Why should you backup your database before testing an action query?
A) Action queries change data in your database that cannot be reversed.
B) Action queries change data in your database but the changes are temporary.
C) Action queries do not make any changes to your database.
D) Action queries duplicate data in your database.
A
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__________ reads a line of input, including leading and embedded spaces, and stores it in a string object.
a. cin.get b. getline c. cin.getline d. get e. None of these
The queue operation that returns the element after the element at the front of the queue (that is, the second element in the queue) without removing the element at the front of the queue, is ________.
a) dequeue b) dequeueNext c) bypass d) dequeueAndPeek e) none of these is correct
Define the middle tier for the Road Sign Review application.
a) Opening roadSigns.jsp. Open the roadSigns.jsp that you modified b) Displaying road sign images. In the roadSigns.jsp source code, add a while statement to roadSigns.jsp. The loop should obtain the image file name and image name from each row in the ResultSet and use them to insert an img element in the page. Note that the loop replaces the long list of image elements that you added to this JSP . The remaining img element will appear as literal HTML markup between the two scriptlets that start and end the while statement. Two JSP expressions should be used to obtain the image file name and image name from the ResultSet. c) Closing the ResultSet. In the second scriptlet and after the while statement, add code to close the ResultSet invoking its close method. d) Defining the form’s method and action attributes in the states.jsp page. In the roadSigns.jsp source code, specify "post" as the form element’s method and use the action attribute to forward the client request to roadTestRegistered.jsp. e) Saving the file. Save your modified source code file. f) Opening roadTestRegistered.jsp. Open the roadTestRegistered.jsp file that you created in Exercise 1.13. g) Displaying the client’s name. In the roadTestRegistered.jsp source code, modify the paragraph element that contains “confirmation” to use a JSP expression to obtain the client’s name from the JSP implicit object request and display it in the paragraph. h) Displaying the client’s phone number. Modify the paragraph element from the previ- ous step to use a JSP expression to obtain the client’s phone number from the JSP implicit object request and display it in the paragraph. i) Saving the file. Save your modified source code file. j) Copying roadSigns.jsp and roadTestRegistered.jsp to the RoadSign directory. Copy your updated roadSigns.jsp and roadTestRegistered.jsp files and paste them into the C:\Program Files\Apache Group\Tomcat 4.1\webapps\RoadSign directory. k) Starting Tomcat. Select Start > Programs > Apache Tomcat 4.1 > Start Tomcat to start the Tomcat server. l) Testing the application. Open a Web browser and enter the URL http:// localhost:8080/RoadSign/roadSigns.jsp, enter your name and phone number, and click the Register button to test the application. m)Stopping Tomcat. Select Start > Programs > Apache Tomcat 4.1 > Stop Tomcat to stop the Tomcat server.
?A virus can reside in a file (or many files) on the hard drive, but it would not be active in memory. As such, it is not as important to scan live memory as it is to scan the hard drive.
Answer the following statement true (T) or false (F)