A system is experiencing name resolution issues. The administrator has verified that /etc/resolv.conf is suitably configured using correct syntax. However, processes run by non-root users are failing to resolve any hostnames to IP addresses with the error 'No response from server'. Which tool will help trace the nslookup command in an attempt to investigate the problem?()A、kdbB、dbxC、traceD、truss

A system is experiencing name resolution issues. The administrator has verified that /etc/resolv.conf is suitably configured using correct syntax. However, processes run by non-root users are failing to resolve any hostnames to IP addresses with the error 'No response from server'. Which tool will help trace the nslookup command in an attempt to investigate the problem?()

  • A、kdb
  • B、dbx
  • C、trace
  • D、truss

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public class Employee{       private String name;  public Employee(String name){           this.name = name;      }  public String getName(){         return name;      } }  public class Manager extends Employee{       public Manager(String name){          System.out.println(getName());      } }  执行语句new Manager(“smith”)后程序的输出是哪项?() A、 smithB、 nullC、 编译错误D、 name

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public class Pet{   private String name;   public Pet(){   System.out.print(1);  }   public Pet(String name){   System.out.print(2);  }   }   public class Dog extends Pet{  public Dog(String name){   //这里隐藏了一句代码:super.pet();   System.out.print(3);  }   }   执行new Dog(“棕熊”);后程序输出是哪项?() A、 23B、 1 3C、 123D、 321

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public class Pet{   private String name;   public Pet(){   System.out.print(1);  }   public Pet(String name){   System.out.print(2);   }  }   public class Dog extends Pet{  public Dog(){   System.out.print(4);  }   public Dog(String name){   //这里隐藏了一句代码:super.pet();   this();   System.out.print(3);  }  }   执行new Dog(“棕熊”);后程序输出是哪项?() A、 143B、 423C、 243D、 1134

public class Pet{     private String name;     public Pet(){  System.out.print(1);    }  public Pet(String name){        System.out.print(2);    } }  public class Dog extends Pet{     public Dog(){  System.out.print(4);    }  public Dog(String name){        this();  System.out.print(3);    } }  执行new Dog(“棕熊”);后程序输出是哪项?()  A、 143B、 423C、 243D、 1134

Given that c is a reference to a valid java.io.Console object, and: 11.String pw = c.readPassword("%s", "pw: "); 12.System.out.println("got " + pw); 13.String name = c.readLine("%s", "name: "); 14.System.out.println(" got ", name); If the user types fido when prompted for a password, and then responds bob when prompted for a name,what is the result?()A、An exception is thrown at runtimeB、pw: fido got fido name: bob got bobC、pw: got fido name: bob got bobD、Compilation fails.

A system is experiencing performance problems.  After checking the CPU usage, the problem identified is that the system is "CPU Bound".  Which of the following outcomes will determine if there is a possible CPU constraint?()A、 Low paging B、 High paging C、 Workload manager is not turned on D、 A high run queue length

单选题public class Pet{     private String name;     public Pet(){  System.out.print(1);    }  public Pet(String name){        System.out.print(2);    } }  public class Dog extends Pet{     public Dog(){  System.out.print(4);    }  public Dog(String name){        this();  System.out.print(3);    } }  执行new Dog(“棕熊”);后程序输出是哪项?()A 143B 423C 243D 1134

单选题public class Employee{       private String name;  public Employee(String name){           this.name = name;      }  public void display(){         System.out.print(name);      } }  public class Manager extends Employee{       private String department;  public Manager(String name,String department){          super(name);  this.department = department;  }  public void display(){  System.out.println(super.display()+”,”+department);      } }  执行语句new Manager(“smith”,”SALES”)后程序的输出是哪项?()A smith,SALESB null,SALESC smith,nullD null,nullE 编译错误

单选题Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem?()A filemonB istatC vmstatD iostat

单选题public class Pet{   private String name;   public Pet(){   System.out.print(1);  }   public Pet(String name){   System.out.print(2);  }  }   public class Dog extends Pet{  public Dog(){   System.out.print(4);  }   public Dog(String name){   super(name);   System.out.print(3);  }   }   执行new Dog(“棕熊”);后程序输出是哪项?()A 33B 13C 23D 123

名词解释题DNS(Domain Name System)域名系统

单选题An Intermediate System experiencing memory problems indicates that it may have incomplete data by setting which bit in its LSP?()Amore bitBpartition bitCattached bitDoverload bit

单选题public class Pet{     private String name;     public Pet(){  System.out.print(1);    }  public Pet(String name){        System.out.print(2);    } }  public class Dog extends Pet{     public Dog(String name){        System.out.print(3);    } }  执行new Dog(“棕熊”);后程序输出是哪项?()A 23B 13C 123D 321

单选题Given that c is a reference to a valid java.io.Console object, and: 11.String pw = c.readPassword("%s", "pw: "); 12.System.out.println("got " + pw); 13.String name = c.readLine("%s", "name: "); 14.System.out.println(" got ", name); If the user types fido when prompted for a password, and then responds bob when prompted for a name,what is the result?()AAn exception is thrown at runtimeBpw: fido got fido name: bob got bobCpw: got fido name: bob got bobDCompilation fails.

单选题public class Pet{     private String name;     public Pet(String name){       this.name = name;    }  public void speak(){     System.out.print(name); }  }  public class Dog extends Pet{     public Dog(String name){       super(name);    }  public void speak(){    super.speak();  System.out.print(“ Dog ”);    } }  执行代码   Pet pet = new Dog(“京巴”);  pet.speak();  后输出的内容是哪项?()A 京巴B 京巴 DogC nullD Dog京巴