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Which two statements are true about broadband cable （HFC） sy

题目
多选题
Which two statements are true about broadband cable （HFC） systems？（）
A

Cable modems only operate at Layer 1 of the OSI model.

B

Cable modems operate at Layers 1 and 2 of the OSI model.

C

Cable modems operate at Layers 1， 2， and 3 of the OSI model.

D

A function of the cable modem termination system （CMTS） is to convert the modulated signal from the cable modem into a digital signal.

E

A function of the cable modem termination system is to convert the digital data stream from the end user host into a modulated RF signal for transmission onto the cable system.

参考答案和解析
正确答案： B,D
解析： 暂无解析
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Which two statements are true about AH?() (Choose two.)

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B. AH is identified by IP protocol 50.

C. AH is identified by IP protocol 51.

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参考答案：A, C

第2题：

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第3题：

The user SYS creates a job by using the following command:Which two statements are true about the job that was created by the preceding command?()

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第4题：

Which two statements about static NAT translations are true?（）

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第5题：

Which two statements are true about traffic shaping？（）

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第7题：

Which two statements are true about L2TP tunnels?（） (Choose two.)

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第8题：

Which two statements are true about pool－based source NAT? ()(Choose two.)

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第9题：

Which two statements about the Cisco Nexus 1000V VSM are true?（）

  • A、It performs switching decisions and forwarding for the VEM
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正确答案:B,C

第10题：

Which two statements are true about broadband cable （HFC） systems？（）

  • A、Cable modems only operate at Layer 1 of the OSI model.
  • B、Cable modems operate at Layers 1 and 2 of the OSI model.
  • C、Cable modems operate at Layers 1， 2， and 3 of the OSI model.
  • D、A function of the cable modem termination system （CMTS） is to convert the modulated signal from the cable modem into a digital signal.
  • E、A function of the cable modem termination system is to convert the digital data stream from the end user host into a modulated RF signal for transmission onto the cable system.

正确答案:B,D

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