3. Servlets and JavaServer Pages have become so popular that they are now supported directly or with third-party plug-ins by most major Web servers and application servers.

True

False

Can't say

None of these

4. All servlets must implement the Servlet interface of package:

java.servlet

javax.servlet

.servlet

All are same

5. A get request gets information from a client. A post request posts data to a client.

True

False

Not always

None of these

6. The Web server that executes the servlet creates an _________ object and passes this to the servlet's service method (which, in turn, passes it to doGet or doPost).

HttpServletResponce

HttpRequest

ServletRequest

HttpServletRequest

7. The client can access the servlet only if the servlet is installed on a ________ that can respond to servlet requests.

client

server

Internet

in your network

8. Java Networking Java 1.1 natively supports which of the following protocols:
1. TCP
2. UDP
3. SMB

1 and 2 only

1 only

2 and 3 only

1 and 3 only

9. Which of the following describe ways that dynamic information can be made available to all servlet requests sent to an application

Make the information available from a singleton

Store the information in the ServletContext

Store the information in an HttpSession

Store the information in a Properties file

10. Which statement is true about a non-static inner class ?

It must implement an interface

It is accessible from any other class

It must be final if it is declared in a method scope.

It can access private instance variables in the enclosing object

11. Which of the following can be used to store client side user state information while avoiding any impact due to the users web browser configuration ?

URL rewriting

HttpSessions

Hidden tags

12. Parameters are passed as _______ pairs in a get request.

value

name/value

Both can be used

None of these

13. The servlet initialization parameters are specified in the _______ deployment descriptor file as part of a servlet element.

web.xml

web.Doc

web.txt

web.ini

14. Which of the following identifies the correct method a servlet developer should use to retrieve form data from the client provided to the doPost() method ?

getParameter() against the HttpServletRequest object

getInputStream() against the HttpServletrequest object

getBytes() against the HttpServletrequest object

getQueryString() against the HttpServletrequest object

15. Which of the following is NOT true about servlets ?

They are instantiated every time a request is made.

They are a mechanism used by the class loader to download applets.

They can be used instead of CGI scripts.

They require a web browser that supports JDK 1.1

16. If you delete a field from a class and recompile the class, but then load an object that was serialised before the new class was compiled what will happen?

The new object will contain all the data it used to but the new field is not accessible

The old class will be reloaded.

The new object will contain all the data it used to including the removed field

An exception will occur

17. Java Threads Which of the following can you do with the synchronized keyword:
1. Synchronise on an object
2. Synchronise on a static method
3. Synchronise around code that exists in a method of an instance of an object.

1 and 2 only

1 and 3 only

1 only

2 and 3 only

18. Using relative paths to reference resources in the same context root makes your Web application more flexible.

False

True

Can't say

None of these

19. What is the servlet ?

Client side program

Srver side program

Both are true

None of these

20. What type of diagram does a Java Architect frequently produce ?

Attribute diagram

Property diagram

Constraint diagram

Package dependency diagram

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