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单选题
The contrast ratio for an LCD monitor is BEST defined as the ratio between:（）
A
display resolution and brightness.
B
power consumption and output intensity.
C
power savings of a comparable crt monitor and the lcd.
D
the darkest and lightest displayed output.
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Which of the following is a laptop monitor technology that uses a backlight to produce an image on the screen?()
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A technician replaces a user’s 15 inch LCD with a 20 inch LCD. Later, the user informs thetechnician that icons are very large and the text on the monitor is fuzzy and distorted. Which of the following is MOST likely the cause?（）A、The contrast setting needs to be raised from the default.B、The monitor firmware was not updated.C、The new monitor has a different native resolution.D、The monitor needs to be degaussed to clarify the picture.
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Which of the following is a good choice to use a process application monitor？（）A、 A process stated by cronB、 A shell script owned by a non-root userC、 A process with a specific name and ownerD、 An application defined to SRC without the restart （-O） flag
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Which statements concerning the methods notify（） and notifyAll（） are true？ A、Instances of class Thread have a method called notify（）.B、A call to the method notify（） will wake the thread that currently owns the monitor of the object.C、The method notify（） is synchronized.D、The method notifyAll（） is defined in class Thread.E、When there is more than one thread waiting to obtain the monitor of an object， there is no way to be sure which thread will be notified by the notify（） method.
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A technician has a laptop in for repair with a consistent video corruption issue. The issue is seen on the local display and on an external monitor. The issue happens on the BIOS setup screen as well as within Windows. Which of the following laptop components is MOST likely failing?（）A、VGA portB、LCD displayC、Onboard video cardD、Inverter
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The contrast ratio for an LCD monitor is BEST defined as the ratio between:（）A、display resolution and brightness.B、power consumption and output intensity.C、power savings of a comparablecrt monitor and the lcd.D、the darkest and lightest displayed output.
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单选题A technician replaces a user’s 15 inch LCD with a 20 inch LCD. Later, the user informs thetechnician that icons are very large and the text on the monitor is fuzzy and distorted. Which of the following is MOST likely the cause?（）A
The contrast setting needs to be raised from the default.B
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单选题A technician installed a new video card on a motherboard which has onboard video. When the monitor was plugged into the new card and the power was turned on, a no signal message appeared on the monitor. Which of the following is MOST likely the issue?（）A
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单选题A laptop LCD screen needs to be replaced. Which of the following tools would be BEST used toopen the case?（）A
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单选题A user would like to use an external monitor with their laptop, but when the monitor is plugged in and connected to the laptop, the screen does not display on the monitor. Which of the following is the BEST way to display an image on both the monitor and the laptop?（）A
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考题
单选题A corporation plans to replace older office PCs with energy efficient personal computers in their 24 hour help desk department. Which of the following would be the BEST choice？（）A
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考题
单选题Which of the following is a good choice to use a process application monitor？（）A
A process stated by cronB
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单选题A cluster administrator decides ti implement application monitoring in order to monitor both a web application and its supporting database. The plan is to use a single resource group prod_rg and to configure one monitor method for the web app and one monitor method for the database. Which of the following statements best describes the need for custom resource monitor？（）A
Multiple application servers must be in a single resource group.B
Multiple application servers per resource group may be monitored.C
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考题
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考题
单选题Which of the following is the primary motivation for using BGP between an Enterprise and its ISPs?（）A
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To avoid having to configure static routesC
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To monitor the size of the Internet BGP table
考题
多选题Which statements concerning the methods notify（） and notifyAll（） are true？AInstances of class Thread have a method called notify（）.BA call to the method notify（） will wake the thread that currently owns the monitor of the object.CThe method notify（） is synchronized.DThe method notifyAll（） is defined in class Thread.EWhen there is more than one thread waiting to obtain the monitor of an object， there is no way to be sure which thread will be notified by the notify（） method.
考题
单选题Which of the following is the BEST reason to implement a firewall on a server？（）A
To watch for bandwidth issuesB
To protect the server from all trafficC
To block certain traffic by portsD
To monitor certain malicious traffic
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