Which command displays the current temperature of a Junos device's components?()A. show chassis temperature-thresholdsB. show chassis environmentC. show chassis hardwareD. show chassis alarms

题目
Which command displays the current temperature of a Junos device's components?()

A. show chassis temperature-thresholds

B. show chassis environment

C. show chassis hardware

D. show chassis alarms


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参考答案和解析
更多“Which command displays the current temperature of a Junos device's components?() ”相关问题
  • 第1题:

    本题的功能是监听鼠标的操作。鼠标置于窗口中单击时(左键或右键),在单击的地方会画一个小矩形,如果将鼠标置于小矩形上,则鼠标光标状态改为小十字,按下鼠标左键可拖曳,双击鼠标左键(或右键)时,小矩形消失。 import java.awt.*; import java.awt.event.*; import java.util.*; import java.awt.geom.*; import javax.swing.*; public class java3 { public static void main(String[]args) { MouseFrame. frame=new MouseFrame: frame.setDefaultCloseOperation(JFrame.EXIT_ oN_CLOSE); frame.show; } } class MouseFrame. extends JFrame { public MouseFrame { setTitle("java3"); setSize(DEFAULT WIDTH, DEFAULT HEIGHT): MousePanel panel=new MousePanel; Container contentPane=getContentPane; contentPane.add(panel); } public static final int DEFAULT_WIDTH=300; public static final int DEFAULT_HEIGHT=200; } class MousePanel extends JPanel { public MousePanel { squares=new ArrayList; current=null: addMouseListener(new MouseHandler); addMouseMotionListener(new MouseMotionHan- dler); } public void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2=(Graphics2D)g; for(int i=0;i<squares.size;i++) g2.draw((Rectangle2D)squares.get(i)); } public void find(Point2D p) { for(int i=0;i<squares.size;i++) { Rectangle2D r=(Rectangle2D)squares.get(i); if(r.contains(p))return r; } return null: } public void add(Point2D p) { double x=P.getX; double Y=P.getY: current=new Rectangle2D.Double( x-SIDELENGTH/2. y-SlDELENGTH/2. S1DELENGTH, SIDELENGTH); squares.add(current); repaint; } public void remove(Rectangle2D s) { if(S= =null)return: if(S= =current)current=null; squares.remove(s): repaint; } private static final int SIDELENGTH=10: private ArrayList squares; private Rectangle2D current; private class MouseHandter extends MouseAction- Listener { public void mousePressed(MouseEvent event) { current=find(event.getPoint); if(current= =null) add(event.getPoint); } public void mouseClicked(MouseEvent event) { current=find(event.getPoint); if(current!=nullevent.getClickCount >=2) remove(current); } } private class MouseMotionHandler implements Mouse- MotionListener { public void mouseMoved(MouseEvent event) { if(find(event.getPoint)= =null) setCursor(Cursor.getDefaultCursor); else setCursor(Cursor.getPredefinedCursor (Cursor.CROSSHAIR_CURSOR)); } public void mouseDragged(MouseEvent event) { if(current!=null) { int x=event.getX: int Y=event.getY; 、 current.setFrame( x-SIDELENGTH/2, Y-SlDELENGTH/2. SIDELENGTH, SIDELENGTH); repaint; } } } }


    正确答案:
    第1处:public Rectangle2D find(Point2D p)
    第2处:private class MouseHandler extends MouseAdaopter
    第3处:find(event.getPoint)= =null
    【解析】第1处定义一个返回类型为Rectangle2D的find函数且有一个Point2D型的形参;第2处定义了继承鼠标适配器MouseAdapt的MouseHandler;第3处判断find函数的返回值是否为空。

  • 第2题:

    Which security or functional zone name has special significance to the Junos OS?()

    A. self

    B. trust

    C. untrust

    D. junos-global


    参考答案:D

  • 第3题:

    The engine has more than 300( ),made of a number of different materials.

    A.compositions
    B.ingredients
    C.compounds
    D.components

    答案:D
    解析:
    component尤指用于机械装置的(组)成(部)分。A.composition尤用于指物体内在固有的不可分割的(组)成(部)分;B.ingredient主要指混合物之成分,如:蛋糕的一种“成分”(ingredient)是糖,糖的“成分”(compositions)有氢等;C.compound“混合物”。

  • 第4题:

    Which zone is system-defined?()

    A.security

    B.functional

    C.junos-global

    D.management


    参考答案:C

  • 第5题:

    In the RGB color spaces, each pixel on the screen has a corresponding RGB value which consists of(71)components.

    A.two

    B.three

    C.four

    D.six


    正确答案:B
    解析:译文:在RGB色彩空间中,屏幕上的每一个像素对应一个RGB值,这个值由三个分量组成。

  • 第6题:

    下列Moore型状态机采用Verilog语言主控时序部分正确的是:

    A.always@(posedge clk or negedge reset) begin if(!reset) current_state<=s0; else current_state<=next_state; end

    B.always@(posedge clk ) begin if(!reset) current_state<=s0; else current_state<=next_state; end

    C.always@(posedge clk t) if(reset) current_state<=s0; else current_state<=next_state;

    D.always@(posedge clk or negedge reset) if(reset) current_state<=s0; else current_state<=next_state;


    always@(posedge clk or negedge reset) begin if(!reset) current_state<=s0; else current_state<=next_state; end