卫星电视服务商准备启动一个SOA项目以支持电视服务的商业活动,哪一个是保证商业驱动技术执行和达到预期投资回报的最好方法?()
A、创建一个参考模型,对标准进行分类、对规范和技术进行重构,传递和交换应用程序组件,并对框架进行描述
B、对商业需求和期望的结果建立文档,设计需要的商业服务以满足这些需求,并基于这些商业案例开发测试案例
C、对工程的技术设计建立文档,重新审查商业分行以确保满足商业需求,保证各个点的有效性
D、依照模型对商业需求进行绘图,以决定需要的新功能
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Which of the following NLS_SORT parameter values would result in case-insensitive and accent-insensitive binary sorts?()
A、NLS_SORT = BINARY
B、NLS_SORT = BINARY_AI
C、NLS_SORT = BINARY_CI
D、NLS_SORT = BINARY_AI_CI
E、Binary sorts are case insensitive and accent insensitive by default.
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Which command displays the number of packets transmitted for each NIC available on the system?()
A、entstat -v
B、netstat -i
C、entstat -aon
D、netstat -na
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You want to analyze a SQL Tuning Set (STS) using SQL Performance Analyzer in a test database. Which two statements are true regarding the activities performed during the test execution of SQLs in a SQL Tuning Set?()
AEvery SQL statement in the STS is considered only once for execution.
BThe SQL statements in the STS are executed concurrently to produce the execution plan and execution statistics.
CThe execution plan and execution statistics are computed for each SQL statement in the STS.
DThe effects of DDL and DML are considered to produce the execution plan and execution statistics.
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The NLS_SORT parameter sets the default sort method for which of the following operations?()
AWHERE clause WHERE
BORDER BY clause
CBETWEEN clause
DNLSSORT function
ENLS_SORT function
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对于TD-SCDMA(E频段)与TD-LTE(E频段)共存且采用独立RRU的场景,应使用()进行外部合路后馈入合路器E频段端口。
A、合路器
B、功分器
C、耦合器
D、电桥