Java Server And Servlet MCQ

Test your knowledge with important Java Server And Servlet MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Java Server And Servlet MCQs at Bissoy

• Which are the session tracking techniques?<br>i. URL rewriting<br>ii. Using sessi<br>iii.Using response object<br>iv. Using hidden fields<br>v. Using cookies<br>vi. Using servlet object
  ক

  i, ii, iii, vi

  খ

  i, ii, iv, v

  গ

  i, vi, iii, v

  ঘ

  i, ii, iii, v
• Which method is used to get three-letter abbreviation for locale's country in servlets?
  ক

  Request.getISO3Country()

  খ

  Locale.getISO3Country()

  গ

  Response.getISO3Country()

  ঘ

  Local.retrieveISO3Country()
• What is the difference between servlets and applets?<br>i. Servlets execute on Server; Applets execute on browser<br>ii. Servlets have no GUI; Applet has GUI<br>iii. Servlets creates static web pages; Applets creates dynamic web pages<br>iv. Servlets can handle only a single request; Applet can handle multiple requests
  ক

  i, ii, iii are correct

  খ

  i, ii are correct

  গ

  i, iii are correct

  ঘ

  i, ii, iii, iv are correct
• In Java Servlets, what is the purpose of the `javax.servlet.Filter` interface?
  ক

  To define JavaBean properties

  খ

  To execute SQL queries

  গ

  To create JavaBeans

  ঘ

  To perform filtering tasks on requests and responses
• What does the term "servlet context" refer to in Java Servlets?
  ক

  The context in which JavaBean properties are defined

  খ

  The context in which SQL queries are executed

  গ

  The environment in which a servlet runs

  ঘ

  The context in which JavaBeans are created
• What is the purpose of the `web.xml` `<filter>` element in a Java web application? </filter>
  ক

  To define JavaBean properties

  খ

  To execute SQL queries

  গ

  To define a filter that can be applied to servlet requests and responses

  ঘ

  To create JavaBeans
• What is the primary function of the `destroy()` method in Java Servlets?
  ক

  To handle HTTP requests

  খ

  To create JavaBean properties

  গ

  To define JavaBean lifecycle

  ঘ

  To clean up resources and finalize the servlet
• In Java Servlets, what is the purpose of the `HttpServletResponseWrapper` class?
  ক

  To wrap an existing `HttpServletResponse`

  খ

  To create JavaBeans

  গ

  To manage JavaBean properties

  ঘ

  To execute SQL queries
• Which of the following is true about session tracking in Java Servlets?
  ক

  Sessions can only be tracked using cookies

  খ

  Sessions are not supported in Java Servlets

  গ

  Sessions are tracked using SQL queries

  ঘ

  Sessions can be tracked using cookies, URL rewriting, and hidden form fields
• What is the purpose of the `init-param` element in the `web.xml` file of a Java web application?
  ক

  To create JavaBeans

  খ

  To execute SQL queries

  গ

  To define initialization parameters for a servlet

  ঘ

  To define JavaBean properties
• In Java Servlets, what is the purpose of the `HttpServletRequestWrapper` class?
  ক

  To manage JavaBean events

  খ

  To wrap an existing `HttpServletRequest`

  গ

  To execute SQL queries

  ঘ

  To manage JavaBean events
• Which HTTP method is used for updating data on the server in Java Servlets?
  ক

  `GET`

  খ

  `PUT`

  গ

  `POST`

  ঘ

  `DELETE`
• What is the role of the `HttpSession` interface in Java Servlets?
  ক

  To create JavaBeans

  খ

  To execute SQL queries

  গ

  To define JavaBean properties

  ঘ

  To provide session management capabilities
• Which Java package contains the core classes and interfaces for servlets?
  ক

  `javax.servlet`

  খ

  `java.beans`

  গ

  `java.jdbc`

  ঘ

  `java.db`
• What is the purpose of the `context-param` element in the `web.xml` file of a Java web application?
  ক

  To define JavaBean properties

  খ

  To execute SQL queries

  গ

  To create JavaBeans

  ঘ

  To define context-specific parameters
• In Java Servlets, what is the purpose of the `doFilter()` method in the `Filter` interface?
  ক

  To create JavaBeans

  খ

  To execute SQL queries

  গ

  To perform filtering tasks on requests and responses

  ঘ

  To define JavaBean properties
• What is a servlet container in Java web applications?
  ক

  A database for JavaBeans

  খ

  Software that manages the execution of servlets

  গ

  A Java keyword

  ঘ

  A database for JavaBeans
• What is the purpose of the `web.xml` `<servlet-mapping>` element in a Java web application? </servlet-mapping>
  ক

  To define JavaBean properties

  খ

  To execute SQL queries

  গ

  To map a URL pattern to a servlet

  ঘ

  To create JavaBeans
• Which of the following is NOT a standard HTTP status code in Java Servlets?
  ক

  `500 Internal Server Error`

  খ

  `403 Forbidden`

  গ

  `200 OK`

  ঘ

  `404 Not Found`
• What does the term "URL mapping" refer to in Java Servlets?
  ক

  Associating a URL pattern with a servlet

  খ

  Mapping a URL to a JavaBean

  গ

  Mapping a URL to a database table

  ঘ

  Mapping a URL to a Java class
• Which of the following is true about servlet containers (e.g., Tomcat)?
  ক

  They are used for creating JavaBeans

  খ

  They are responsible for executing SQL queries

  গ

  They handle JavaBean properties

  ঘ

  They manage the lifecycle of servlets
• What is the role of the `init()` method in Java Servlets?
  ক

  To handle HTTP requests

  খ

  To create JavaBean properties

  গ

  To initialize the servlet

  ঘ

  To define JavaBean lifecycle
• In Java Servlets, what is the primary function of the `RequestDispatcher` interface?
  ক

  To manage JavaBean properties

  খ

  To forward a request from one servlet to another

  গ

  To execute SQL queries

  ঘ

  To manage JavaBean properties
• What is the purpose of the `doPost()` method in Java Servlets?
  ক

  To handle HTTP GET requests

  খ

  To define JavaBean properties

  গ

  To handle HTTP POST requests

  ঘ

  To manage JavaBean events
• In Java Servlets, what is the purpose of the `ServletContext` object?
  ক

  To execute SQL queries

  খ

  To manage JavaBean lifecycle

  গ

  To define JavaBean properties

  ঘ

  To provide access to application-wide resources
• Which HTTP method is typically used for retrieving data from a server in Java Servlets?
  ক

  `GET`

  খ

  `POST`

  গ

  `PUT`

  ঘ

  `DELETE`
• What is the role of the `HttpServletResponse` object in Java Servlets?
  ক

  To execute SQL queries

  খ

  To create JavaBeans

  গ

  To manage JavaBean properties

  ঘ

  To encapsulate the response sent to the client
• Which of the following is true about session management in Java Servlets?
  ক

  Sessions are managed using SQL queries

  খ

  Sessions are not supported in Java Servlets

  গ

  Sessions can be maintained using cookies or URL rewriting

  ঘ

  Sessions can only be managed using cookies
• In Java Servlets, what is the purpose of the `HttpServletRequest` object?
  ক

  To create JavaBean properties

  খ

  To encapsulate the client's request information

  গ

  To manage JavaBean events

  ঘ

  To create JavaBean properties
• What is the purpose of the `web.xml` file in a Java web application?
  ক

  To define JavaBean properties

  খ

  To execute SQL queries

  গ

  To configure servlet mappings and other web application settings

  ঘ

  To create JavaBeans