题目内容

某用户想要使用广域网接入。由于平均业务量很小,平均仅为50Kbps带宽,但是实时性要求很高。该用户预算非常有限,因此必须考虑使用费用问题。最合适的接入方式为()

A. ISDN BRI
B. ISDN PRI
C. PSTN拨号
DDN专线

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立体种养。

An administrator wants to run topas as their own userid but gets the following error when trying. user1>$ topas topas. Unable to initialize Spmi interface Spmi. Error 13 opening file /etc/Spmi_shm_hook. Which of the following is the most likely cause of the error?()

A. The /dev/kmem file must be at 777 permissions.
B. The administrator is using other shell than ksh.
C. The number of pipe handles at /etc/tunables is too low.
D. The topas command must be run with root at least once previously.

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分析李白诗歌的思想内容。

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