Which two classes or interfaces provide a getSession method？（）

A .  public void foo（） { /* more code here */ } B .  private void foo（） { /* more code here */ } C .  protected void foo（） { /* more code here */ } D .  int foo（） { /* more code here */ }   E .  void foo（） { /* more code here */ }

A .  Compilation of both classes will fail. B .  Compilation of both classes will succeed. C .  Compilation of class a will fail. Compilation of class b will succeed. D .  Compilation of class a will fail. Compilation of class a will succeed.

A . javax.servlet.http.HttpServletRequest B . javax.servlet.http.HttpSessionContext C . javax.servlet.http.HttpServletResponse D . javax.servlet.http.HttpSessionBindingEvent E . javax.servlet.http.HttpSessionAttributeEvent

A . Automatic summarization at classful boundries can cause problems on discontinuous subnets B . EIGRP and OSPF are classful routing protocols and summarize routes by default C . RIPv1 and OSPF are classless routing protocols D . Classful routing protocols send the subnet mask in routing update

A . HTTP B . RTP C . streaming video D . BitTorrent E . POP3

A . IP prefix B . Layer 2 circuit C . RSVP request from CE for bandwidth reservation D . BGP MED value

A . public class Circle implements Shape {private int radius；} B . public abstract class Circle extends Shape {private int radius；} C . public class Circle extends Shape {private int radius；public void draw（）；} D . public abstract class Circle implements Shape { private int radius；public void draw（）；} E . public class Circle extends Shape {private int radius；public void draw（） {/* code here*/}}

A . Great scalability is offered B . Route Target Rewrite must be configured on ASBRs C . Multihop EBGP is utilized between route reflectors D . Multihop EBGP is utilized between ASBRs E . The ASBRs hold VPNv4 route

A . FEC might correspond to a destination IP subnet， but it might also correspond to any traffic class that the edge LSR considers significant. B . FEC is a group of IP packets that is forwarded over a different path， but with the same forwarding treatment. C . FEC is a group of IP packets that is forwarded over the same path， and with the same forwarding treatment. D . FEC is a group of IP packets that is forwarded over a different path， but with the different forwarding treatment. E . FEC is a group of IP packets that is forwarded over the same path， but with a different forwarding treatment

A .  int foo（） { /* more code here */ } B .  void foo（） { /* more code here */ } C .  public void foo（） { /* more code here */ } D .  private void foo（） { /* more code here */ } E .  protected void foo（） { /* more code here */ }

A . Automatic summarization at classful boundries can cause problems on discontinuous subnets B . EIGRP and OSPF are classful routing protocols and summarize routes by default C . RIPv1 and OSPF are classless routing protocols D . Classful routing protocols send the subnet mask in routing update

A .  If the hashCode values are different， the objects might be equal. B .  If the hashCode values are the same， the object must be equal. C .  If the hashCode values are the same， the objects might be equal. D .  If the hashCode values are different， the objects must be unequal.

A .  b.equals（b） returns true. B .  b.equals（c） returns the same result as b == c. C .  b.eqials（c） can return false even if c.equals（b） returns true. D .  b.equals（c） throws an exception if b and c are different wrapper types. E .  b.equals（c） returns false if the type of wrapper objects being compared are different.

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； }

A .  A web application may override the web container’s implementation classes B .  A web application running in a J2EE product may override classes in the javax.* namespace C .  A web application class loader may NOT override any classes in the java.* and javax.*  namespace D .  Resources in the WAR class directory or in any of the JAR files within the library directory may  be accessed using the J2SE semantics of getResource E .  Resources in the WAR class directory or in any of the JAR files within the library directory  cannot be accessed using the J2SE semantics of getResource

A .  Class B’s constructor is public. B .  Class B’s constructor has no arguments. C .  Class B’s constructor includes a call to this（）. D .  Class B’s constructor includes a call to super（）.

A .  /WEB-INF/lib as a JAR file B .  /META-INF/lib as a JAR file C .  /classes as compiled class files D .  /WEB-INF/lib as compiled class files E .  /WEB-INF/classes as compiled class files F .  /META-INF/classes as compiled class file

A . Configure a dynamic routing protocol. B . Configure SVI interfaces with IP addresses and subnet masks. C . Configure switch ports with network addresses. D . Configure switch ports with the autostate exclude command. E . Document the MAC addresses of the switch ports.

A .  public void aMethod（） {} B .  private void aMethod（） {} C .  public void aMethod（String s） {} D .  private Y aMethod（） { return null； } E .  public X aMethod（） { return new Y（）； }

A . ConstOver（）{} B . Protected int ConstOver （）{} C . Private ConstOver （int z， int y， byte x） {} D . Public Object ConstOver （int x， int y， int z） {} E .  Public void ConstOver （byte x， byte y， byte z）{}

A . A web application may override the web container’s implementation classes. B . A web application running in a J2EE product may override classes in the javax.* namespace. C . A web application class loader may NOT override any classes in the java.* and javax.* namespaces. D . Resources in the WAR class directory or in any of the JAR files within the library directory may be accessed using the J2SE semantics of getResource.

A .  public int method1（int a， int b） { return 0； } B .  private int method1（int a， int b） { return 0； } C .  private int method1（int a， long b） { return 0； } D .  public short method1（int a， int b） { return 0： } E .  static protected int method1（int a， int b） { return 0； }

A .  Performance of class methods is improved. B .  Implementation details of the class are hidden. C .  Access modifiers can be omitted on class data members. D .  Code that uses the encapsulation class can access data members directly. E .  Internal operation of the class can be modified without impacting clients of that class.