A、B是局域网上两个相距1km的站点，A采用同步传输方式以1Mb/s的速率向B发送长度为200，000字节的文件。假定数据帧长为128比特，其中首部为48比特:应答帧为22比特，A在收到B的应答帧后发送下一帧。传送文
件花费的时间为（ ）s，有效的数据速率为（ ）Mb/s（传播速率为200m/us）
问题1选项
A.1.6
B.2.4
C.3.2
D.3.6
问题2选项
A.0.2
B.0.5
C.0.7
D.0.8
正确答案及解析
正确答案
解析
包含此试题的试卷
你可能感兴趣的试题
Advancements in （ ）have contributed to the growth of the automotive industry through the creation and evolution of self-driving vehicles.
-
- A.Artificial Intelligence
- B.Cloud Computing
- C.Internet of Things
- D.Big Data
- 查看答案
In project human resource management , （ ）is not a source of power for the project manager.
-
- A.referent power
- B.expert power
- C.reward power
- D.audit power
- 查看答案
At the project establishment stage , the feasibility study mainly includes techinical feasibility analysis , （ ）, operation environment feasibility analysis and other aspects of feasibility analysis.
-
- A.detail feasibility analysis
- B.opportunity analysis
- C.economic feasibility analysis
- D.risk analysis
- 查看答案
（ ）is a grid that shows the project resources assigned to each work package.
-
- A.Stakeholder engagement assessment matrix
- B.Requirements traceability matrix
- C.Probability and impact matrix
- D.Responsibility assignment matrix
- 查看答案
Xinhua News Agency reported in January 2022，Chian will further promote the developmet of a digital economy during the 14th Five-Year Plan eriod（2021-2025）. The plan also emphasized industrial （ ）transformation.
-
- A.digital
- B.networking
- C.intelligentize
- D.informatization
- 查看答案