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

Interview Questions and Answers for 'Servicenow' - 11 question(s) found - Order By Newest

Q1. Explain OOPs

or

Explain OOPs Principles

or

Explain OOPs Concepts

or

Explain OOPs features

or

Tell me something about OOPs

Core Java

Ans. OOPs or Object Oriented Programming is a Programming model which is organized around Objects instead of processes. Instead of a process calling series of processes, this model stresses on communication between objects. Objects that all self sustained, provide security by encapsulating it's members and providing abstracted interfaces over the functions it performs. OOP's facilitate the following features

1. Inheritance for Code Reuse
2. Abstraction for modularity, maintenance and agility
3. Encapsulation for security and protection
4. Polymorphism for flexibility and interfacing

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_{Like Discuss Correct / Improve oops oops features Asked in 260 Companies basic frequent}

Q2. Explain various Searching and Sorting Algorithms ?

Algorithm

^{This question was recently asked at 'HeadStrong,ServiceNow'.This question is still unanswered. Can you please provide an answer.}

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Usually asked only to fresh graduates and less experienced developers.

Q3. What is a daemon thread? Give an Example ?

Ans. These are threads that normally run at a low priority and provide a basic service to a program or programs when activity on a machine is reduced. garbage collector thread is daemon thread.

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Frequently asked in face to face interviews.

Q4. Write a program to print fibonacci series.

Core Java

Ans. int count = 15;
int[] fibonacci = new int[count];
fibonacci[0] = 0;
fibonacci[1] = 1;
for(int x=2; x < count; x++){
fibonacci[x] = fibonacci[x-1] + fibonacci[x-2];
}

for(int x=0; x< count; x++){
System.out.print(fibonacci[x] + " ");
}

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Q5. Write any sorting algorithm.

Algorithm

Ans. https://javasearch.buggybread.com/InterviewQuestions/questionSearch.php?searchOption=label'

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Q6. Explain different sorting algorithms and Big O of each

Algorithm

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Q7. Explain In place sorting algorithm ?

Algorithm

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Q8. What is an identity matrix ?

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Q9. How does one do matrix multiplication?

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Q10. What are the disadvantages of binary search trees?

Algorithm

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Q11. Design a appointment booking system for a chain of hospitals.

Design

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