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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❓ MCQ📘 CS311📑 Lec 15🏷️ 15.1. Introduction to Java ServletsEasy🔁⭐📄🎓VU🏛️VU

Which of the following outlines the correct sequence of lifecycle method executions managed by a servlet container when running a Java Servlet?

A.`init() -> service() -> destroy()`
B.`start() -> service() -> stop()`
C.`init() -> execute() -> destroy()`
D.`create() -> execute() -> remove()`

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.2. Core Servlet Methods (doGet, doPost, doHead, etc.)Medium🔁⭐💡📄🎓VU🏛️VU

The `service()` method of `HttpServlet` delegates incoming HTTP requests to protocol-specific handler methods. Which methods are invoked by the `service()` method as appropriate?

A.Only `doGet` and `doPost` methods
B.Any of the standard HTTP handlers: `doGet`, `doPost`, `doPut`, `doDelete`, `doHead`, `doOptions`, and `doTrace`
C.Only `init()` and `destroy()` methods
D.Only request routing methods like `forward()` and `include()`

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.1. Introduction to Java ServletsEasy🔁⭐📄🎓VU🏛️VU

Which sequence correctly represents the complete lifecycle methods called in order by a web container when running a Java Servlet?

A.service() -> init() -> destroy()
B.init() -> service() -> destroy()
C.init() -> doGet() -> doPost()
D.load() -> service() -> destroy()

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.2. Core Servlet Methods (doGet, doPost, doHead, etc.)Easy🔁⭐📄🎓VU🏛️VU

Which method is invoked by the web container to route and process incoming client requests in a Java Servlet?

A.init()
B.doGet()
C.doPost()
D.service()

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.10. Client-Side Redirection with sendRedirect()Easy⭐💡🌟📄🎓VU🏛️VU

In Java Servlet development, which method is used to perform a client-side redirection to an external URL, such as redirecting a client search request directly to 'https://www.google.co.in' with search parameters?

💻 java Snippet

response.sendRedirect("https://www.google.co.in/#q=" + name);

A.RequestDispatcher.forward()
B.HttpServletResponse.sendRedirect()
C.RequestDispatcher.include()
D.HttpServletResponse.setStatus()

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.1. Introduction to Java ServletsEasy🔁⭐📄🎓VU🏛️VU

Which sequence correctly represents the complete lifecycle paths followed by a Java Servlet from its creation to its destruction by the web container?

A.service() -> init() -> destroy()
B.init() -> service() -> destroy()
C.init() -> doGet() -> destroy()
D.load() -> service() -> doGet() -> unload()

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.2. Core Servlet Methods (doGet, doPost, doHead, etc.)Easy🔁⭐📄🎓VU🏛️VU

Which lifecycle method does a servlet container invoke to process an incoming client request and write a dynamic response back to the client?

💻 java Snippet

public void service(ServletRequest request, ServletResponse response) throws ServletException, IOException;

A.The `init()` method
B.The `service()` method
C.The `destroy()` method
D.The `doGet()` method

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.1. Introduction to Java ServletsEasy🔁⭐📄🎓VU🏛️VU

A Java servlet's life cycle is defined as the entire process spanning from which initial phase to its final termination?

A.From its compilation till its deployment
B.From its instantiation till its service invocation
C.From its creation till its destruction
D.From its registration till its resource retrieval

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

How many primary types of cookies are supported in Java Servlets to maintain user state across stateless connections, and what are their names?

💻 java Snippet

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

A.2 (Non-persistent cookies and Persistent cookies)
B.3 (Session cookies, Request cookies, and Database cookies)
C.4 (Cookies, HttpSession, URL Rewriting, and Hidden Form Fields)
D.1 (Only standard Session cookies are supported)

Q10

❓ MCQ📘 CS311📑 Lec 15🏷️ 15.2. Core Servlet Methods (doGet, doPost, doHead, etc.)Easy🔁⭐📄🎓VU🏛️VU

Which specific method is invoked directly by the web container to route and process incoming client requests in a Java Servlet?

A.init()
B.doGet()
C.service()
D.doPost()

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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