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试题一（共 15 分） 阅读以下说明，回答问题 1 至问题3，将解答填入答题纸的对应栏内。 【说明】 某公司针对通信手段的进步，需要将原有的业务系统扩展到互联网上。运行维护部门需要针对此需求制定相应的技术安全措施，来保证系统和数据的安全。 【问题 1】（4 分） 当业务扩展到互联网上后，系统管理在安全方面应该注意哪两方面？应该采取的安全测试有哪些？ 【问题 2】（6 分） 由于系统与互联网相连，除了考虑病毒防治和防火墙之外，还需要专门的入侵检测系统。请简要说明入侵检测系统的功能。 【问题 3】（5 分） 数据安全中的访问控制包含两种方式，用户标识与验证和存取控制。请简要说明用户标识与验证常用的三种方法和存取控制中的两种方法。
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【单选题】According to the art dealer, the painting _____ to go for at least a million dollars. [ ]
A.
is expected
B.
expects
C.
expected
D.
is expecting
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A.
that
B.
what
C.
so
D.
as
【单选题】Which of the following can be used to describe the finding of RV 144?
A.
unexpected
B.
expected
C.
controversial
D.
insignificant
【单选题】They landed safely on the island in the Pacific.Everything went on better than________. [ ]
A.
expec ted
B.
expecting
C.
expectation
D.
to expect
【简答题】to limit all or most of your study ,business etc to a particular subject or activity
【单选题】Hurricane warnings are issued ______ when winds of force 12 or above are expecte
A.
in all parts of the world
B.
in some parts of the world
C.
from all corners of the world
D.
from every corner of the world
【简答题】The main principles of GATT 19 47 were as follows: (1) Trade 1 was forbidden . Each contracting state had to 2 the same trading privileges and benefits (or most- 3 -nation status) to all other contrac...
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