重组。

3) What are the correct sub-layers of the data link layer?
  1. Media Access Control

  2. Logical Link Layer

  3. Both of the above

  4. None of the above

Answer & Explanation

Correct answer: 3
Both of the above

Explanation:

The MAC and LLC are sub-layers of data link layers.

3)数据链路层的正确子层是什么?
  1. 媒体访问控制

  2. 逻辑链路层

  3. 以上两者

  4. 以上都不是

答案与解释

正确答案:3
以上两者

说明:

MAC和LLC是数据链路层的子层。

4) Which layer of the OSI model is responsible for encryption and decryption?
  1. Session Layer

  2. Network Layer

  3. Presentation Layer

  4. Transport Layer

Answer & Explanation

Correct answer: 3
Presentation Layer

Explanation:

The presentation layer is responsible for encryption and decryption.

4)OSI模型的哪一层负责加密和解密?
  1. 会话层

  2. 网络层

  3. 表示层

  4. 传输层

答案与解释

正确答案:3
表示层

说明:

表示层负责加密和解密。

5) On which layer switch and bridge are operated?
  1. Session Layer

  2. Network Layer

  3. Presentation Layer

  4. Data Link Layer

Answer & Explanation

Correct answer: 4
Data Link Layer

Explanation:

The switch and bridge are operated at the data link layer.

5)在哪一层开关和电桥上进行操作?
  1. 会话层

  2. 网络层

  3. 表示层

  4. 数据链路层

答案与解释

正确答案:4
数据链路层

说明:

开关和桥接器在数据链路层进行操作。

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翻译自: https://www.includehelp/networking/osi-model-aptitude-questions-and-answers-3.aspx

osi模型:七层模型介绍

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