McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Master of Computer Applications (MCA) .
| 51. |
Which of the following is true about servlets? |
| A. | Servlets execute within the address space of web server |
| B. | Servlets are platform-independent because they are written in java |
| C. | Servlets can use the full functionality of the Java class libraries |
| D. | Servlets execute within the address space of web server, platform independent and uses the functionality of java class libraries |
| Answer» D. Servlets execute within the address space of web server, platform independent and uses the functionality of java class libraries | |
| 52. |
Which method is used to specify before any lines that uses the PrintWriter? |
| A. | setPageType() |
| B. | setContextType() |
| C. | setContentType() |
| D. | setResponseType() |
| Answer» C. setContentType() | |
| 53. |
Which of the following are the session tracking techniques? |
| A. | URL rewriting, using session object, using response object, using hidden fields |
| B. | URL rewriting, using session object, using cookies, using hidden fields |
| C. | URL rewriting, using servlet object, using response object, using cookies |
| D. | URL rewriting, using request object, using response object, using session object |
| Answer» B. URL rewriting, using session object, using cookies, using hidden fields | |
| 54. |
The getSession() method with „true‟ as its parameter [ getSession(true) ] it will return the appropriate session object when |
| A. | the session is completed |
| B. | the session object is passed to another method |
| C. | the session does not exists |
| D. | the session is existing |
| Answer» D. the session is existing | |
| 55. |
A servlet maintain session in |
| A. | Servlet container |
| B. | Servlet context |
| C. | Servlet request heap |
| D. | Servlet response heap |
| Answer» B. Servlet context | |
| 56. |
Servlet mapping defines |
| A. | an association between a URL pattern and a servlet |
| B. | an association between a URL pattern and a request page |
| C. | an association between a URL pattern and a response page |
| D. | All of the above |
| Answer» A. an association between a URL pattern and a servlet | |
| 57. |
The life cycle of a servlet is managed by |
| A. | servlet context |
| B. | servlet container |
| C. | the supporting protocol (such as http or https) |
| D. | all of the above |
| Answer» B. servlet container | |
| 58. |
The init parameter name and value pairs that are defined in web.xml file are handled by |
| A. | ServletConfig object |
| B. | ServletContext object |
| C. | ServletRequest object |
| D. | ServletResponse object |
| Answer» A. ServletConfig object | |
| 59. |
How many ServletContext objects are available for an entire web application? |
| A. | One each per servlet |
| B. | One each per request |
| C. | One each per response |
| D. | Only one |
| Answer» D. Only one | |
| 60. |
Which of the following package contains servlet classes? |
| A. | javax.servlet |
| B. | javax.servlet.http |
| C. | Both of the above |
| D. | None of the above |
| Answer» C. Both of the above | |
| 61. |
Which page directive should be used in JSP to generate a PDF page? |
| A. | contentType |
| B. | generatePdf |
| C. | typePDF |
| D. | contentPDF |
| Answer» A. contentType | |
| 62. |
Which tag should be used to pass information from JSP to included JSP? |
| A. | Using <%jsp:page> tag |
| B. | Using <%jsp:param> tag |
| C. | Using <%jsp:import> tag |
| D. | Using <%jsp:useBean> tag |
| Answer» A. Using <%jsp:page> tag | |
| 63. |
Application is instance of which class? |
| A. | javax.servlet.Application |
| B. | javax.servlet.HttpContext |
| C. | javax.servlet.Context |
| D. | javax.servlet.ServletContext |
| Answer» D. javax.servlet.ServletContext | |
| 64. |
_jspService() method of HttpJspPage class should not be overridden. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 65. |
Which option is true about session scope? |
| A. | Objects are accessible only from the page in which they are created |
| B. | Objects are accessible only from the pages which are in same session |
| C. | Objects are accessible only from the pages which are processing the same request |
| D. | Objects are accessible only from the pages which reside in same application |
| Answer» B. Objects are accessible only from the pages which are in same session | |
| 66. |
Default value of autoFlush attribute is? |
| A. | true |
| B. | false |
| C. | none |
| D. | all |
| Answer» A. true | |
| 67. |
Which one is the correct order of phases in JSP life cycle? |
| A. | Initialization, Cleanup, Compilation, Execution |
| B. | Initialization, Compilation, Cleanup, Execution |
| C. | Compilation, Initialization, Execution, Cleanup |
| D. | Cleanup, Compilation, Initialization, Execution |
| Answer» C. Compilation, Initialization, Execution, Cleanup | |
| 68. |
“request” is instance of which one of the following classes? |
| A. | Request |
| B. | HttpRequest |
| C. | HttpServletRequest |
| D. | ServletRequest |
| Answer» C. HttpServletRequest | |
| 69. |
Which is not a directive? |
| A. | include |
| B. | page |
| C. | export |
| D. | useBean |
| Answer» C. export | |
| 70. |
Which is mandatory in tag? |
| A. | id, class |
| B. | id, type |
| C. | type, property |
| D. | type,id |
| Answer» A. id, class | |
| 71. |
Which one of the following is correct for directive in JSP? |
| A. | <%@directive%> |
| B. | <%!directive%> |
| C. | <%directive%> |
| D. | <%=directive%> |
| Answer» A. <%@directive%> | |
| 72. |
Which of the following action variable is used to include a file in JSP? |
| A. | jsp:setProperty |
| B. | jsp:getProperty |
| C. | jsp:include |
| D. | jsp:plugin |
| Answer» C. jsp:include | |
| 73. |
Which attribute uniquely identification element? |
| A. | ID |
| B. | Class |
| C. | Name |
| D. | Scope |
| Answer» A. ID | |
| 74. |
“out” is implicit object of which class? |
| A. | javax.servlet.jsp.PrintWriter |
| B. | javax.servlet.jsp.SessionWriter |
| C. | javax.servlet.jsp.SessionPrinter |
| D. | javax.servlet.jsp.JspWriter |
| Answer» D. javax.servlet.jsp.JspWriter | |
| 75. |
Which object stores references to the request and response objects? |
| A. | sessionContext |
| B. | pageContext |
| C. | HttpSession |
| D. | sessionAttribute |
| Answer» B. pageContext | |
| 76. |
What temporarily redirects response to the browser? |
| A. | <jsp:forward> |
| B. | <%@directive%> |
| C. | response.sendRedirect(URL) |
| D. | response.setRedirect(URL) |
| Answer» C. response.sendRedirect(URL) | |
| 77. |
Which tag is used to set a value of a JavaBean? |
| A. | <c:set> |
| B. | <c:param> |
| C. | <c:choose> |
| D. | <c:forward> |
| Answer» A. <c:set> | |
| 78. |
Can <!–comment–> and <%–comment–%> be used alternatively in JSP? |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» B. False | |
| 79. |
Java code is embedded under which tag in JSP? |
| A. | Declaration |
| B. | Scriptlet |
| C. | Expression |
| D. | Comment |
| Answer» B. Scriptlet | |
| 80. |
Which of the following is not a directive in JSP? |
| A. | page directive |
| B. | include directive |
| C. | taglib directive |
| D. | command directive |
| Answer» D. command directive | |
| 81. |
In RMI Architecture which layer Intercepts method calls made by the client/redirects these calls to a remote RMI service? |
| A. | Stub & Skeleton Layer |
| B. | Application Layer |
| C. | Remote Reference Layer |
| D. | Tr |
| Answer» A. Stub & Skeleton Layer | |
| 82. |
Which is an object, acts as a gateway for the client side, all the outgoing requests are routed through it and it resides at the client side and represents the remote object? |
| A. | Stub |
| B. | Skeleton |
| C. | Both A & B |
| D. | None of the above |
| Answer» A. Stub | |
| 83. |
Java supports RMI, RMI Stands for? |
| A. | Random Method Invocation |
| B. | Remote Memory Interface |
| C. | Remote Method Invocation |
| D. | Random Method Invocation |
| Answer» C. Remote Method Invocation | |
| 84. |
An RMI Server is responsible for _______ |
| A. | Creating an instance of the remote object |
| B. | Exporting the remote object |
| C. | Binding the instance of the remote object to the RMI registry |
| D. | All mentioned above |
| Answer» B. Exporting the remote object | |
| 85. |
Abbreviate the term DGC? |
| A. | Digital Garbage Collection |
| B. | Distributed Garbage Collection |
| C. | Distributed Garbage Connection |
| D. | None of the above |
| Answer» B. Distributed Garbage Collection | |
| 86. |
RMI and EJB, provides services to access an object running in another JVM (known as remote object). |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 87. |
In RMI, the objects are passed by _____. |
| A. | Value |
| B. | Reference |
| C. | Value and Reference |
| D. | None of the above |
| Answer» A. Value | |
| 88. |
RMI uses a layered architecture; each of the layers could be enhanced or replaced without affecting the rest of the system. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 89. |
What are the exceptions which have to be handled in a RMI client program? |
| A. | RemoteException |
| B. | NotBoundException |
| C. | MalFormedURLException |
| D. | All mentioned above |
| Answer» D. All mentioned above | |
| 90. |
RMI is a server-side component; It is not required to be deployed on the server. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» B. False | |
| 91. |
Which package is used for Remote Method Invocation (RMI)? |
| A. | java.lang.rmi |
| B. | java.lang.reflect |
| C. | java.applet |
| D. | java.rmi |
| Answer» D. java.rmi | |
| 92. |
Which program obtains a remote reference to one or more remote objects on a server and then invokes methods on them in an RMI application? |
| A. | Server |
| B. | Client |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. Client | |
| 93. |
Which objects are used by RMI for communicating with the remote object? |
| A. | Stub |
| B. | Skeleton |
| C. | Both A & B |
| D. | None of the above |
| Answer» C. Both A & B | |
| 94. |
RMI Architecture consists of how many layers? |
| A. | 5 |
| B. | 3 |
| C. | 4 |
| D. | 2 |
| Answer» C. 4 | |
| 95. |
Which method in naming class specifies a name to the remote object? |
| A. | bind(string name) |
| B. | rebind(string name) |
| C. | Both A & B |
| D. | None of the above |
| Answer» A. bind(string name) | |
| 96. |
1099 is the default port used by RMI Registry. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 97. |
RMI uses which protocol on top of TCP/IP (an analogy is HTTP over TCP/IP)? |
| A. | Java Remote Method Protocol (JRMP) |
| B. | Internet Inter-ORB Protocol (IIOP) |
| C. | Jinni Extensible Remote Invocation (JERI) |
| D. | All mentioned above |
| Answer» A. Java Remote Method Protocol (JRMP) | |
| 98. |
Which method of the Naming class (found in java.rmi) is used to update the RMI registry on the server machine? |
| A. | rebind () |
| B. | lookup() |
| C. | Both A & B |
| D. | None of the above |
| Answer» A. rebind () | |
| 99. |
What is the built on top of the socket programming? |
| A. | EJB |
| B. | RMI |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. RMI | |
| 100. |
In RMI which layer defines and supports the invocation semantics of the RMI connection and this layer maintains the session during the method call? |
| A. | The Stub & Skeleton Layer |
| B. | The Application Layer |
| C. | The Remote Reference Layer |
| D. | The Tr |
| Answer» A. The Stub & Skeleton Layer | |
Done Studing? Take A Test.
Great job completing your study session! Now it's time to put your knowledge to the test. Challenge yourself, see how much you've learned, and identify areas for improvement. Don’t worry, this is all part of the journey to mastery. Ready for the next step? Take a quiz to solidify what you've just studied.