Đề Thi FE PRJ302 - SP26 - B5 - FE

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SP2026

Thời Gian

29/4/26

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FE

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PRJ302 SP26 B5 FE 10H50

Dưới đây là toàn bộ 50 câu hỏi trắc nghiệm từ tệp tin bạn cung cấp, được sắp xếp theo thứ tự tăng dần:



Câu 1: What is inside a HTTP response? Multiple Choice A A result code and Header fields B A request code and response code C Body and ACK flag D Body and Header fields E Both A and D is true F All of above






Câu 2: How does the GET method handle sensitive data compared to the POST method? Multiple Choice A GET encrypts data, ensuring secure transmission B POST is more suitable for secure data transfer C GET exposes sensitive data in the URL D GET can handle larger data volumes than POST






Câu 3: What happens to request attributes when sendRedirect() is used? request.setAttribute("data", "value"); response.sendRedirect("result.jsp"); Multiple Choice A Attributes are retained B Attributes are lost C They are automatically sent to the next page D They are converted to session attributes






Câu 4: How can you create a drop-down list in an HTML form? Multiple Choice A Using the element B Using the element C Using the element D Using the element






Câu 5: In a standard Java web application, where is the deployment descriptor (web.xml) typically located? Multiple Choice A WEB-INF B /META-INF C /WEB-INF/classes D Root directory






Câu 6: What is the primary function of a Servlet container in a Java web application? Multiple Choice A Handling static resources like HTML and CSS B Executing server-side Java code (Servlets) C Managing database connections D Running JavaScript code on the client-side






Câu 7: Where is the deployment descriptor located? Multiple Choice A The deployment descriptor is located in the WEB-INF directory of the web application B The deployment descriptor is located in the WEB-INFS directory of the web application C The deployment descriptor is located in the WEBS-INF directory of the web application D The deployment descriptor is located in the WEBS directory of the web application






Câu 8: Which of the following is NOT typically configured in the web.xml file of a Java web application? Multiple Choice A Servlet and URL mapping B Initialization parameters C Database table schema D Filter configuration






Câu 9: What method is called in HttpServlet when using a href link to pass parameters to servlet? Multiple Choice A doPost(HttpServletRequest request, HttpServletResponse response) B doPut(HttpServletRequest request, HttpServletResponse response) C doGet(HttpServletRequest request, HttpServletResponse response) D doDelete(HttpServletRequest request, HttpServletResponse response)




Câu 10: Examine this servlet code: @WebServlet("/showParams") public class ShowParams Servlet extends HttpServlet { } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) } throws ServletException, IOException { ServletContext ctx = getServletContext(); PrintWriter out = response.getWriter(); Enumeration paramNames = ctx.getInitParameterNames(); while(paramNames.hasMoreElements()) { } String name paramNames.nextElement(); out.println(name + ":" + ctx.getInitParameter(name)); If web.xml has the following entries: settingOne foo setting Two bar What will the servlet output? Multiple Choice A foo bar B settingOne: foo setting Two: bar C setting Two: bar settingOne: foo D settingOne setting Two






Câu 11: What is the function of the

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tag in JSP? Multiple Choice A Sends a permanent redirect to the browser B Includes another JSP page's content during request processing C Transfers request control to another resource on the server D Returns the response to the calling servlet






Câu 12: Which servlet method retrieves a servlet's initialization parameter defined in the web.xml? Multiple Choice A getServletConfig().getInitParameter("paramName") B getServletContext().getInitParameter("paramName") C getInitParameter("paramName") D getConfig().getParameter("paramName")






Câu 13: What is the purpose of request attributes in servlet collaboration? Multiple Choice A To store data that can be shared across multiple servlets within the same request B To store data that can be shared only within the same servlet C To store data that can be shared across multiple servlets in the same session D To store data that can be accessed by any servlet in the application






Câu 14: What is the purpose of the element in the servlet mapping configuration? Multiple Choice A To define the servlet's class name B To specify the context path of the web application C To set the URL address that maps to a servlet D To configure filter mappings




Câu 15: Consider the code written on a JSP page that has the following content. <%@ taglib uri="

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" prefix ="c" %> <c:set var ="x" value ="10" /> <c:set var ="y" value ="5" /> ${x+y} What is the incorrect output produced by the JSP page above? Multiple Choice A 15 B 10+5 C 510 D 105






Câu 16: For generating an HTML page in JSP, which content type must be set using the page directive? Multiple Choice A text/xml B text/plain C text/html D application/json






Câu 17: Which tag is used to declare a variable or method in JSP? Multiple Choice A B C D <%! %>






Câu 18: Which implicit object in JSP provides access to the servlet context and can be used to store and retrieve application-wide information? Multiple Choice A pageContext B request C application D session






Câu 19: Through which implicit object can you access parameters passed to the JSP page? Multiple Choice A params B request C input D getParameters






Câu 20: Which of the following statements about JSTL is not valid? Multiple Choice A JSTL improves readability over scriptlets B JSTL completely replaces servlets for business logic C JSTL requires importing core and optional tag libraries D JSTL provides tags for iteration, conditionals, and internationalization






Câu 21: If you forget to close the JDBC connection (Connection), what can happen? Multiple Choice A Data can be lost B The application will automatically release the connection C The number of connections to the database can be exhausted (Connection Leak) D Nothing happens






Câu 22: When to use PreparedStatement instead of Statement? Multiple Choice A When there is a static SQL query that does not change B When executing the same query multiple times with different parameters C When a stored procedure needs to be called D When the query has no parameters






Câu 23: How do you manage database transaction with JDBC driver? Multiple Choice A Explicit transaction management by invoke con.beginTrans() B Turn off auto commit mode from DBSM for implicit transaction C It is automatically managed by DBMS D Invoke con.commit() or con, rollback()






Câu 24: Which component of the MVC architecture is responsible for presenting data to the user in a web application? Multiple Choice A Model B View C Controller D Service




Câu 25: Given the code below: HttpSession session = request.getSession(); session.setAttribute("username", "HuyNM"); Which of the following is incorrect? Multiple Choice A The session must exist or be created automatically B The attribute "username" can be retrieved later using the same session C The attribute will persist across multiple HTTP requests D The attribute is stored in the client browser's local storage






Câu 26: Which is NOT considered a standard component of a typical MVC architecture in web applications? Multiple Choice A Database B Model C View D Controller






Câu 27: In a multi-tier data model, which layer is responsible for handling application logic? Multiple Choice A User Interface App Layer B Application Logic Layer C Data Layer D Connection Layer






Câu 28: To get the value of an attribute saved in the session, which method do we use? Multiple Choice A session.getParameter(String name) B session.getValue(String name)) C session.getAttribute(String name) D session.fetchAttribute(String name)






Câu 29: What happens if you call request.getSession(false); when no session exists? Multiple Choice A A new session is created B Returns null C IllegalStateException is thrown D The old session is reset






Câu 30: In the doGet method, how to create a Cookie and send it to the client? Multiple Choice A Cookie newCookie = new Cookie("username", "john_doe"); response.addCookie(newCookie); B response.setCookie("username", "john_doe"); C request.createCookie("username", "john_doe"); response.sendCookie(); D Cookie.create("username", "john_doe"); response.writeCookie();






Câu 31: How to store a value in ServletContext from a Servlet? Multiple Choice A context.setAttribute("key", value); B request.setAttribute("key", value); C session.setAttribute("key", value); D response.setAttribute("key", value);




Câu 32: Assuming that the client sends a request to open the index.jsp page, arrange the following steps correctly to describe the processing inside server. 1: the LoggingFilter intercepts the request to display current date. 2: the server compiles and processes the JSP file to generates an HTML response. 3: The final HTML content from index.jsp is sent back to the client's browser. 4: the request continues to index.jsp. 5: the HTML response from index.jsp is sent back to the LoggingFilter. Multiple Choice A 1-4-2-5-3 B 1-5-4-2-3 C 1-2-5-3 D 1-4-5-3






Câu 33: Given a Java class Employee with a field named tel, consider the following Expression Language (EL) code, where emp is an instance of the Employee class: $(emp.tel) Which of the following statements accurately describes the requirements for accessing and displaying the tel field using this EL expression? Multiple Choice A The tel field must be declared as public, and no getter method is required B The tel field may be private, but a getTel() method must be provided C Both A and B are correct D Neither A nor B is correct






Câu 34: When accessing $(sessionScope.cart.items[0] , what happens? Multiple Choice A Retrieve the first element of the items array in the cart object from the session B EL will return null if the cart does not exist in the session C Error because EL does not support array retrieval D Both A and B are correct






Câu 35: How would you use EL to access a property named title from a Map object within a List named bookList at index 2? Multiple Choice A $(bookList[12].title} B $(bookList.get(2).title) C $ bookList["2"].title} D $ bookList.title[2]) E $(bookList[2].title)






Câu 36: Which interface must be implemented to create a custom listener for session-related events in Java web development? Multiple Choice A HttpSessionListener B ServletRequestListener C ServletContextListener D ServletResponseListener






Câu 37: In Java web development, what is the primary role of a ServletContextListener? Multiple Choice A Handling HTTP requests and generating responses B Managing sessions and cookies for clients C Observing changes in the lifecycle of the ServletContext D Interacting with databases to perform CRUD operations






Câu 38: What does a session listener do in a web application? Multiple Choice A It listens to and records conversations B It watches for changes in user sessions, like when someone logs in or out C It changes session data D It helps users navigate through the application






Câu 39: What is the purpose of a Session Listener in a Java web application? Multiple Choice A To listen for changes in session attributes B To listen for changes in application context parameters C To listen for changes in request parameters D To listen for changes in session lifecycle events




Câu 40: Given this JSTL code, what is the correct output of ${myUrl}? <c:url value="/app/item" var="myUrl" scope="page"> <caram name="type" value="book" /> <caram name ="id" value ="123" /> </c:url> ${myUrl} Multiple Choice A /app/item?type=book&id =123 B /app/item?type=id&book =123 C /app/item D Nothing will be printed out E The JSP failed to compile






Câu 41: What is the purpose of the <c:catch> tag in JSTL? Multiple Choice A It catches exceptions thrown during the execution of its body content B It handles errors thrown by JSP expressions C It catches HTTP errors and redirects to an error page D It encapsulates code to be executed asynchronously






Câu 42: Which JSTL tag is used to format dates and times according to the user's locale? Multiple Choice A B

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C

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D

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Câu 43: What's the point of using in a JSP? Multiple Choice A To pick the main language for the website B To tell other tags which language and country format to use C To change the user's language settings D To choose the language for database information






Câu 44: Which interface needs to be implemented to create a custom tag handler class? Multiple Choice A javax.servlet.Servlet B javax.servlet.filter Filter C javax.servlet.jsp.tagext.Tag D javax.servlet.http.HttpServlet






Câu 45: Which attribute of the

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element is used to specify the Java class that implements a Simple Tag Handler? Multiple Choice A tagclass B class C handler D implementation






Câu 46: What is the role of the setBodyContent() method in the Body Tag interface? Multiple Choice A It sets the body content of the custom tag B It returns the body content as a string C It initializes the BodyContent object for the tag D It releases any resources associated with the body content






Câu 47: In the context of web filters, what does "pre-processing" of a request mean? Multiple Choice A Changing the response sent to the client B Handling the request before it reaches the servlet or resource C Altering the client's browser settings D Encrypting the request data






Câu 48: Filter can be defined in which file? Multiple Choice A web.xml B In Java @WebFilter annotation C Both A and B D No need to define, just implement in Servlet






Câu 49: When is the destroy() method of a servlet filter called? Multiple Choice A At the end of the filter's lifecycle B Before each doFilter() method call C After the web application is undeployed D Immediately after the filter's first invocation






Câu 50: In a Java web application, when two filters match an incoming request-one via a URL pattern and the other via a Servlet name-which filter takes precedence in the processing chain? Multiple Choice A The filter matching the request via a URL pattern B The filter matching the request via a servlet name C The filter declared first in the deployment descriptor D The filter processed in alphabetical order based on its name