名词解释题噪声控制标准criteria for noise control
名词解释题
噪声控制标准criteria for noise control
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关于企业进行噪声控制设计,下列说法正确的是:() A.职工需长时间在强噪声设备旁工作且混响声较强的作业场所，应当尽可能采取吸声降噪措施B.对于噪声源数量少且比较集中，易于处理的场所，应当优先考虑采取声源隔离措施降低噪声C.企业进行噪声控制设计，应当符合国家标准《工业企业噪声控制设计规范》
You are the Cisco Network Designer in Cisco.com. Which signal and noise values will result in the best phone communication with an access point?() A. signal strength 5dBmB. signal strength 6dBmC. noise level 4dBmD. noise level 5dBm
In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?（）A、the signal to noise of the current optical amplifierB、the signal to noise of the previous amplifier or sourceC、the signal to noise introduced by the optical multiplexerD、the accumulated noise to signal ratio of the optical channel
Which of the following statemets regarding Control Plane Policing （CoPP） is correct？（）A、Control Plane Policing （CoPP） addresses the need to protect the management planes， ensuring routingstability， availability， and critical packet delivery.B、Control Plane Policing （CoPP） leverages MQC to define traffic classification criteria and to specifyconfigurable policy actions for the classified traffic.C、Control Plane Policing （CoPP） uses a dedicated "control-plane" command via the Modular QoS CLI （MQC）to provide filtering and rate limiting capabilities.D、Control Plane Policing （CoPP） uses "service policy" command under relevant interfaces to filter DOS packet to protect routing packets.E、Control Plane Policing （CoPP） protects the transit management and data traffic through the router.
Which of the following is MOST likely causing an intermittent flashing LED on an IR receiver when the remote control is not being used？（）A、The power supply is faulty and should be replaced.B、The heat from a heating， ventilation， and air conditioning （HVAC） register is being received as infrared noise.C、The radio frequency interference （RFI） is being received as noise.D、A plasma display is emitting infrared noise.
在Hibernate的Criteria查询中，查询5条记录的方法是（）。A、criteria.setFirstResult（4）；B、criteria.setFirstResult（5）；C、criteria.setMaxResult（4）；D、criteria.setMaxResult（5）；
下面创建Criteria对象的语句中正确的是（）A、Criteria c = query.createCriteria（）；B、Criteria c = query.addCriteria（）；C、Criteria c = session.createCriteria（）；D、Criteria c = session.createCriteria（User.class）；
在Hibernate的Criteria查询中，下列按创建日期进行排序的方法是（）。A、criteria.addOrder（Order.asc（"createDate"））；B、criteria.addOrder（Order.desc（"createDate"））；C、criteria.saveOrder（Order.asc（"createDate"））；D、criteria.saveOrder（Order.desc（"createDate"））；
关于Criteria查询，下列说法正确的有（）。A、Criteria查询通过面向对象化的设计将数据查询条件封装成一个对象B、Criteria查询可读性强C、Criteria查询符合Java程序员的编程习惯D、Criteria查询没有HQL查询容易理解
在Hibernate的Criteria查询中，从第5条记录开始查询的方法是（）。A、criteria.setFirstResult（4）；B、criteria.setFirstResult（5）；C、criteria.setMaxResult（4）；D、criteria.setMaxResult（5）；
Which signal and noise values will result in the best phone communication with an access point？（）A、 Signal strength 0dBm， noise level 6dBmB、 Signal strength 8dBm， noise level 9dBmC、 Signal strength 4 dBm， noise level 4 dBmD、 Signal strength 6dBm， noise level 5 dBm
Which signal and noise values will result in the best phone communication with an access point?（）A、signal strength 46dBm, noise level 95dBmB、signal strength 74dBm, noise level 94dBmC、signal strength 68dBm, noise level 79dBmD、signal strength 50dBm, noise level 56dBm
You are the Cisco Network Designer in Cisco.com. Which signal and noise values will result in thebest phone communication with an access point？（）A、 signal strength 5dBmB、 signal strength 6dBmC、 noise level 4dBmD、 noise level 5dBm
You are developing a product search page named Search.aspx for Web application that will be integrated into Certkiller .com's existing e-Commerce Web site. The Search.aspx page allows customers search for products that match specific criteria. Once a product is located, you want an image of the product to be displayed. You want to use an Image control to display the image. You want to configure the Image control to display a description of the image if the image cannot be displayed in the customer's Web browser. What should you do?（）A、Set the ToolTip property of the Image control.B、Set the ImageUrl property of the Image control.C、Set the AlternateText property of the Image control.D、Set the DescriptionUrl property of the Image control.
单选题In the OSNR model for EDFA amplifiers， SNR OUT = 1/（1/SNR IN + FhvB/P IN ）， what does SNR IN represent？（）A the signal to noise of the current optical amplifierB the signal to noise of the previous amplifier or sourceC the signal to noise introduced by the optical multiplexerD the accumulated noise to signal ratio of the optical channel
单选题Which of the following is MOST likely causing an intermittent flashing LED on an IR receiver when the remote control is not being used？（）AThe power supply is faulty and should be replaced.BThe heat from a heating， ventilation， and air conditioning （HVAC） register is being received as infrared noise.CThe radio frequency interference （RFI） is being received as noise.DA plasma display is emitting infrared noise.
单选题Which one of the following files contains records that do not meet the specified load criteria in the SQL*Loader control file？（）ALog fileBDiscard fileCParameter fileDBad file
单选题In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?（）Athe signal to noise of the current optical amplifierBthe signal to noise of the previous amplifier or sourceCthe signal to noise introduced by the optical multiplexerDthe accumulated noise to signal ratio of the optical channel
名词解释题噪声控制标准