單項(xiàng)選擇題

根據(jù)下圖，哪個(gè)選項(xiàng)描述了DLCI 17？（）

A.DLCI 17描述了R2和R3之間的ISDN線路
B.DLCI 17描述了一條在R2上的PVC 不能用在R3和R1上
C.DLCI 17是R2使用的二層地址，用來描述一條到R3的PVC
D.DlDLCI 17描述了一條從R2 R3到服務(wù)提供商撥號(hào)網(wǎng)絡(luò)

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多項(xiàng)選擇題

Why does the data communication industry use the layered OSI reference model (Choose two.)（）。

A.It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.
B.It enables equipment from different vendors to use the same electronic components, thus saving research and development funds.
C.It supports theevolution of multiple competing standards, and thus provides business opportunities for equipment manufacturers.
D.It encourages industry standardization by defining what functions occur at each layer of the model.
E.It provides a means by which changes in functionality in one layer require changes in other layers.

單項(xiàng)選擇題

You and a co-worker have established wireless communication directly between your wireless laptops. What type of wireless topology has been created（）。

A.BSS
B.ESS
C.IBSS
D.SSID

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根據(jù)下圖，哪個(gè)選項(xiàng)描述了DLCI 17？（）

你可能感興趣的試題

Why does the data communication industry use the layered OSI reference model (Choose two.)（）。

You and a co-worker have established wireless communication directly between your wireless laptops. What type of wireless topology has been created（）。

根據(jù)下圖，哪個(gè)選項(xiàng)描述了DLCI 17？（）

Why does the data communication industry use the layered OSI reference model (Choose two.)（）。

You and a co-worker have established wireless communication directly between your wireless laptops. What type of wireless topology has been created（）。