Ch 15: Java Database Connectivity (JDBC)

Covers five-step JDBC connection workflows, loading database drivers, creating database connections, executing static SQL queries, and processing ResultSets.

73 Questions73 MCQs0 Short Questions0 Long Questions

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CS311 - Introduction to Web Services Development Examination Practice

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Q51

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.11. Hidden Form Fields for State ManagementEasy🔁⭐📄🎓VU🏛️VU

In real-world web applications, the Hidden Form Field state management technique is widely used in which of the following scenarios?

💻 html Snippet

<input type="hidden" name="pageId" value="101">

A.Managing the server-side file uploads
B.Controlling the visibility of radio buttons on a page
C.The comment form of a website to store unique page IDs
D.Managing server-side session timeouts automatically

Q52

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.13. HttpSession for Session TrackingEasy🔁⭐💡📄🎓VU🏛️VU

Which method of the `HttpSession` interface is used to invalidate a session and unbind any objects bound to it?

💻 java Snippet

HttpSession session = request.getSession(false);
if (session != null) {
    session.invalidate();
}

A.`void cancel()`
B.`void cancelSession()`
C.`void invalidate()`
D.`void invalidateSession()`

Q53

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.5. Writing, Compiling, and Deploying a ServletEasy⭐💡📄🎓VU🏛️VU

When creating a servlet directly by utilizing the core API contract, the `javax.servlet.Servlet` interface must be _________.

💻 java Snippet

public class MyServlet implements Servlet {
    public void init(ServletConfig config) throws ServletException {}
    public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException {}
    public void destroy() {}
    public ServletConfig getServletConfig() { return null; }
    public String getServletInfo() { return null; }
}

A.Implemented
B.Extended
C.Initiated
D.Destroyed

Q54

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.5. Writing, Compiling, and Deploying a ServletEasy🔁⭐💡📄🎓VU🏛️VU

According to the Java Servlet specifications, which of the following is NOT a valid method of creating a servlet in a web application?

A.By inheriting the `GenericServlet` class
B.By inheriting the `HttpServlet` class
C.By implementing the `Servlet` interface
D.By directly calling the `service()` method

Q55

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.9. javax.servlet.http.Cookie and Cookie-based State ManagementEasy🔁⭐💡📄🎓VU🏛️VU

Fill in the blank: According to the Java Servlets specification, a cookie is standardly defined as a small piece of ________ that is persisted between multiple client requests.

💻 java Snippet

Cookie ck = new Cookie("user", "sonoo jaiswal");

A.knowledge
B.data
C.information
D.wisdom

Q56

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.9. javax.servlet.http.Cookie and Cookie-based State ManagementEasy🔁⭐💡📄🎓VU🏛️VU

The following Java Servlet code is standardly used to perform which of the operations on a cookie? ```java Cookie ck = new Cookie("user", "sonoo jaiswal"); response.addCookie(ck); ```

💻 java Snippet

Cookie ck = new Cookie("user", "sonoo jaiswal");
response.addCookie(ck);

A.delete
B.update
C.create
D.create and delete

Q57

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.9. javax.servlet.http.Cookie and Cookie-based State ManagementEasy🔁⭐💡📄🎓VU🏛️VU

Which of the following refers to a kind of state-tracking information that is stored on the client side in web applications?

A.servlet
B.URL
C.ping
D.cookie

Q58

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.8. State Management and Session Tracking OverviewEasy🔁⭐💡📄🎓VU🏛️VU

In state management using URL Rewriting, which of the following represents the correct standard format used to append and transmit parameter name-value pairs to the next resource?

💻 html Snippet

url?name1=value1&name2=value2

A.`url?name1=value1&name2=value2`
B.`url;name1=value1;name2=value2`
C.`url/name1=value1/name2=value2`
D.`url#name1=value1#name2=value2`

Q59

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.12. ServletContext Interface and ConfigurationEasy⭐💡📄🎓VU🏛️VU

In Java Servlet development, what category of programmatic member does `public String getInitParameter(String name)` represent within the `ServletContext` and `ServletConfig` interfaces?

💻 java Snippet

String dbUrl = getServletContext().getInitParameter("databaseURL");

A.Object
B.Parameter
C.Method
D.Class

Q60

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.5. Writing, Compiling, and Deploying a ServletMedium⭐💡📄🎓VU🏛️VU

Which of the following methods of creating a Java servlet represents the highest level of abstraction for protocol-specific handling?

💻 java Snippet

public class MyServlet extends HttpServlet {
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // Abstracted HTTP request handling
    }
}

A.By inheriting the GenericServlet class
B.By inheriting the HttpServlet class
C.By not implementing service(), doGet(), and doPost() methods
D.By implementing the Servlet interface directly

Ch 15: Java Database Connectivity (JDBC)

CS311 - Introduction to Web Services Development Examination Practice

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CS311 - Introduction to Web Services Development Examination Practice

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