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Interview Questions and Answers for 'Facebook' - 6 question(s) found - Order By Newest

 Q1. What is an IP address ?Java EE2016-10-18 14:14:38

Ans. An Internet Protocol address is a numerical label assigned to each device participating in a computer network.

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   Like         Discuss         Correct / Improve     ip address     Asked in 2 Companies      basic        frequent


 Q2. Given a sorted array, write a program to check if two elements sum up to third. Core Java2017-01-28 11:14:21

 This question was recently asked at 'Facebook'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q3. Given a String with some Code, Write a Parser to have proper indentation.Core Java2018-02-08 13:16:48

 This question was recently asked at 'Facebook'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


  Q4. Find Intersection/union between two arrays.Core Java2018-05-13 19:40:34

 This question was recently asked at 'Bristlecone,Amazon Lab126,Amazon,Microsoft,Facebook,NCR,Google'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     arrays  code  coding     Asked in 7 Companies        frequent


 Q5. Pascal Triangle Program2019-01-08 15:54:25

Ans. package snippet;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class Pascal {
   public static void main(String[] args) {

      System.out.println(generatePascalTriangle(5));

   }

   static Map> generatePascalTriangle(int size) {
      Map> triangle = new HashMap<>();

      triangle.put(0, Arrays.asList(1));
      triangle.put(1, Arrays.asList(1, 1));

      for (int i = 2; i <= size; i ) {
         List coeffListForI = new ArrayList<>();
         List coeffListForI_1 = triangle.get(i - 1);
         coeffListForI.add(1);
         for (int j = 0; j <= coeffListForI_1.size() - 2; j ) {
            coeffListForI.add(coeffListForI_1.get(j) coeffListForI_1.get(j 1));
         }
         coeffListForI.add(1);
         triangle.put(i, coeffListForI);
      }

      return triangle;
   }
}

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   Like         Discuss         Correct / Improve          Asked in 8 Companies


 Q6. Have you ever heard about csrf attacks ?Security2020-01-15 14:26:11

Ans. Yes, Cross-Site Request Forgery (CSRF) is an attack that forces an end user to execute unwanted actions on a web application in which they're currently authenticated.

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   Like         Discuss         Correct / Improve     csrf attack  Cross-Site Request Forgery (CSRF)     Asked in 15 Companies



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