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A Windows Communication Foundation (WCF) service sends notifications when the service is started and stopped.You need to implement a client that logs these notifications. Which class should you use?（）
A . AnnouncementService
B . AnnouncementClient
C . DiscoveryClient
D . HttpListener
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When approaching a fire from win ward, you should shield firefighters from the fire by using（）
A . low-velocity fog
B . high-velocity fog
C . a straight stream of water
D . foam spray
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When anchoring，good practice requires 5 to 7 fathoms of chain for each fathom of depth. In deep water you should use（）.
A . the same ratio
B . more chain for each fathom of depth
C . less chain for each fathom of depth
D . two anchors with the same ratio of chai
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When securing a hook to the end of a wire rope you should use（）.
A . A bowline knot
B . A long splice
C . An overhand knot with a wire rope clip
D . Wire rope clips with a thimble eye
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When configuring a WLAN controller for a voice application using Cisco 7920 wireless IP phones，which two general control settings should you select？（）
A . Multicast on
B . Aggressive Load Balancing off
C . Multicast off
D . AP Fallback on
E . Aggressive Load Balancing on
F . AP Fallback off
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When using a fuel with a higher than normal sulfur content in an auxiliary diesel engine, you should（）
A . maintain higher than normal jacket water temperature
B . change the lube oil more frequently than normal
C . maintain a higher air-box temperature than normal
D . maintain a higher air-box pressure than normal
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Very soon you will be performing maintenance operations. You would have several jobs to run as soon as the maintenance period starts. Which method would you use to create jobs without specifying the time period when the job should be run？（）
A . use DBMS_IJOB package
B . use Oracle Scheduler
C . use DBMS_JOB package
D . use Oracle Data Pump Export and Import
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When configuring a WLAN controller for a voice application using Cisco 7920 wireless IP phones. Which two general control settings should you select？ （）
A . Aggressive Load Balancing on
B . Aggressive Load Balancing off
C . Multicast on
D . Multicast off
E . AP Fallback on
F . AP Fallback off
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You plan to use Windows PowerShell scripts to configure system settings when you deploy Windows 7. You need to ensure that Windows PowerShell scripts will run on the client computers during initial setup. What should you do？（）
A . Set the script execution policy to RemoteSigned.
B . Set the script execution policy to AllSigned.
C . Set the script execution policy to Restricted.
D . Use Group Policy preferences.
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When using an ARPA，what should you consider in order to evaluate the information displayed?（）
A . The target vessel's generated course and speed are based solely on radar inputs
B . Navigational constraints may require a target vessel to change course
C . The trial maneuver feature will automatically determine a course that will clear all targets
D . You cannot determine if a small target has been lost due to sea retur
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A “Mediterranean moor” should be used when（）.
A . when anchoring in the Mediterranean
B . when docking stern to a berth
C . when docking bow to a berth
D . when anchoring in a strong current
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When running IP SLA， which application type should be used if you want to know round-trip delay， jitter， and packet loss for the full path？（）
A . ICMP path echo
B . UDP echo
C . ICMP path jitter
D . Application Performance Monitor
E . TCP connect
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You have an Exchange Server 2010 organization.Your network contains internal DNS servers.You need to ensure that the Hub Transport servers use external DNS servers when they resolve Internet names. What should you modify？（）
A . the message delivery properties of the Hub Transport global settings
B . the properties of the default remote domain
C . the properties of the Hub Transport server object
D . the properties of a Send connector
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When configuring a WLAN controller for a voice application using Cisco 7920 wireless IP phones，which two general control settings should you select？（）
A . Aggressive Load Balancing on
B . Aggressive Load Balancing off
C . Multicast on
D . Multicast off
E . AP Fallback on
F . AP Fallback off
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When using the ARPA in heavy rain，which action should you take? （）
A . Increase the radar gain to pick up weak echoes through the rain
B . Increase the STC setting to reduce close-in spurious signals
C . Navigate as though the effective range of the radar has been reduced
D . Increase the range of the inner and outer guard ring
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When configuring a wlan controller for a voice application using cisco 7920 wireless ip phones. which two general control settings should you select？（）
A . multicast on
B . aggressive load balancing off
C . multicast off
D . ap fallback on
E . aggressive load balancing on
F . ap fallback off
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When should distress flares and rockets be used? （）
A . Immediately upon abandoning the vessel
B . Only when there is a chance of their being seen by a rescue vessel
C . At one hour intervals
D . At half hour interval
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When explaining concepts, you should try to use technical language to appear more authoritative.
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When using a tool compensation function,you should check the direction and amount of compensation.
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When using PowerPoint slides, you should try to limit slides to one every minute.
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Why use glass when you can use plastic?
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You are the administrator of a Windows Server 2003 computer named Testking1.An application on Testking1 gradually uses more and more memory until it causesTestking1 to stop responding. If you restart the application before it uses theavailable memory, there is no interruption of user services.You need to configure Testking1 to notify you when it encounters a low-memorycondition.What should you do？（）
A. Using Task Scheduler, schedule a repeating task that runs the tracert command.
B. Using Performance Logs and Alerts, configure an alert for the appropriate performance object.
C. Using System Monitor, configure the appropriate performance object to display.
D. Using Startup and Recovery Settings, configure Testking1 to send an Administrative Alert.
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You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.You plan to use a PresentationTraceSources object when the application is executed by users.When the application is executed in a test environment, all debug information is successfully captured.You need to be able to capture debug information when the application is deployed.What should you do？（）
A.Enable WPF tracing in the registry.Restart the application.
B.Enable tracing by modifying local Group Policy.Restart the application.
C.Open the XML configuration file for your application on the user‘s computer.Set tracing to a verbose level.Restart the application.
D.Open the XML configuration file for your application on the user‘s computer.Add a trace listener.Restart the application.
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You use Microsoft .NET Framework 4 to create a Windows Forms application.You plan to use a Windows Presentation Foundation (WPF) control of the UserControl1 type hosted in anElementHost control named elementHost1.You write the following code segment. (Line numbers are included for reference only.)You need to ensure that the application changes the background color of the hosted control when the background color of the form changes.Which code segment should you insert at line 05？（）
<img src='https://img2.soutiyun.com/shangxueba/ask/17130001-17133000/17130030/2d777510fe2f3c75e68a192da66f7ac0.jpg' />
A.elementHost1.PropertyMap.Remove("BackColor");elementHost1.PropertyMap.Add("BackColor", new PropertyTranslator(OnBackColorChange));
B.elementHost1.PropertyMap.Remove("Background"); elementHost1.PropertyMap.Add("Background", new PropertyTranslator(OnBackColorChange));
C.elementHost1.PropertyMap.Add("BackColor", new PropertyTranslator(OnBackColorChange)); elementHost1.PropertyMap.Apply("BackColor");
D.elementHost1.PropertyMap.Add("Background", new PropertyTranslator(OnBackColorChange)); elementHost1.PropertyMap.Apply("Background");
