N10-004單項(xiàng)選擇題每日一練(2019.01.20)

來(lái)源：考試資料網(wǎng)

1 At which of the following layers does the TCP protocol operate?（）

2 Which of the following attacks occurs when a hijacker intercepts traffic, modifies it, then sends thetraffic?（）

3 A user reports that the wireless network is slow and is able to see and access shared folders that are
unknown to the user.
Which of the following is the cause of the problem?（）

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4 Which of the following WAN technologies uses a telephone cable?（）

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5 Which of the following is a performance optimization technology?（）

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