Which Public Key Cryptographic Standards (PKCS) defines the syntax for encrypted messages andmessages with digital signatures?()A、PKCS #7B、PKCS #8C、PKCS #10D、PKCS #12

Which Public Key Cryptographic Standards (PKCS) defines the syntax for encrypted messages andmessages with digital signatures?()

  • A、PKCS #7
  • B、PKCS #8
  • C、PKCS #10
  • D、PKCS #12

相关考题:

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Whether ways will be found to stop pollution or not is just which worries the public.()

Given:Which code, inserted at line 15, allows the class Sprite to compile?() A.Foo { public int bar() { return 1; }B.new Foo { public int bar() { return 1; }C.new Foo() { public int bar() { return 1; }D.new class Foo { public int bar() { return 1; }

public interface A {  String DEFAULT_GREETING = “Hello World”;  public void method1();  }  A programmer wants to create an interface called B that has A as its parent. Which interface declaration is correct?() A、 public interface B extends A {}B、 public interface B implements A {}C、 public interface B instanceOf A {}D、 public interface B inheritsFrom A {}

Which declarations will allow a class to be started as a standalone program?()  A、public void main(String args[])B、public void static main(String args[])C、public static main(String[] argv)D、final public static void main(String [] array)E、public static void main(String args[])

Which three demonstrate an “is a” relationship?() A、 public class X { }  public class Y extends X { }B、 public interface Shape { }  public interface Rectangle extends Shape{ }C、 public interface Color { }  public class Shape { private Color color; }D、 public interface Species { }  public class Animal { private Species species; }E、 public class Person { } public class Employee {  public Employee(Person person) { }F、 interface Component { }  class Container implements Component { private Component[] children; }

Which two allow the class Thing to be instantiated using new Thing()?A、 public class Thing { }B、 public class Thing { public Thing() {} }C、 public class Thing { public Thing(void) {} }D、 public class Thing { public Thing(String s) {} }E、 public class Thing { public void Thing() {} public Thing(String s) {} }

Which will declare a method that forces a subclass to implement it? () A、 Public double methoda();B、 Static void methoda (double d1) {}C、 Public native double methoda();D、 Abstract public void methoda();E、 Protected void methoda (double d1){}

A JavaBeans component has the following field:  11. private boolean enabled;  Which two pairs of method declarations follow the JavaBeans standard for accessing this field?()A、 public void setEnabled( boolean enabled) public boolean getEnabled()B、 public void setEnabled( boolean enabled) public void isEnabled()C、 public void setEnabled( boolean enabled) public boolean isEnabled()D、 public boolean setEnabled( boolean enabled) public boolean getEnabled()

Which of the following describe private IP addresses?()A、addresses chosen by a company to communicate with the InternetB、addresses that cannot be routed through the public InternetC、addresses that can be routed through the public InternetD、a scheme to conserve public addressesE、addresses licensed to enterprises or ISPs by an Internet registry organization

Which of the following is used to reduce the number of public IP addresses required?()A、RADIUSB、SNATC、PATD、NAT

class One {   public One foo() { return this; }  }  class Two extends One {  public One foo() { return this; }  }  class Three extends Two {   // insert method here  }  Which two methods, inserted individually, correctly complete the Three class?()A、 public void foo() { }B、 public int foo() { return 3; }C、 public Two foo() { return this; }D、 public One foo() { return this; }E、 public Object foo() { return this; }

Which method must be defined by a class implementing the java.lang.Runnable interface? () A、 void run()B、 public void run()C、 public void start()D、 void run(int priority)E、 public void run(int priority)F、 public void start(int priority)

Which is a method of the MouseMotionListener interface?()A、 Public void mouseMoved(MouseEvent)B、 Public boolean mouseMoved(MouseEvent)C、 Public void mouseMoved(MouseMotionEvent)D、 Public boolean MouseMoved(MouseMotionEvent)E、 Public boolean mouseMoved(MouseMotionEvent)

Which the two demonstrate an “is a” relationship?()A、 public interface Person {}  Public class Employee extends Person {}B、 public interface Shape {}  public interface Rectangle extends Shape {}C、 public interface Color {}  public class Shape { private Color color; }D、 public class Species {}  public class Animal { private Species species; }E、 interface Component {} Class Container implements Component {private Component [] children;

Which three form part of correct array declarations?()  A、 public int a []B、 static int [] aC、 public [] int aD、 private int a [3]E、 private int [3] a []F、 public final int [] a

Given an ActionEvent, which method allows you to identify the affected Component?()  A、 Public class getClass()B、 Public Object getSource()C、 Public Component getSource()D、 Public Component getTarget()E、 Public Component getComponent()F、 Public Component getTargetComponent()

Which two code fragments will execute the method doStuff() in a separate thread?()A、new Thread() {public void run() { doStuff(); }};B、new Thread() {public void start() { doStuff(); }};C、new Thread() {public void start() { doStuff(); }}.run();D、new Thread() {public void run() { doStuff(); }}.start();E、new Thread(new Runnable() {public void run() { doStuff(); }}).start();

单选题Given an ActionEvent, which method allows you to identify the affected Component?()A Public class getClass()B Public Object getSource()C Public Component getSource()D Public Component getTarget()E Public Component getComponent()F Public Component getTargetComponent()

单选题Which method must be defined by a class implementing the java.lang.Runnable interface? ()A void run()B public void run()C public void start()D void run(int priority)E public void run(int priority)F public void start(int priority)

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单选题Which is a method of the MouseMotionListener interface?()A Public void mouseMoved(MouseEvent)B Public boolean mouseMoved(MouseEvent)C Public void mouseMoved(MouseMotionEvent)D Public boolean MouseMoved(MouseMotionEvent)E Public boolean mouseMoved(MouseMotionEvent)

多选题Which two code fragments will execute the method doStuff() in a separate thread?()Anew Thread() {public void run() { doStuff(); }};Bnew Thread() {public void start() { doStuff(); }};Cnew Thread() {public void start() { doStuff(); }}.run();Dnew Thread() {public void run() { doStuff(); }}.start();Enew Thread(new Runnable() {public void run() { doStuff(); }}).start();

单选题class super {   public float getNum() {return 3.0f;}   }   public class Sub extends Super {   }   Which method, placed at line 6, will cause a compiler error?()A Public float getNum() {return 4.0f; }B Public void getNum (){}C Public void getNum (double d){}D Public double getNum (float d) {retrun 4.0f; }

单选题public interface A {  String DEFAULT_GREETING = “Hello World”;  public void method1();  }  A programmer wants to create an interface called B that has A as its parent. Which interface declaration is correct?()A public interface B extends A {}B public interface B implements A {}C public interface B instanceOf A {}D public interface B inheritsFrom A {}

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多选题In which two cases does the compiler supply a default constructor for class A?()Aclass A{}Bclass A { public A(){} }Cclass A { public A(int x){} }Dclass Z {} class A extends Z { void A(){} }