摘要：对于【数据库系统工程师】软考考试而言，试题无疑是最重要的学习资料之一。在软考备考过程中，吃透试题、掌握试题所考知识点、熟悉试题的出题思路，对我们提升分数的效果是最明显的，通过对试题的反复练习，还可以查漏补缺。今天，给大家带来【2019上半年数据库系统工程师模拟题1 上午】部分试题的详解，一起来看看吧~



1、Networks can be interconnected by different devices in the physical layer networks can be connected by _( )_ or hubs .which just move the bits from one network to an identical network. One layer up we find bridges and switches which operate at data link layer. They can accept _( )_ examine the MAC address and forward the frames to a different network while doing minor protocol translation in the process in me network layer ,we have routers that can connect two networks, If two networks have _( )_ network layer, the router may be able to translate between the packer formats. In the transport layer we find transport gateway, which can interface between two transport connections Finally, in the application layer, application gateways translate message _( )_ .As an example, gateways between Internet e-mail and X.400 e-mail must _(请作答此空)_ the e-mail message and change various header fields.
A、analyze
B、parse
C、delete
D、create

答案:B
答题解析:无

2、The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable _(请作答此空)_ of the technical requirements for the software product.During the requirements definition phase, the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform and each _( )_ that it must meet. The starting point is usually a set of high level requirements from the _( )_ that describe the project or problem.In either case, the requirements definition team formulates an overall concept for the system and then defines _( )_ showing how the system will be operated publishes the system and operations concept document and conducts a system concept review (SCR).Following the SCR, the team derives _( )_ requirements for the system from the high level requirements and the system and operations concept. using structured or object-oriented analysis. the team specifies the software functions and algorithms needed to satisfy each detailed requirement.
A、function
B、definition
C、specification
D、statement

答案:C
答题解析:无

3、The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable _( )_ of the technical requirements for the software product.During the requirements definition phase, the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform and each _(请作答此空)_ that it must meet. The starting point is usually a set of high level requirements from the _( )_ that describe the project or problem.In either case, the requirements definition team formulates an overall concept for the system and then defines _( )_ showing how the system will be operated publishes the system and operations concept document and conducts a system concept review (SCR).Following the SCR, the team derives _( )_ requirements for the system from the high level requirements and the system and operations concept. using structured or object-oriented analysis. the team specifies the software functions and algorithms needed to satisfy each detailed requirement.
A、criterion
B、standard
C、model
D、system

答案:A
答题解析:无

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