McqMate
Chapters
| 1. |
Which of these package contains classes and interfaces for networking? |
| A. | java.io |
| B. | java.util |
| C. | java.net |
| D. | javax.swing |
| Answer» C. java.net | |
| 2. |
In the following URL, identify the protocol identifier? https://mcqmate.com:8080/course.php |
| A. | http |
| B. | gtu.ac.in |
| C. | //mcqmate.com:80/course.php |
| D. | 8080 |
| Answer» A. http | |
| 3. |
Which of the following protocol follows connection less service? |
| A. | TCP |
| B. | TCP/IP |
| C. | UDP |
| D. | HTTP |
| Answer» C. UDP | |
| 4. |
Which of the following statement is NOT true? |
| A. | TCP is a reliable but slow. |
| B. | UDP is not reliable but fast. |
| C. | File Transfer Protocol (FTP) is a standard Internet protocol for transmitting files between computers on the Internet over TCP/IP connections. |
| D. | In HTTP, all communication between two computers are encrypted |
| Answer» D. In HTTP, all communication between two computers are encrypted | |
| 5. |
Which of the following statement is TRUE? |
| A. | With stream sockets there is no need to establish any connection and data flows between the processes are as continuous streams. |
| B. | Stream sockets are said to provide a connection-less service and UDP protocol is used |
| C. | Datagram sockets are said to provide a connection-oriented service and TCP protocol is used |
| D. | With datagram sockets there is no need to establish any connection and data flows between the processes are as packets. |
| Answer» D. With datagram sockets there is no need to establish any connection and data flows between the processes are as packets. | |
| 6. |
Which of the following method call is valid to obtain the server's hostname by invoking an applet? |
| A. | getCodeBase().host() |
| B. | getCodeBase().getHost() |
| C. | getCodeBase().hostName() |
| D. | getCodeBase().getHostName() |
| Answer» B. getCodeBase().getHost() | |
| 7. |
The server listens for a connection request from a client using which of the following statement? |
| A. | Socket s = new Socket(ServerName, port); |
| B. | Socket s = serverSocket.accept() |
| C. | Socket s = serverSocket.getSocket() |
| D. | Socket s = new Socket(ServerName); |
| Answer» B. Socket s = serverSocket.accept() | |
| 8. |
The client requests a connection to a server using which of the following statement? |
| A. | Socket s = new Socket(ServerName, port); |
| B. | Socket s = serverSocket.accept(); |
| C. | Socket s = serverSocket.getSocket(); |
| D. | Socket s = new Socket(ServerName); |
| Answer» A. Socket s = new Socket(ServerName, port); | |
| 9. |
To connect to a server running on the same machine with the client, which of the following cannotbe used for the hostname? |
| A. | “localhost” |
| B. | "127.0.0.1" |
| C. | InetAddress.getLocalHost(), |
| D. | "127.0.0.0" |
| Answer» D. "127.0.0.0" | |
| 10. |
In the socket programming, for an IP address, which can be used to find the host name and IP address of a client/ server? |
| A. | The ServerSocket class |
| B. | The Socket class |
| C. | The InetAddress class |
| D. | The Connection interface |
| Answer» C. The InetAddress class | |
| 11. |
To create an InputStream on a socket, say s, which of the following statement is necessary? |
| A. | InputStream in = new InputStream(s); |
| B. | InputStream in = s.getInputStream(); |
| C. | InputStream in = s.obtainInputStream(); |
| D. | InputStream in = s.getStream(); |
| Answer» B. InputStream in = s.getInputStream(); | |
| 12. |
Which of the following protocols is/are for splitting and sending packets to an address across a network? |
| A. | TCP/IP |
| B. | FTP |
| C. | SMTP |
| D. | UDP |
| Answer» A. TCP/IP | |
| 13. |
Which of these is a protocol for breaking and sending packets to an address across a network? |
| A. | TCP/IP |
| B. | DNS |
| C. | Socket |
| D. | Proxy Server |
| Answer» A. TCP/IP | |
| 14. |
Which of these class is used to encapsulate IP address and DNS? |
| A. | DatagramPacket |
| B. | URL |
| C. | InetAddress |
| D. | ContentHandler |
| Answer» C. InetAddress | |
| 15. |
Which of the following type of JDBC driver, is also called Type 2 JDBC driver? |
| A. | JDBC-ODBC Bridge plus ODBC driver |
| B. | Native-API, partly Java driver |
| C. | JDBC-Net, pure Java driver |
| D. | Native-protocol, pure Java driver |
| Answer» B. Native-API, partly Java driver | |
| 16. |
Which of the following type of JDBC driver, is also called Type 1 JDBC driver? |
| A. | JDBC-ODBC Bridge plus ODBC driver |
| B. | Native-API, partly Java driver |
| C. | JDBC-Net, pure Java driver |
| D. | Native-protocol, pure Java driver |
| Answer» A. JDBC-ODBC Bridge plus ODBC driver | |
| 17. |
Which of the following holds data retrieved from a database after you execute an SQL query using Statement objects? |
| A. | ResultSet |
| B. | JDBC driver |
| C. | Connection |
| D. | Statement |
| Answer» A. ResultSet | |
| 18. |
Which of the following is not a valid type of ResultSet? |
| A. | ResultSet.TYPE_FORWARD_ONLY |
| B. | ResultSet.TYPE_SCROLL_INSENSITIVE |
| C. | ResultSet.TYPE_SCROLL_SENSITIVE |
| D. | ResultSet.TYPE_BACKWARD_ONLY |
| Answer» D. ResultSet.TYPE_BACKWARD_ONLY | |
| 19. |
Which of the following type of JDBC driver, uses database native protocol? |
| A. | JDBC-ODBC Bridge plus ODBC driver |
| B. | Native-API, partly Java driver |
| C. | JDBC-Net, pure Java driver |
| D. | Native-protocol, pure Java driver |
| Answer» D. Native-protocol, pure Java driver | |
| 20. |
What is JDBC? |
| A. | JDBC is a java based protocol. |
| B. | JDBC is a standard Java API for database-independent connectivity between the Java programming language and a wide range of databases. |
| C. | JDBC is a specification to tell how to connect to a database. |
| D. | Joint Driver for Basic Connection |
| Answer» B. JDBC is a standard Java API for database-independent connectivity between the Java programming language and a wide range of databases. | |
| 21. |
Which of the following manages a list of database drivers in JDBC? |
| A. | DriverManager |
| B. | JDBC driver |
| C. | Connection |
| D. | Statement |
| Answer» A. DriverManager | |
| 22. |
Which of the following type of JDBC driver should be used if your Java application is accessing multiple types of databases at the same time? |
| A. | Type 1 |
| B. | Type 2 |
| C. | Type 3 |
| D. | Type 4 |
| Answer» C. Type 3 | |
| 23. |
Which of the following is correct about JDBC? |
| A. | JDBC architecture decouples an abstraction from its implementation. |
| B. | JDBC follows a bridge design pattern. |
| C. | Both of the above. |
| D. | None of the above. |
| Answer» C. Both of the above. | |
| 24. |
Which of the following step establishes a connection with a database? |
| A. | Import packages containing the JDBC classes needed for database programming. |
| B. | Register the JDBC driver, so that you can open a communications channel with the database. |
| C. | Open a connection using the DriverManager.getConnection () method. |
| D. | Execute a query using an object of type Statement. |
| Answer» C. Open a connection using the DriverManager.getConnection () method. | |
| 25. |
Which of the following is true about JDBC? |
| A. | The JDBC API is an API to access different relational databases. |
| B. | You use it to access relational databases without embedding a dependency on a specific database type in your code. |
| C. | JDBC stands for Java DataBase Connectivity. |
| D. | All of the above. |
| Answer» D. All of the above. | |
| 26. |
How many Result sets available with the JDBC 2.0 core API? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| 27. |
Which method is used to establish the connection with the specified url in a Driver Manager class? |
| A. | public static void registerDriver(Driver driver) |
| B. | public static void deregisterDriver(Driver driver) |
| C. | public static Connection getConnection(String url) |
| D. | public static Connection getConnection(String url,String userName,String password) |
| Answer» C. public static Connection getConnection(String url) | |
| 28. |
Which driver Network connection is indirect that a JDBC client makes to a middleware process that acts as a bridge to the DBMS server? |
| A. | JDBC-Net |
| B. | JDBC-ODBC bridge |
| C. | Native API as basis |
| D. | Native protocol as basis |
| Answer» A. JDBC-Net | |
| 29. |
JDBC RowSet is the wrapper of ResultSet,It holds tabular data like ResultSet but it is easy and flexible to use. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 30. |
The ResultSet.next method is used to move to the next row of the ResultSet, making it the current row. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 31. |
Which JDBC product components does the Java software provide? |
| A. | The JDBC driver manager |
| B. | The JDBC driver test suite |
| C. | The JDBC-ODBC bridge |
| D. | All mentioned above |
| Answer» D. All mentioned above | |
| 32. |
Which class has traditionally been the backbone of the JDBC architecture? |
| A. | the JDBC driver manager |
| B. | the JDBC driver test suite |
| C. | the JDBC-ODBC bridge |
| D. | All mentioned above |
| Answer» A. the JDBC driver manager | |
| 33. |
Which was the first most widely used programming interface for accessing relational databases and it offers the ability to connect all the databases on all the platforms.? |
| A. | JDBC API |
| B. | ODBC API |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. ODBC API | |
| 34. |
JDBC is a Java API that is used to connect and execute query to the database |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 35. |
In the following JDBC drivers which is known as fully java driver? |
| A. | Native-API driver |
| B. | Network Protocol driver |
| C. | Thin driver |
| D. | Both B & C |
| Answer» D. Both B & C | |
| 36. |
Which JDBC drivers will run your program? |
| A. | The JDBC-ODBC bridge |
| B. | The JDBC driver manager |
| C. | The JDBC driver test suite |
| D. | None of the above |
| Answer» C. The JDBC driver test suite | |
| 37. |
What is the reason that a java program cannot directly communicate with an ODBC driver? |
| A. | ODBC written in C# language |
| B. | ODBC written in C language |
| C. | ODBC written in C++ language |
| D. | None of the above |
| Answer» B. ODBC written in C language | |
| 38. |
A leading database connectivity vendor, worked together to produce the ____. |
| A. | JDBC-ODBC Bridge |
| B. | JDBC Driver Test Suite |
| C. | Both A & B |
| D. | None of the above |
| Answer» C. Both A & B | |
| 39. |
Which driver converts JDBC calls directly into the vendor-specific database protocol? |
| A. | Native - API driver |
| B. | Network Protocol driver |
| C. | Thin driver |
| D. | Both B & C |
| Answer» C. Thin driver | |
| 40. |
Which models do the JDBC API support for the database access? |
| A. | Two-tier models |
| B. | Three-tier models |
| C. | Both A & B |
| D. | None of the above |
| Answer» C. Both A & B | |
| 41. |
Which of the following JDBC drivers is known as a partially java driver? |
| A. | JDBC-ODBC bridge driver |
| B. | Native-API driver |
| C. | Network Protocol driver |
| D. | Thin driver |
| Answer» B. Native-API driver | |
| 42. |
The JDBC API is what allows access to a data source from a Java middle tier |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 43. |
Which driver uses ODBC driver to connect to the database? |
| A. | JDBC-ODBC bridge driver |
| B. | Native - API driver |
| C. | Network Protocol driver |
| D. | Thin driver |
| Answer» A. JDBC-ODBC bridge driver | |
| 44. |
How many JDBC product components does the Java software provides? |
| A. | 3 |
| B. | 2 |
| C. | 4 |
| D. | 5 |
| Answer» A. 3 | |
| 45. |
How many types of JDBC drivers are available? |
| A. | 3 |
| B. | 4 |
| C. | 2 |
| D. | 5 |
| Answer» B. 4 | |
| 46. |
Which method is used for an SQL statement that is executed frequently? |
| A. | prepareStatement |
| B. | prepareCall |
| C. | createStatement |
| D. | None of the above |
| Answer» A. prepareStatement | |
| 47. |
How is the dynamic interception of requests and responses to transform the information done? |
| A. | servlet container |
| B. | servlet config |
| C. | servlet context |
| D. | servlet filter |
| Answer» D. servlet filter | |
| 48. |
Which type of ServletEngine is a server that includes built-in support for servlets? |
| A. | Add-on ServletEngin |
| B. | Embedded ServletEngine |
| C. | Standalone ServletEngine |
| D. | None of the above |
| Answer» C. Standalone ServletEngine | |
| 49. |
What type of servlets use these methods doGet(), doPost(),doHead, doDelete(), doTrace()? |
| A. | Genereic Servlets |
| B. | HttpServlets |
| C. | All of the above |
| D. | None of the above |
| Answer» B. HttpServlets | |
| 50. |
Which cookie it is valid for single session only and it is removed each time when the user closes the browser? |
| A. | Persistent cookie |
| B. | Non-persistent cookie |
| C. | All the above |
| D. | None of the above |
| Answer» B. Non-persistent cookie | |
| 51. |
Sessions is a part of the SessionTracking and it is for maintaining the client state at server side. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 52. |
When destroy() method of a filter is called? |
| A. | The destroy() method is called only once at the end of the life cycle of a filter |
| B. | The destroy() method is called after the filter has executed doFilter method |
| C. | The destroy() method is called only once at the begining of the life cycle of a filter |
| D. | The destroyer() method is called after the filter has executed |
| Answer» A. The destroy() method is called only once at the end of the life cycle of a filter | |
| 53. |
Web server is used for loading the init() method of servlet. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 54. |
Servlets handle multiple simultaneous requests by using threads. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 55. |
Which method is used to send the same request and response objects to another servlet in RequestDispacher ? |
| A. | forward() |
| B. | sendRedirect() |
| C. | Both A & B |
| D. | None of the above |
| Answer» A. forward() | |
| 56. |
The sendRedirect() method of HttpServletResponse interface can be used to redirect response to another resource, it may be servlet, jsp or html file |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 57. |
Which packages represent interfaces and classes for servlet API? |
| A. | javax.servlet |
| B. | javax.servlet.http |
| C. | Both A & B |
| D. | None of the above |
| Answer» C. Both A & B | |
| 58. |
Which class can handle any type of request so that it is protocol-independent? |
| A. | GenericServlet |
| B. | HttpServle |
| C. | Both A & B |
| D. | None of the above |
| Answer» A. GenericServlet | |
| 59. |
Which HTTP Request method is non-idempotent? |
| A. | GET |
| B. | POST |
| C. | Both A & B |
| D. | None of the above |
| Answer» C. Both A & B | |
| 60. |
Which object is created by the web container at time of deploying the project? |
| A. | ServletConfig |
| B. | ServletContext |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. ServletContext | |
| 61. |
What is the lifecycle of a servlet? |
| A. | Servlet class is loaded |
| B. | Servlet instance is created |
| C. | init,Service,destroy method is invoked |
| D. | All mentioned above |
| Answer» D. All mentioned above | |
| 62. |
Which method in session tracking is used in a bit of information that is sent by a web server to a browser and which can later be read back from that browser? |
| A. | HttpSession |
| B. | URL rewriting |
| C. | Cookies |
| D. | Hidden form fields |
| Answer» C. Cookies | |
| 63. |
Which are the examples of Application Server? |
| A. | Apache |
| B. | Tomcat |
| C. | JBoss |
| D. | Weblogic |
| Answer» C. JBoss | |
| 64. |
How many techniques are used in Session Tracking? |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 5 |
| Answer» A. 4 | |
| 65. |
In HTTP Request method Get request is secured because data is exposed in URL bar |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» B. False | |
| 66. |
In the following statements identify the disadvantages of CGI? |
| A. | If number of clients increases, it takes more time for sending response |
| B. | For each request, it starts a process and Web server is limited to start processes |
| C. | It uses platform dependent language e.g. C, C++, perl |
| D. | All mentioned above |
| Answer» D. All mentioned above | |
| 67. |
Servlet technology is used to create web application |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 68. |
Which method is used to specify before any lines that uses the PintWriter? |
| A. | setPageType() |
| B. | setContextType() |
| C. | setContentType() |
| D. | setResponseType() |
| Answer» C. setContentType() | |
| 69. |
What are functions of Servlet container? |
| A. | Lifecycle management |
| B. | Communication Support |
| C. | Multithreading Support |
| D. | All of the above |
| Answer» D. All of the above | |
| 70. |
Which object of HttpSession can be used to view and manipulate information about a session? |
| A. | session identifier |
| B. | creation time |
| C. | last accessed time |
| D. | All mentioned above |
| Answer» D. All mentioned above | |
| 71. |
Which methods are used to bind the objects on HttpSession instance and get the objects? |
| A. | setAttribute |
| B. | getAttribute |
| C. | Both A & B |
| D. | None of the above |
| Answer» C. Both A & B | |
| 72. |
Which method take a string not a URL? |
| A. | sendRedirect |
| B. | forward |
| C. | Both |
| D. | None |
| Answer» A. sendRedirect | |
| 73. |
Which of the following are interface?
|
| A. | 1,2,3,4 |
| B. | 1,2 |
| C. | 1,2,3 |
| D. | 1,4 |
| Answer» B. 1,2 | |
| 74. |
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 | |
| 75. |
Which of the following code is used to get an attribute in a HTTP Session object in servlets? |
| A. | session.getAttribute(String name) |
| B. | session.alterAttribute(String name) |
| C. | session.updateAttribute(String name) |
| D. | session.setAttribute(String name) |
| Answer» A. session.getAttribute(String name) | |
| 76. |
What is the difference between servlets and applets? i. Servlets execute on Server; Applets execute on browser ii. Servlets have no GUI; Applet has GUI iii. Servlets creates static web pages; Applets creates dynamic web pages iv. Servlets can handle only a single request; Applet can handle multiple requests |
| A. | i, ii, iii are correct |
| B. | i, ii are correct |
| C. | i, iii are correct |
| D. | i, ii, iii, iv are correct |
| Answer» B. i, ii are correct | |
| 77. |
Which are the session tracking techniques? i. URL rewriting ii. Using session object iii.Using response object iv. Using hidden fields v. Using cookies vi. Using servlet object |
| A. | i, ii, iii, vi |
| B. | i, ii, iv, v |
| C. | i, vi, iii, v |
| D. | i, ii, iii, v |
| Answer» B. i, ii, iv, v | |
| 78. |
A deployment descriptor describes |
| A. | Web component response settings |
| B. | Web component setting |
| C. | Web component request objects |
| D. | All of the above |
| Answer» B. Web component setting | |
| 79. |
The values of <servlet-name> and <servlet-class> in web.xml file |
| A. | must be same |
| B. | must not be same |
| C. | may be same |
| D. | None of the above |
| Answer» C. may be same | |
| 80. |
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 | |
| 81. |
Which technology do we mix our business logic with the presentation logic? |
| A. | Servlet |
| B. | JSP |
| C. | Both A and B |
| D. | None of the above |
| Answer» A. Servlet | |
| 82. |
Which attribute specifies a JSP page that should process any exceptions thrown but not caught in the current page? |
| A. | The ErrorPage Attribute |
| B. | The IsErrorPage Attribute |
| C. | Both A & B |
| D. | None of the above |
| Answer» A. The ErrorPage Attribute | |
| 83. |
The ASP and JSP technologies are quite similar in the way they support the creation of Dynamic pages, using HTML templates, scripting code and components for business logic. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 84. |
Which of the following is an advantage of the statement – Separation of business logic from JSP ? |
| A. | Custom Tags in JSP |
| B. | JSP Standard Tag Library |
| C. | All the above |
| D. | None of the above |
| Answer» A. Custom Tags in JSP | |
| 85. |
JSPs eventually are compiled into Java servlets, you can do as much with JSPs as you can do with Java servlets. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 86. |
JavaServer Pages often serve the same purpose as programs implemented using the Common Gateway Interface (CGI) |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 87. |
Which is the Microsoft solution for providing dynamic Web content? |
| A. | ASP |
| B. | JSP |
| C. | Both A and B |
| D. | None of the above |
| Answer» A. ASP | |
| 88. |
Which tag is used to execute java source code in JSP? |
| A. | Declaration Tag |
| B. | Scriptlet tag |
| C. | Expression tag |
| D. | None of the above |
| Answer» B. Scriptlet tag | |
| 89. |
A JSP page consists of which tags? |
| A. | HTML tags |
| B. | JSP tags |
| C. | Both A & B |
| D. | None of the above |
| Answer» C. Both A & B | |
| 90. |
Which packages does a JSP API consist of? |
| A. | javax.servlet.jsp |
| B. | java.servlet |
| C. | javax.servlet.jsp.tagext |
| D. | Both A & C |
| Answer» D. Both A & C | |
| 91. |
Which of the scripting of JSP not putting content into service method of the converted servlet? |
| A. | Declarations |
| B. | Scriptlets |
| C. | Expressions |
| D. | None of the above |
| Answer» C. Expressions | |
| 92. |
The difference between Servlets and JSP is the ……………. |
| A. | translation |
| B. | compilation |
| C. | syntax |
| D. | Both A and B |
| Answer» C. syntax | |
| 93. |
Which of the following are the valid scopes in JSP? |
| A. | request, page, session, application |
| B. | request, page, session, global |
| C. | response, page, session, application |
| D. | request, page, context, application |
| Answer» A. request, page, session, application | |
| 94. |
JSP includes a mechanism for defining …………………………. or custom tags. |
| A. | static attributes |
| B. | local attributes |
| C. | dynamic attributes |
| D. | global attributes |
| Answer» C. dynamic attributes | |
| 95. |
Why DB connections are not written directly in JSPs? |
| A. | Response is slow |
| B. | Not a standard J2EE architecture |
| C. | Load Balancing is not possible |
| D. | Both B and C |
| Answer» D. Both B and C | |
| 96. |
Which is not a directive? |
| A. | include |
| B. | page |
| C. | export |
| D. | taglib |
| Answer» C. export | |
| 97. |
Which http method send by browser that asks the server to get the page only? |
| A. | get |
| B. | option |
| C. | put |
| D. | post |
| Answer» A. get | |
| 98. |
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» B. Using <%jsp:param> tag | |
| 99. |
_jspService() method of HttpJspPage class should not be overridden. |
| A. | True |
| B. | False |
| C. | none |
| D. | all |
| Answer» A. True | |
| 100. |
Which is not a directive? |
| A. | include |
| B. | page |
| C. | export |
| D. | useBean |
| Answer» C. export | |
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