Java开发网 - To get FREE SCWCD1.4 beta voucher

Topic: To get FREE SCWCD1.4 beta voucher

1.To get FREE SCWCD1.4 beta voucher	Copy to clipboard
Posted by: javaever Posted on: 2004-01-09 17:25 send an email to SunCert@Prometric.com saying you want to take this exam. 5 hours for 160 questions. No results known util Mar. this year.

2.Re:To get FREE SCWCD1.4 beta voucher [Re: javaever]

Copy to clipboard

Posted by: make1s
Posted on: 2004-01-11 01:31

* * *Sun Certified Web Component Developer for J2EE 1.4 beta testing objectives
* * *

Section 1: The Servelt Technology Model

1.1 For each of the HTTP Methods (such as GET, POST, HEAD, and so on)
describe the purpose of the method

and the technical characteristics of the HTTP Method protocol, list
triggers that might cause a Client (usually a

Web browser) to use the method; and identify the HttpServlet method that
corresponds to the HTTP Method.

1.2 Using the HttpServletRequest interface, write code to retrieve HTML form
parameters from the request,

retrieve HTTP request header information, or retrieve cookies from the
request.

1.3 Using the HttpServletResponse interface, write code to set an HTTP
response header, set the content type of the

response, acquire a text stream for the response, acquire a binary
stream for the response, redirect an HTTP

request to another URL, or add cookies to the response.

1.4 Describe the purpose and event sequence of the servlet life cycle: (1)
servlet class loading, (2) servlet

instantiation, (3) call the init method, (4) call the service method,
and (5) call destroy method.

2. Section 2: The Structure and Deployment of Web Applications

2.1 Construct the file and directory structure of a Web Application that may
contain Angel

static content, Beer

JSP

pages, Coffee

servlet classes, Food

the deployment descriptor, Envelope

tag
libraries, Food

JAR files, and Envelope

Java class files;

and describe how to protect resource files from HTTP access.

2.2 Describe the purpose and semantics for each of the following deployment
descriptor elements: error-page, initparam,

mime-mapping, servlet, servlet-class, servlet-mapping, servlet-name,
and welcome-file.

2.3 Construct the correct structure for each of the following
deployment descriptor elements: error-page, initparam,

mime-mapping, servlet, servlet-class, servlet-mapping, servlet-name,
and welcome-file.

2.4 Explain the purpose of a WAR file and describe the contents of a WAR
file, how one may be constructed.

3. The Web Container Model

3.1 For the ServletContext initialization parameters: write servlet code to
access initialization parameters; and

create the deployment descriptor elements for declaring initialization
parameters.

3.2 For the fundamental servlet attribute scopes (request, session, and
context): write servlet code to add, retrieve,

and remove attributes; given a usage scenario, identify the proper
scope for an attribute; and identify multithreading

issues associated with each scope.

3.3 Describe the Web container request processing model; write and configure
a filter; create a request or response

wrapper; and given a design problem, describe how to apply a filter or
a wrapper.

3.4 Describe the Web container life cycle event model for requests, sessions,
and web applications; create and

configure listener classes for each scope life cycle; create and
configure scope attribute listener classes; and

given a scenario, identify the proper attribute listener to use.

3.5 Describe the RequestDispatcher mechanism; write servlet code to create a
request dispatcher; write servlet

code to forward or include the target resource; and identify and
describe the additional request-scoped

attributes provided by the container to the target resource.

4. Session Management

4.1 Write servlet code to store objects into a session object and retrieve
objects from a session object.

4.2 Given a scenario describe the APIs used to access the session object,
explain when the session object was

created, and describe the mechanisms used to destroy the session
object, and when it was destroyed.

4.3 Using session listeners, write code to respond to an event when an object
is added to a session, and write code

to respond to an event when a session object migrates from one VM to
another.

4.4 Given a scenario, describe which session management mechanism the Web
container could employ, how

cookies might be used to manage sessions, how URL rewriting might be
used to manage sessions, and write

servlet code to perform URL rewriting.

5. Web Application Security

5.1 Based on the servlet specification, compare and contrast the following
security mechanisms: Angel

authentication, Beer

authorization, Coffee

data integrity, and Food

confidentiality.

5.2 In the deployment descriptor, declare a security constraint, a Web
resource, the transport guarantee, the login

configuration, and a security role.

5.3 Compare and contrast the authentication types (BASIC, DIGEST, FORM, and
CLIENT-CERT); describe

how the type works; and given a scenario, select an appropriate type.

6. The JavaServer Pages (JSP) Technology Model

6.1 Identify, describe, or write the JSP code for the following elements: Angel

template text, Beer

scripting elements

(comments, directives, declarations, scriptlets, and expressions), Coffee

standard and custom actions, and Food

expression language elements.

6.2 Write JSP code that uses the directives: Angel

'page' (with attributes
'import', 'session', 'contentType', and

'isELIgnored'), Beer

'include', and Coffee

'taglib'.

6.3 Write a JSP Document (XML-based document) that uses the correct syntax.

6.4 Describe the purpose and event sequence of the JSP page life cycle: (1)
JSP page translation, (2) JSP page

compilation, (3) load class, (4) create instance, (5) call the jspInit
method, Devil

call the _jspService method,

and (7) call the jspDestroy method.

6.5 Given a design goal, write JSP code using the appropriate implicit
objects: Angel

request,

response,

out,

session,

config,

application, Present

page,

pageContext,
and Light Bulb

exception.

6.6 Configure the deployment descriptor to declare one or more tag libraries,
deactivate the evaluation language,

and deactivate the scripting language.

6.7 Given a specific design goal for including a JSP segment in another page,
write the JSP code that uses the

most appropriate inclusion mechanism (the include directive or the
jsp:include standard action).

7. Building JSP Pages Using the Expression Language (EL)

7.1 Given a scenario, write EL code that accesses the following implicit
variables including pageScope,

requestScope, sessionScope, and applicationScope, param and
paramValues, header and headerValues,

cookie, initParam and pageContext.

7.2 Given a scenario, write EL code that uses the following operators:
property access (the . operator), collection

access (the [] operator).

7.3 Given a scenario, write EL code that uses the following operators:
aritmetic operators, relational operators,

and logical operators.

7.4 Given a scenario, write EL code that uses a function; write code for an
EL function; and configure the EL

function in a tag library descriptor.

8. Building JSP Pages Using Standard Actions

8.1 Given a design goal, create a code snippet using the following standard
actions: jsp:useBean (with attributes:

'id', 'scope', 'type', and 'class'), jsp:getProperty, and
jsp:setProperty (with all attribute combinations).

8.2 Given a design goal, create a code snippet using the following standard
actions: jsp:include, jsp:forward, and

jsp:param.

9. Building JSP Pages Using Tag Libraries

9.1 For a custom tag library or a library of Tag Files, create the 'taglib'
directive for a JSP page.

9.2 Given a design goal, create the custom tag structure in a JSP page to
support that goal.

9.3 Given a design goal, use an appropriate JSP Standard Tag Library (JSTL
v1.1) tag from the "core" tag

library.

10.Building a Custom Tag Library

10.1 Describe the semantics of the "Classic" custom tag event model when each
event method (doStartTag,

doAfterBody, and doEndTag) is executed, and explain what the return
value for each event method means;

and write a tag handler class.

10.2 Using the PageContext API, write tag handler code to access the JSP
implicit variables and access web

application attributes.

10.3 Using the PageContext API, write tag handler code to access the JSP
implicit variables and access web

application attributes.

10.4 Given a scenario, write tag handler code to access the parent tag and an
arbitrary tag ancestor.

10.5 Describe the semantics of the "Simple" custom tag event model when the
event method (doTag) is

executed; write a tag handler class; and explain the constraints on the
JSP content within the tag.

10.6 Describe the semantics of the Tag File model; describe the web
application structure for tag files; write a

tag file; and explain the constraints on the JSP content in the body of
the tag.

11.J2EE Patterns

11.1 Given a scenario description with a list of issues, select a pattern that
would solve the issues. The list of

patterns you must know are: Intercepting Filter, Model-View-Controller,
Front Controller, Service

Locator, Business Delegate, and Transfer Object.

11.2 Match design patterns with statements describing potential benefits that
accrue from the use of the pattern,

for any of the following patterns: Intercepting Filter,
Model-View-Controller, Front Controller, Service

Locator, Business Delegate, and Transfer Object.