JAVA MCQ QUESTIONS AND ANSWERS PART -2
1. Attribute of an object can include information about? |
|---|
| 1. state |
| 2. method |
| 3. Behavior |
| 4. procedures |
| Answer: 1 |
2. Which method of the thread class should be defined? |
|---|
| 1. run() |
| 2. start() |
| 3. Both[A]and[B] |
| 4. None of this above |
| Answer: 1 |
3. How constructor can be used for a servlet? |
|---|
| 1. Initialization |
| 2. Constructor function |
| 3. Initialization and Constructor function |
| 4. Setup() method |
| Answer: 3 |
4. Which of the following code is used to get an attribute in a HTTP Session object in servlets? |
|---|
| 1. session.getAttribute(String name) |
| 2. session.alterAttribute(String name) |
| 3. session.updateAttribute(String name) |
| 4. session.setAttribute(String name) |
| Answer: 1 |
5. Which method is used to get three-letter abbreviation for locale’s country in servlets? |
|---|
| 1. Request.getISO3Country() |
| 2. Locale.getISO3Country() |
| 3. Response.getISO3Country() |
| 4. Local.retrieveISO3Country() |
| Answer: 1 |
6. Which of the following code retrieves the body of the request as binary data? |
|---|
| 1. DataInputStream data = new InputStream() |
| 2. DataInputStream data = response.getInputStream() |
| 3. DataInputStream data = request.getInputStream() |
| 4. DataInputStream data = request.fetchInputStream() |
| Answer: 3 |
7. When destroy() method of a filter is called? |
|---|
| 1. The destroy() method is called only once at the end of the life cycle of a filter |
| 2. The destroy() method is called after the filter has executed doFilter method |
| 3. The destroy() method is called only once at the begining of the life cycle of a filter |
| 4. The destroyer() method is called after the filter has executed |
| Answer: 1 |
8. Which of these collection class has the ability to grow dynamically? |
|---|
| 1. Array |
| 2. Arrays |
| 3. ArrayList |
| 4. None of These |
| Answer: 3 |
9. How is the dynamic interception of requests and responses to transform the information done? |
|---|
| 1. servlet container |
| 2. servlet config |
| 3. servlet context |
| 4. servlet filter |
| Answer: 4 |
10. What are the different types of session tracking mechanism supported by Servlets? |
|---|
| 1. URL tracking |
| 2. cookies |
| 3. Hidden Form fields |
| 4. all of the above |
| Answer: 4 |
11. Which method is used to specify before any lines that uses the PintWriter? |
|---|
| 1. setPageType() |
| 2. setContextType() |
| 3. setContentType() |
| 4. None of the above |
| Answer: 2 |
12. Which of the following code retrieves the MIME type of the body of the request? |
|---|
| 1. new MimeType() |
| 2. request.getContentType() |
| 3. response.getContentType() |
| 4. None |
| Answer: 2 |
13. The life cycle of a servlet is managed by |
|---|
| 1. servlet context |
| 2. servlet container |
| 3. the supporting protocol (such as http or https) |
| 4. doPost |
| Answer: 2 |
14. Which method shows the client what server is receiving? |
|---|
| 1. goGet |
| 2. doOption |
| 3. doTrace |
| 4. 1,4 |
| Answer: 1 |
15. Which of the following are class? 1.ServletContext 2.Servlet 3.GenericServlet 4.HttpServlet |
|---|
| 1. 1,2,3,4 |
| 2. 1,2 |
| 3. 3,4 |
| 4. session.addCookiecookie |
| Answer: 3 |
16. Which of the following code can be used to write a cookie? |
|---|
| 1. request.addCookiecookie |
| 2. response.addCookiecookie |
| 3. Header.addCookiecoo kie |
| 4. None |
| Answer: 2 |
17. Which of these method can be used to increase the capacity of ArrayList object manually? |
|---|
| 1. Capacity() |
| 2. increaseCapacity() |
| 3. increasecapacity() |
| 4. ensureCapacity() |
| Answer: 4 |
18. Which of these method of DatagramPacket is used to obtain the byte array of data contained in a datagram? |
|---|
| 1. getData() |
| 2. getBytes() |
| 3. getArray() |
| 4. recieveBytes() |
| Answer: 1 |
19. Which of these data member of HttpResponse class is used to store the response from a http server? |
|---|
| 1. status |
| 2. address |
| 3. statusResponse |
| 4. statusCode |
| Answer: 4 |
20. What does setAutoCommit(false) do? |
|---|
| 1. commits transaction after each query |
| 2. explicitly commits transaction |
| 3.does not commit transaction automatically after each query |
| 4. never commits transaction |
| Answer: 3 |
21. Which of the following is used to call stored procedure? |
|---|
| 1. Statement |
| 2. PreparedStatement |
| 3. CallableStatment |
| 4. CalledStatement |
| Answer: 3 |
22. Which of the following is used to limit the number of rows returned? |
|---|
| 1. setMaxRows(int i) |
| 2. setMinRows(int i) |
| 3. getMaxrows(int i) |
| 4. getMinRows(int i) |
| Answer: 1 |
23. Which class provides system independent server side implementation? |
|---|
| 1. Socket |
| 2. ServerSocket |
| 3. Server |
| 4. ServerReader |
| Answer: 2 |
24. Which of these is a return type of getAddress method of DatagramPacket class? |
|---|
| 1. DatagramPacket |
| 2. DatagramSocket |
| 3. InetAddress |
| 4. ServerSocket |
| Answer: 3 |
25. Which of these is wrapper around everything associated with a reply from an http server? |
|---|
| 1. HTTP |
| 2. HttpResponse |
| 3. Httpserver |
| 4. httpserver |
| Answer: 1 |
26. Suspend thread can be revived by using_______ |
|---|
| 1. start() method |
| 2. Suspend() method |
| 3. resume() method |
| 4. yield() method |
| Answer: 3 |
27. Choose the CORRECT statement. |
|---|
| 1. To write JSP code you require a browser. |
| 2. To test the JSPs you need a server engine. |
| 3. JSPs looks like HTML script |
| 4. JSP combines HTML and JDK tools |
| Answer: 3 |
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