Interview Questions and Answers for 'L' | Search Interview Question

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Q601. what kind of filters did you worked with ?

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Q602. how are filters added to expressions?

Angular JS

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Q603. what does restrict mean when we talk about directive ?

Angular JS

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Q604. What is two way binding ?

Angular JS

Ans. Two-way binding means that any data-related changes affecting the model are immediately propagated to the matching view(s), and that any changes made in the view(s) (say, by the user) are immediately reflected in the underlying model. When app data changes, so does the UI, and conversely.

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Q605. What is Angular JS ?

Angular JS

Ans. It is javascript framework which is written in javascript.It is best for single page application.It extends the html with new attributes which makes it more useful for ui dveloper.

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Q606. what is parallel array sorting?

Algorithm

Ans. Java provides a new additional feature in Array class which is used to sort array elements in parallel.New methods have been added to the java.util.Arrays package that use the JSR 166 Fork/Join parallelism common pool to provide sorting of arrays in parallel.

The methods are called parallelSort() and are overloaded for all the primitive data types and Comparable objects.

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Q607. Sort a List of Objects using comparable and comparator

Core Java

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Q608. What can we do if we need to retrieve Fibonacci value at a particular index faster ? Can we use Linked List ?

Data Structure

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Q609. Which data structure would you use to implement LRU cache and Why ? Can you tell me the time complexity for it ?

Algorithm

Ans. We can use LinkedHashMap as it will give time complexity of O(1) for lookup and We can maintain the insertion order to identify the Last used elements for eviction.

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Q610. What is the difference between time and space complexity ?

Algorithm

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Q611. How can you identify Performance issues before going to production ?

General

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Q612. What are the challenges you faced in any of your project ?

General

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Q613. Difference between Left and Inner Join ?

SQL

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Q614. Given a sorted array, write an algorithm to create a binary tree.

Algorithm

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Q615. Write a method that returns maximum depth of a tree ?

Algorithm

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Q616. Write a program to sort a stack in ascending order You should not make any assumptions about how the stack is implemented The following are the only functions that should be used to write this program: push | pop | peek | isEmpty

Algorithm

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Q617. How would you design a stack which, in addition to push and pop, also has a function min which returns the minimum element? Push, pop and min should all operate in O(1) time

Algorithm

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Q618. Describe how you could use a single array to implement three stacks

Algorithm

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Q619. Design an algorithm and write code to remove the duplicate characters in a string without using any additional buffer.

Algorithm

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Q620. What is the runtime complexity of appending strings to string object and Why ?

Algorithm

Ans. O(n^2) because each time a string is appended a new String is created and it runs through all the letters to copy them over.

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Q621. What is the access time for ArrayList and LinkedList ?

Data Structure

Ans. O(1) for ArrayList
O(n) for LinkedList

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Q622. Write code to see if a Linked List has cycle in it ?

or

Write code using Floyd Algorithm to see if a linked list has cycle in it ? What is it's comlexity ?

Algorithm

Ans. public class LinkedList {

Node start = null;
Node head = null;

class Node {
Integer body;
Node nextNode;

Node(Integer value) {
body = value;
}
}

public static void main(String[] args) {
LinkedList ll = new LinkedList();

ll.addNodeToEnd(5);
ll.addNodeToEnd(10);
ll.addNodeToEnd(15);

ll.traverse();

if(checkIfLoop(l1)){
System.out.println("There is a Loop");
} else {
System.out.println("No Loop");
}
}

private boolean checkifLoop(Test l1) {
Node slow = start;
Node fast = start;
Node faster = start;

while(slow != null ) {
fast = slow.nextNode;
faster = fast.nextNode;
if(slow == fast || slow == faster) {
return true;
}
slow = slow.nextNode;
}

return false;
}

}

Complexity of this algorithm is O(n)

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Q623. How long will it take for you to join Canopy ?

General

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Q624. Have you worked with JSF ?

General

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Q625. Explain your experience working on UI ?

General

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Q626. Why you chose programming as your career ?

General

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Q627. What methodology and technology stack do you use ?

General

Ans. [Open Ended Answer]

Possible Answer - We are using Agile. We have daily standups, Bi weekly Backlog Grooming , Planning and Retrospective, We have a 2 week sprint and We use Jira for Scrum Management. We are using Java 8, Spring Boot, JSF , Apache Kafka , Soap as well as Rest Services.

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Q628. Have you ever faced challenged with your current work ?

General

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Q629. Do you have any problems with your team that you plan on changing ?

General

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Q630. Are you involved in getting business requirements ?

General

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