题目内容

点分线段之比，投影前后保持不变。

A. 对
B. 错

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哪种类型的网络电缆包含多根铜线，并使用额外的屏蔽来防止干扰？Which type of network cable contains multiple copper wires and uses extra shielding to prevent interference?

A. STP
B. 光纤fiber-optic
C. UTP
D. coax

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电视公司使用哪种类型的数据电缆来传运数据和视频信号？Which type of data cable is used by television companies to carry data and video signals?

A. 非屏蔽双绞线unshielded twisted-pair
B. 同轴线coaxial
C. 光纤fiber-optic
D. 屏蔽双绞线shielded twisted-pair

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哪个术语描述了当一根电缆的电脉冲穿过相邻电缆时的干扰？Which term describes the interference when electrical impulses from one cable cross over to an adjacent cable?

A. 交叉干扰crossover
B. 串扰crosstalk
C. 串通collision
D. 射频干扰RFI

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一群新聘用的入门级网络工程师正在谈论他们作为一个团队必须安装的网络布线。以太网直通 UTP 电缆的特征是什么？A group of newly hired entry-level network engineers are talking about the network cabling they are going to have to install as a team. What is a characteristic of Ethernet straight-through UTP cable?

A. 它只能在电缆的两端使用 T568A 标准It can only use the T568A standard at both ends of the cable.
B. 它可用于连接两个网络主机It can be used to connect two network hosts.
C. 它是思科专有的。It is Cisco proprietary.
D. 它容易受到来自 EMI 和 RFI 的干扰。It is susceptible to interferences from EMI and RFI.

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点分线段之比，投影前后保持不变。

A. 对 B. 错

哪种类型的网络电缆包含多根铜线，并使用额外的屏蔽来防止干扰？Which type of network cable contains multiple copper wires and uses extra shielding to prevent interference?

电视公司使用哪种类型的数据电缆来传运数据和视频信号？Which type of data cable is used by television companies to carry data and video signals?

哪个术语描述了当一根电缆的电脉冲穿过相邻电缆时的干扰？Which term describes the interference when electrical impulses from one cable cross over to an adjacent cable?

A. 对
B. 错