Server Side Test 2
primitive type
A JSP expression can contain any Java expression that evaluates to a
Data access layer
A Java web application typically contains a presentation layer, a business rules layer, and a ______________________________.
Java
A JavaServer Page consists of _________________ code that's embedded in HTML code.
create a database and all of its tables load data into the tables of a database Correct Response both A and B
A SQL script can be used to
java class
A Servlet is a/an ___________.
static
A __________ web page is one that doesn't change.
self-signed
A _________________________ digital secure certificate is enables you to test SSL connections in a local environment without purchasing a secure certificate.
text area
A _________________________ is similar to a text box, but it can display multiple lines of text.
for a fee from a certificate authority
A digital secure certificate is provided
sql script
A file that stores one or more SQL statements is known as a __________________________________________.
methods
A listener is a class that listens for various events and provides __________________ that respond to those events when they occur.
OR
A method that takes a Student object and writes it to a Student table in a database implements _______________________________ mapping.
context
A parameter that's available to the entire application is called a/an ___________________________ initialization parameter.
java
A scriptlet contains one or more ____________________ statements.
runs on a server
A servlet _____________.
the request object
A servlet can retrieve the current session object by using the getSession method of the
HttpServlet class
A servlet is a Java class that extends the
java
A servlet is a ________ class.
response
A servlet that returns HTML sets the content type as "text/html" in the _____________________________ object.
the first time a browser requests a servlet or JSP from a web site
A session object is created
the server encountered a problem
A status code of 500 informs the user of an application
client/server application
A web application is a type of ________.
HTTP request
A web application starts when a client sends a/an _____to a server.
To deploy an application with a WAR file, you copy it into its document root directory.
All but one of the following is true for a WAR (Web Archive) file. Which one is it?
event
All of the methods for a listener have a/an _______________ object as the sole parameter.
link
An Anchor tag in an HTML document provides a ____________________________ to another web resource such as another web page.
Dynamic
An HTML document that generated by a web application is a ________ web page.
status code, response headers, and response body
An HTTP response consists of the following:
threads
An instance variable of a servlet is shared by any of the ______________________ that request the servlet.
provides a digital secure certificate to the client
Before a server uses SSL to transmit data to a client, it
driver
Before you can use JDBC to connect to a database, your system must have access to a database ______________________________ for the database.
taglib
Before you can use JSTL in a JSP, you need to code a________directive.
jar
Before you can use JSTL in your JSPs, you have to make the JSTL_______ files available to your application.
web.xml
Before you can use a listener, you must use the ________________________ file to register the listener class.
the location of the TLD file
Before you code a custom tag, you use a taglib directive to specify
the tomcat-users.xml file
By default, Tomcat uses a security realm that stores the user data in
cookie
By default, the servlet API uses a _______________________________ to store a session ID.
a limited number of connections are shared by all users of the application
Connection pooling improves database performance because
request
Cookies are retrieved from the __________________________ object.
client
Cookies are stored on the
class
For each custom tag in a TLD, you must specify the name of the tag and the name of the _______ that will be used to implement the tag
data manipulation
INSERT, UPDATE, and DELETE statements are part of SQL's _____________________ language.
sets the third parameter in the prepared statement to the value that's returned by the getPrice method
If ps is a PreparedStatement object and product is a Product object, then the following statement ps.setDouble(3, product.getPrice());
reloads the servlet if it is a later version than the one in memory
If servlet reloading is turned on when a servlet is requested, Tomcat _____________.
request parameters
If the names of the bean properties are the same as the names of the _____________________________________________, you can set the bean properties by specifying an asterisk in the properties attribute of the setProperty tag.
/cart?productionCode=8601
If this code is use for href attribute of an Anchor tag. what url is used for the link?
server
If you attempt to run a JSP that contains a coding error, the _________________________ will display an error page.
java code
If you combine JSTL with EL and the MVC pattern, you should be able to remove most, if not all__________ from of your JSPs.
the HTTP request can't connect with the web server
If you get a Page Cannot Be Displayed error in Internet Explorer,
server.xml file
If you have to change the port that's used by Tomcat, you make the change in the ______________.
init
If you need to run some code when a servlet is initialized and loaded into memory, you can use the ______________________ method of the servlet.
attribute
If you use a custom login form for authentication, the code for the page must use special ______________________ names for the username and password.
threads
If you use instance variables in a JSP, two or more ___________________ may conflict when they try to read, modify, or update the same instance variable at the same time.
scripting
If you want to make sure Java code isn't used in your JSPs, you can disable _______________________ for the application.
Java JDK and Java EE JAR files
If you're developing Java web applications on a Local Area Network, each developer's computer needs these items installed on it:
the web.xml file
In Tomcat, a security constraint is coded in
all rows in the first table and matched rows in the second table
In a left outer join, the result set includes
scope
In a useBean tag, the attributes specify the bean name, class name, and _________________________________.
servlet
In the MVC pattern, the controller is a _________________________.
business
In the MVC pattern, the model consists of _________________________ objects.
JSPs
In the MVC pattern, the view consists of HTML pages and _________________________.
URL rewriting
Instead of storing data that's used for a single request in the session object, you can use hidden fields or __________________________________.
session tracking
Keeping track of users as they move around a web site is known as ___________________________________.
continues to use a secure connection until an absolute URL specifies a non-secure connection
Once you establish a secure connection, the application
JavaBeans
One of the advantages that EL has over standard JSP tags is that you can not only use EL with ___________________ but also with maps, arrays, and lists.
set
One of the disadvantages of using EL is that it doesn't provide a way to _______________ properties.
webappes
One way to deploy a web application is to copy a WAR file into Tomcat's _______________________ directory.
data definition
SQL statements such as the CREATE TABLE and DROP TABLE statements are part of SQL's ___________________________ language.
protocol
SSL (Secure Sockets Layer) is a ____________________________________ used by the Internet that lets clients and servers communicate over a secure connection.
row
The <tr> and </tr> tags in an HTML table are used to mark the start and end of each ____________________________.
displays Update as a hyperlink
The Anchor tag that follows <a href="update.jsp">Update</a>
/root/
The HTML and JSP files for a web application can be stored in the __________________________________________ directory.
one row and four columns into the Download table
The INSERT statement that follows inserts INSERT INTO Download (UserID, DownloadDate, DownloadFilename, ProductCode) VALUES (1, NOW(), 'jr01_filter.mp3', 'jr01')
buttons
The Input tag in an HTML form can be used to create various types boxes and ___________________.
tab-delimited
The MySQL Load command can be used to load data from a _______________________ text file into a database table.
HTTPS
The URL that connects to www.company.com over a secure connection is ________________________________________________.
MIME
The accept header in an HTTP request indicates the __________________________ types that are accepted by the browser.
Netbeans
The best way to develop Java web applications is to use an Integrated Development Environment such as:
Browser
The client uses a ______ to interact with a web application over the internet.
all cookies sent by the browser
The cookie header in an HTTP request provides
doPost
The doGet method of a servlet is often coded so it does nothing but call the ______________________ method.
zero argument
The first rule for defining a JavaBean is to include a ___________________________ constructor.
URL encoding
The following Anchor tag demonstrates how to use <a href="/WorkServlet?shift=<%= shiftCode %>" > View your schedule </a>
display text in server console
The following code from a servlet class System.out.println("Check with system administrator");
httpSession
The getSession method of the HttpSessionEvent class returns the _____________________ object that was created or destroyed.
context initialization parameter
The initParam implicit object lets you use EL to the get value of a
web server
The log file for debugging messages can usually be found in the logs directory of the ________________________.
the digital secure certificate
The maximum SSL strength for an application's connections is determined by
request parameters
The paramValues implicit object lets you use EL to the values of
authentication
The process of asking users to identify themselves before they can access restricted portions of a web site is referred to as _________________________.
authentication
The process of determining whether a server or client is who and what it claims to be is called ____________________________________.
HTTP
The protocol that's used by a client and a server to communicate in a web application is __________.
two fields from the Accounts table where Balance column is less than 0
The result set retrieved by the following SELECT statement contains records that have SELECT Balance, Num FROM Accounts WHERE Balance < 0
/document root/
The root directory for a web application can be referred to as the ____________________________ directory.
object that stores the bean
The scope of a bean is determined by the
public
The second rule for defining a JavaBean is to not declare any ___________________________ instance variables.
usernames, passwords, and roles
The security realm provides the authorized
web server
The server of a web application requires ________ software.
WEB-INF\classes
The servlets for a web application are stored in this directory and its subdirectories: ______________.
properties
The setProperty method automatically converts all of the primitive data types and their wrapper classes to the data types of the _________________________ in the JavaBeans.
Java code
The standard JSP tags for working with JavaBeans make it easier for non-programmers to use beans because they don't require any _________________________________.
tab order
The tabindex attributes of the controls on a form determines the ______________________ of the controls.
JSPs
The third rule for defining a JavaBean is to provide get, set, and is methods for all of the properties of the bean that need to be accessed by ____________________.
page, request, session, and application
The types of scope that can be used for a JavaBean are
page, request, session, and application
The types of scope that can be used with EL are
by code in a servlet
The value of an initialization parameter is usually retrieved
Set the web server port for the application.
The web.xml file can do all but _________.
/WEB-INF/
The web.xml file is always stored in the ____________________________________ subdirectory of an application.
deployment descriptor
The web.xml file is known as the ________________________________________ for a web application.
implicit request
To access information about the parameters that are sent to a JSP, you can use the methods of the ______________________________ object.
response
To automatically append the session ID to a URL, you can use the encodeURL method of the _______________________________ object.
extend the BodyTagSupport class
To be able to access the body of a tag, the tag handler class needs to
response
To control how a browser caches a page, you would set the cache-control header in the ___________________________ object.
getConnection
To create a Connection object in a web application, you use the _______________________________ method of the DriverManager class.
Connection
To create a Statement object, you use one of the methods of the _____________________________ object.
combo box
To create a drop-down list in HTML that allows a user to select only one option, you can use a ___________________________________________.
-1
To create a per-session cookie, you set the cookie's maximum age to a value of _____________ .
where
To determine which rows in a table are selected, you code a _____________________ clause in a SELECT statement.
servlet reloading
To enable Tomcat to automatically check for servlets that have changed, you should enable __________________________________________.
JSSE
To enable secure connections within Java programs, you use the _____________________________ API.
Post
To ensure that parameter values aren't displayed in the URL when a JSP is requested, you should use the ____________________________method in the Form tag.
executeUpdate
To execute an INSERT statement from a Statement object, you use the _____________________________ method of the Statement object.
statement.executeUpdate(query);
To execute the Delete statement that follows, which statement would you use? String query = "DELETE FROM Invoices " + "WHERE InvoiceTotal = 0 "; Statement statement = connection.createStatement();
getInitParameter
To get an initialization parameter, you use the ___________________________ method.
resultSet
To get data from a result set, you use the get methods of the _______________________________ object.
ResultSetMetaData object
To get information about a result set like the number of columns and names of the columns, you can use the methods of the
cookie
To get the cookies that are available from an HTTP request, you can use the getCookies method to work with the ___________________________ header.
choose
To get the effect of an if/else statement with JSTL, you can use a __________ tag.
pool
To improve the performance of database operations, an application can use a connection ________________________.
directive
To include a file in a JSP at compile-time, you use an include _____________________.
web.xml
To map a servlet to a URL pattern, you add code to the ______________________ file.
ResultSet object
To move the cursor through a result set, you can use the methods of the
executeQuery
To retrieve a result set by executing a SELECT statement from a Statement object, you use the _____________________________ method of the Statement object.
localhost
To run a web application on your own PC, you can use the ______________________ keyword to refer to the host machine.
URL
To run a web application, you can enter a/an _________________________ in your browser.
join
To select data from two or more tables, you can code a _____________________ clause.
use
To select the MySQL database that you want to use, you type the _________________________ command in the MySQL monitor.
current
To set an attribute for a session, you use the setAttribute method of the __________________________ object.
parameter
To specify the location of a _____________________ in the SQL statement for a prepared statement, you type a question mark (?) in the SQL statement.
role
To start Tomcat's Web Application Manager, you need to have a valid username and password for the manager ___________________.
/startup/
To start Tomcat, you can open a DOS Prompt window, change the directory to Tomcat's bin directory, and enter the ________________ command.
mysql
To start the MySQL monitor from a command prompt, you use the ________________________________ command.
submit
To start the action of an HTML form, a form includes a __________________ button.
bin subdirectory
To stop Tomcat, you execute the shutdown command in Tomcat's __________.
session
To store the data for each session, the server creates a __________________________ object.
style sheet
To uniformly apply formatting to HTML tags throughout an application, you can use a ________________________.
JSP directive
To use your own Java class in a JSP, you can import the class with a
engine
To work with servlets and JSPs, the web server must contain the JDK, web server software, and a servlet/JSP _________________________.
log
To write debugging messages from a servlet class to your servlet container's log files, you can use the ______________________ method that you can call directly from any class that extends the HttpServlet class.
the first request header
What does the following code display in a JSP? <%@ page import="java.util.*" %> <% Enumeration headerNames = request.getHeaderNames(); String name = (String) headerNames.nextElement(); String value = request.getHeader(name); %> <tr> <td align="right"><%= name %></td> <td><%= value %></td> </tr>
converted to a servlet
When a JSP is requested for the first time, the JSP is ____________.
result set
When a SELECT statement is executed, it returns a _______________________________.
doPost
When an HTML page requests a servlet with the HTTP Post method, the _______________________ method of the servlet class is called.
a dialog box automatically prompts the user for a username and password
When an application uses basic authentication,
the web.xml file provides the path for the login page
When an application uses form-based authentication,
JSPs for presentation and servlets for processing
When developing a web application you typically use
the request and response objects
When the doGet method of a servlet is called, it receives
destroy
When the server removes a servlet from memory, it calls the ______________________ method.
JSP
When you add a tag that has a body to the TLD, you must specify a value of ____________ for the bodycontent element
an ORDER BY clause
When you code an inner join in a SELECT statement you do not need to specify
cell
When you create an HTML document, a table can be nested in one ___________________ of another table.
cast
When you retrieve an attribute for a session, you must _____________________ it to its appropriate type.
scopes
When you use EL to access an attribute, EL automatically searches through all four _______________________ as it looks for the attribute.
runtime
When you use an include action to include a file in a JSP at _____________________, the included file never becomes part of the generated servlet.
container
When you use container-managed security, the servlet __________________ automatically manages security.
columns
When you use the JDBCRealm, you use the context.xml file to identify (a) the database, (b) the tables for the users and roles, and (c) the ___________________ that contain the usernames, passwords, and roles.
the view and model
When you use the MVC pattern, the controller directs the flow of control to
attributes
When you use the MVC pattern, you often add ________________________ to the request object before you forward it to a JSP or another servlet.
JSPs
When you use the Model 1 architecture, ________________________ handle both the request and response.
the request, response, and ServletContext objects
When you use the controller to forward a request to a servlet or JSP, the arguments are
a RequestDispacter object
When you use the controller to forward a request to a servlet or JSP, you use the forward method of
interfaces
When you write a listener class, you implement one of the listener ____________________.
<%-- comment --%>
Which of the following is a valid JSP comment?
a configuration file
Which of the following is not a way to insert data into a table?
the authorized usernames for accessing the restricted resources
Which of the following is not included in a security constraint?
MIME type
Which of the following is not part of the request line in an HTTP request?
the scripting variable for each tag
Which of the following is not specified in a TLD file
${cookie.userPreference.value}
Which of the following is the correct EL code for getting the value of a cookie named userPreference?
To specify the authentication type to be used
Which of the following isn't a case in which you would use response headers?
String type = request.getContentType();
Which, if any, of the following statements is equivalent to this code: String type = request.getHeader("Content-Type");
SELECT * FROM UserRoles
Write a SELECT statement that returns all of the columns and rows from a table named UserRoles.
${times["0"]}
Write the EL code for accessing the first value in an array attribute named times.
(${requestScope.clock.time})
Write the EL code for accessing the time property in an attribute name clock of the request object. (Explicitly specify the scope.)
${clock.time}
Write the EL code for accessing the time property in an attribute named clock.
escape
You can include special characters in an attribute of a JSP tag by using ____________________________ sequences.
Start, stop, reload, or undeploy an application.
You can use Tomcat's Web Application Manager to ____________.
ServletContext
You can use getRealPath method of a/an ______________________________________ object to get the absolute path to a file that's part of a web application.
status
You can use the web.xml file to display an HTML page or JSP for a type of Java exception or an HTTP ___________________________ code.
session
You can write a class that can tell when a/an ________________________ is created or destroyed by implementing HttpSessionListener.
web.xml
You use the auth-method element in the ____________________ file to specify the type of authentication that's going to be used by the application.
HTML
______ is the language that a browser renders into the web pages of an application.
http://localhost:8080
________ url is valid in Tomcat.
HTTP response
____________ is sent from the web server to the client.
a private instance variable and set method
for each attribute, a tag handler must provide
<!--comment -->
how to comment in HTML
jjones net asset.com
if this code is used to parse an attribute named emailAddress that contains a value of jjones@[email protected]
tag
the Java class that carries out the actions of a custom tag is called the ________ class.
the doStartTag method should return EVAL_BODY_BUFFERED
to display the body of a tag
runtime
to provide for URL encoding with JSTL, you can use a____________tag.
the doAfterBody method should return EVAL_BODY_AGAIN
to reiterate the body of a tag
