单项选择题

According to the passage, "hacker" is ______.

A．highly recognizable names behind many of the computer technologies used today
B．the negative connotation of those computer users
C．a game, employing the tools that are readily available via the Internet
D．people who break into computer systems

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单项选择题

What is the most important one among the realities listed in the passage

A．New vulnerabilities will be introduced into your environment every day.
B．The manager educates employees about properly configuring firewalls and intrusion detection systems for their PCs.
C．Managers have more responsibility than ever.
D．Security managers are asked to support increasing degrees of network availability and access.

单项选择题

It can be inferred from the passage that ______.

A．employees will keep up with security polices and awareness if they are highly-trained
B．the rate of security attacks appears faster than the growth of the Internet
C．one' s computer system will always be secure
D．vulnerabilities cannot go through phones, wireless devices