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Interview Questions and Answers for 'Internet' - 12 question(s) found - Order By Newest

Recently asked in TCS , Tech Mahindra, HCL , Accenture and Fidelity.
  Q1. Explain Flow of Spring MVC ?Spring
Admin
info@buggybread.com
Ans. The DispatcherServlet configured in web.xml file receives the request.

The DispatcherServlet finds the appropriate Controller with the help of HandlerMapping and then invokes associated Controller.

Then the Controller executes the logic business logic and then returns ModeAndView object to the DispatcherServlet.

The DispatcherServlet determines the view from the ModelAndView object.

Then the DispatcherServlet passes the model object to the View.

The View is rendered and the Dispatcher Servlet sends the output to the Servlet container.

Finally Servlet Container sends the result back to the user.

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   Like         Discuss         Correct / Improve     j2ee   spring   mvc   frameworks   web applications   architecture     Asked in 10 Companies      Basic        frequent


  Q2. What is a String Pool ?Core Java
Anonymous
Ans. String pool (String intern pool) is a special storage area in Java heap. When a string is created and if the string already exists in the pool, the reference of the existing string will be returned, instead of creating a new object and returning its reference.

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   Like         Discuss         Correct / Improve     java   oops   string   string class   string pool   heap memory     Asked in 31 Companies      intermediate        frequent

Try 2 Question(s) Test


Very Frequently asked. Have been asked in HCL Technologies very frequently ( based on 3 feedback ). Among first few questions in many interviews.
  Q3. Differences between abstract class and interface ?Core Java
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info@buggybread.com
Ans. Abstract classes can have both abstract methods ( method declarations ) as well as concrete methods ( inherited to the derived classes ) whereas Interfaces can only have abstract methods ( method declarations ).

A class can extend single abstract class whereas it can implement multiple interfaces.

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   Like         Discuss         Correct / Improve     java   classes   abstract class   interfaces     Asked in 65 Companies      basic        frequent


 Q4. What is URL?
Java EE
Anonymous
Ans. URL is Uniform Resource Locator which is representation of HTTP address.

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   Like         Discuss         Correct / Improve     j2ee   http   internet   url      basic        rare


 Q5. What is HTTP ?Java EE
Anonymous
Ans. HTTP or Hypertext Transfer Protocol is internet protocol for tranmission of hypertext ( text with meta data ) over internet.

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   Like         Discuss         Correct / Improve     j2ee   http   internet  fidelity     Asked in 2 Companies      basic        frequent


 Q6. What is meant by an "asynchronous event." Give some examples ?Operating System
Anonymous
Ans. An asynchronous event is one that occurs at an unpredictable time outside the control of the program that the CPU is running. It is not "synchronized" with the program.

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   Like         Discuss         Correct / Improve     j2ee   internet   web application   asynchronus   asynchronus communication   architecture     Asked in 1 Companies


 Q7. what is content negotiation?
Anonymous
Ans. Suppose we want to visit a site for any information, information can be represented in different languages like English,German or may be other and their format for presentation can also differ from HTML to PDF or may be Plain text. In this case when an client makes an HTTP request to a server, client can also specify the media types here. Client can specify what it can accept back from host and on the basis of availability the host will return to the client. This is called content negotiation because client and server negotiated on the language and format of the content to be shared.

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   Like         Discuss         Correct / Improve     j2ee   internet   content negotiation   http   architecture


 Q8. What is the difference between URI, URL and URN ?Java EE2016-10-12 13:18:54

Ans. URI stands for Uniform Resource Indicator
URL stands for Uniform Resource Locator
URN stands for Uniform Resource Name

URI = URL + URN

For ex - http://javasearch.buggybread.com/InterviewQuestions/questionSearch.php?keyword=url

This is URI. The string from start till .php is URL whereas keyword=url is URN.

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   Like         Discuss         Correct / Improve     url  urn  uri  web address  internet address     Asked in 1 Companies


 Q9. In this url

http://javasearch.buggybread.com/InterviewQuestions/questionSearch.php?searchOption=label&keyword=url

What is protocol , domain , path and query param ?
Java EE2016-10-12 13:21:28

Ans. the web URI starts with the protocol which is http in this case, javasearch.buggybread.com is the domain in this case which is a subdomain of buggybread.com, /InterviewQuestions is the path, questionSearch.php is the resource, searchOption and keyword are query params.

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   Like         Discuss         Correct / Improve     url  internet address


 Q10. What is the character limit of url and doesn it apply to GET and POST Requests ?Java EE2016-10-12 13:25:09

Ans. Its 2048 and Yes it applies to get request but not POST. As in Get Request , elements are passed as part of the url, this limit applies to Get requests.

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   Like         Discuss         Correct / Improve     url  internet address


 Q11. Write a program to print two digit numbers that fulfil following criteria

Summing their digits and then multiplying with 3 should result in the number

For ex - 27 , (2+7) * 3 = 27


Core Java2017-01-28 11:20:28

Ans. public class BuggyBread {
   public static void main(String args[]) {
      for(int x=10;x<100;x++){
         int tensDigit = x/10;
         int unitDigit = x%10;
         
         if((tensDigit+unitDigit)*3 == x){
            System.out.println(x);
         }
      }
   }
}

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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q12. Can we ssh into subnet without a internet gateway ?Amazon Web Services (AWS)2019-01-30 14:39:55

Ans. No

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   Like         Discuss         Correct / Improve     aws subset  aws internet gateway




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