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Ciena SDE (Software Development Engineer) Interview Questions and Answers

Updated 29 Oct 2022

Ciena SDE (Software Development Engineer) Interview Experiences

1 interview found

I applied via Campus Placement and was interviewed in Sep 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

1 hour test of moderate to difficult level questions

Round 3 - One-on-one 

(2 Questions)

  • Q1. They asked about projects i made during my academic years and asked som questions from DSA
  • Q2. Any advise you want to give our company?

Interview Preparation Tips

Topics to prepare for Ciena SDE (Software Development Engineer) interview:
  • Data Structures
  • Software Development
Interview preparation tips for other job seekers - Study and make your base strong on the DSA topics and be ready to give some answers regarding your own opinions.

Interview questions from similar companies

I applied via Campus Placement and was interviewed in Sep 2021. There were 5 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Mostly based on resume

Interview Preparation Tips

Interview preparation tips for other job seekers - There were 3 rounds
Consisting of Technical HR and Managerial
It was conducted in a smooth manner questions were asked from resume mostly and some puzzles

I applied via Company Website and was interviewed in Jun 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

90 Mins on amcat global platform, 2 Easy level questions on Array and two pointers

Round 3 - Technical 

(2 Questions)

  • Q1. Print all the Elements not present in a sorted array and tell the time and space complexity of the algorithm.
  • Ans. 

    Print all elements not present in a sorted array with time and space complexity.

    • Iterate through array and print missing elements

    • Use binary search for faster search

    • Time complexity: O(n log n)

    • Space complexity: O(1)

  • Answered by AI
  • Q2. Print all the elements not present in an unsorted array and tell the time and space complexity of the algorithm.
  • Ans. 

    Print all elements not present in an unsorted array and give time and space complexity.

    • Iterate through array and use a hashset to keep track of seen elements.

    • Print elements not in hashset.

    • Time complexity: O(n), Space complexity: O(n)

  • Answered by AI
Round 4 - HR 

(2 Questions)

  • Q1. Tell me about yourself, your college , family, hobbies and projects
  • Q2. Why do you want to join this company?

Interview Preparation Tips

Topics to prepare for Jio SDE (Software Development Engineer) interview:
  • Arrays
  • Linked List
  • Two pointers
Interview preparation tips for other job seekers - It will be an easy experience, so chill out, practice 2 pointers, arrays and linked lists questions on LeetCode.

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Aug 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

Test is proctored and 3 questions were asked out of which 1 is from language other is from data structures and the last one is from sql

Round 3 - Technical 

(2 Questions)

  • Q1. What is a database and explain it
  • Ans. 

    A database is a collection of organized data that can be easily accessed, managed, and updated.

    • A database stores data in tables with rows and columns

    • It allows for efficient data retrieval and manipulation

    • Examples include MySQL, Oracle, and MongoDB

  • Answered by AI
  • Q2. What are the projects you have done

Interview Preparation Tips

Interview preparation tips for other job seekers - Be calm and be confident
Be prepared about the projects and internships you have done thoroughly

I applied via Recruitment Consulltant and was interviewed in Oct 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(3 Questions)

  • Q1. Basic Concept of OOPs, Java, Spring Boot, MySQL.
  • Q2. Find the kth smallest value in an unsorted array
  • Ans. 

    Find the kth smallest value in an unsorted array

    • Sort the array and return the kth element

    • Use quickselect algorithm to find the kth smallest element in O(n) time

    • Build a min heap of size k and traverse the array to find the kth smallest element

  • Answered by AI
  • Q3. Merge Sort Algorithm Implementation
  • Ans. 

    Merge Sort is a divide and conquer algorithm that divides an array into two halves, sorts them and then merges them.

    • Divide the array into two halves recursively

    • Sort each half recursively using merge sort

    • Merge the two sorted halves

    • Time complexity is O(nlogn)

    • Space complexity is O(n)

  • Answered by AI
Round 3 - Technical 

(5 Questions)

  • Q1. Detailed discussion on the project I have worked on.
  • Q2. What is a Load Balancer?
  • Ans. 

    A Load Balancer distributes incoming network traffic across multiple servers to improve performance and availability.

    • It helps to avoid overloading a single server

    • It improves responsiveness and availability of applications

    • It can be hardware or software-based

    • Examples include Amazon ELB, F5 BIG-IP, and NGINX

    • It can also perform health checks on servers and route traffic accordingly

  • Answered by AI
  • Q3. Difference between Spring MVC and Spring Boot
  • Ans. 

    Spring MVC is a framework for building web applications, while Spring Boot is an opinionated framework for building standalone applications.

    • Spring MVC requires more configuration and setup compared to Spring Boot

    • Spring Boot provides a pre-configured environment with sensible defaults

    • Spring Boot includes an embedded server, making it easier to deploy standalone applications

    • Spring MVC is more suitable for building tradit...

  • Answered by AI
  • Q4. Difference between SQL and NoSQL
  • Ans. 

    SQL is a relational database management system while NoSQL is a non-relational database management system.

    • SQL databases are structured and use tables with predefined schema while NoSQL databases are unstructured and use collections or documents.

    • SQL databases use SQL (Structured Query Language) for querying and managing data while NoSQL databases use various query languages like MongoDB's query language.

    • SQL databases ar...

  • Answered by AI
  • Q5. Find the equilibrium index where the sum of all the values before the equilibrium index is equal to the sum of all the values after the equilibrium index.
  • Ans. 

    Find the equilibrium index where the sum of all values before it is equal to the sum of all values after it.

    • Iterate through the array and calculate the total sum.

    • Then iterate again and keep track of the left sum and right sum.

    • If they are equal at any index, return that index as the equilibrium index.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare DSA Concepts well, Spring and java concepts, and projects you have mentioned in the resume.

Skills evaluated in this interview

I applied via Campus Placement and was interviewed in Jul 2022. There were 3 interview rounds.

Round 1 - Coding Test 

Very Very easy coding questions with a lot of time. Basic DSA knowledge could have cracked it easily. The only problem that too not for me but for some my friends was their own test portal which was quite buggy.

Round 2 - Technical 

(2 Questions)

  • Q1. Given a sorted array arr, integer start and end. Find all the elements that are in the range of start and end and are missing in the array.
  • Ans. 

    Find missing elements in a sorted array within a given range.

    • Loop through the array and check if each element is within the given range.

    • If an element is outside the range, add all the missing elements within the range to a list.

    • Return the list of missing elements.

  • Answered by AI
  • Q2. What projects have you done?
Round 3 - HR 

(2 Questions)

  • Q1. Introduce yourself including your family background, education background, technical skills, interest and hobbies.
  • Q2. What do you know about Jio?

Interview Preparation Tips

Topics to prepare for Jio SDE (Software Development Engineer) interview:
  • Data Structures
  • Algorithms
  • DBMS
  • OS
Interview preparation tips for other job seekers - Trust me, it's very easy to get in Jio and by very easy I mean damn easy.

Skills evaluated in this interview

Interview Questionnaire 

4 Questions

  • Q1. Write a C code for printing Febonacci Series upto n elements
  • Ans. 

    C code for printing Fibonacci Series upto n elements

    • Declare three variables to store the current, previous and next numbers in the series

    • Initialize the previous and current variables to 0 and 1 respectively

    • Use a loop to print the next number in the series by adding the previous two numbers

    • Loop should run n times to print n elements in the series

  • Answered by AI
  • Q2. Question related to family background
  • Q3. What are your hobbies?
  • Q4. What are your strengths and weaknesses?

Interview Preparation Tips

Round: Test
Experience: Questions were from easy to moderate level. No negative marking, so attempt all.
Tips: Keep your mind open and practice aptitude problems on a daily basis.

Round: Group Discussion
Experience: There were 21 students selected out of which two teams of 10 and 11 students were formed. Both the groups were given a topic and each one of us had to express our views.
Tips: Don't get nervous, just speak whatever you think. Don't yell or speak at loudly, just keep calm and put your points forward.
Duration: 20 minutes

Round: Technical Interview
Experience: Apart from the above questions some puzzles and DBMS questions and a few basic C questions were also asked. We were given enough time to think and answer.
Tips: Do not be in a hurry. Think properly what you are going to say, whether it is right or not and then only answer.

Round: HR Interview
Experience: The HR round was a good one. He tried to test my thinking capabilities and reasoning capabilities
Tips: Answer every question honestly.

General Tips: All the four rounds were elimination rounds and the final result was announced based on cumulative performance. So, be patient and give your best.
Skill Tips: Try to answer every properly
Skills: IQ, Basic Coding Skills, Problem Solving Skills
College Name: NIT ALLAHABAD
Motivation: The company visited our college campus. Also, one of my relatives in in Ericsson at a very high  post and is quite happy working here.

Skills evaluated in this interview

I appeared for an interview in Mar 2017.

Interview Questionnaire 

8 Questions

  • Q1. Basics of networking
  • Q2. Data structures
  • Q3. Sql
  • Q4. Introduction
  • Q5. Final year project
  • Q6. Why should I hire you?
  • Ans. 

    I have the technical skills, experience, and passion to deliver high-quality software solutions.

    • I have a strong background in programming languages such as Java, Python, and C++.

    • I have experience working on complex software projects and collaborating with cross-functional teams.

    • I am passionate about staying up-to-date with the latest technologies and trends in software development.

    • I am a quick learner and have a strong...

  • Answered by AI
  • Q7. Why Ericsson?
  • Ans. 

    Ericsson is a global leader in telecommunications technology with a strong focus on innovation and career development.

    • Global leader in telecommunications technology

    • Strong focus on innovation

    • Opportunities for career development

  • Answered by AI
  • Q8. About relocation

Interview Preparation Tips

Round: Test
Experience: The test which I wrote was based on cocubes. quants was easy, one can easily score 50 percent if they refer rs agarwal and logical was easy but it takes more time and verbal was neither easy nor tough. One thing I want to advice try doing verbal first so that u can save time and then go to quant and logical. After the test we got the results out of 160 students 51 cleared the test. I was one among them.
Duration: 45 minutes
Total Questions: 45

Round: Technical Interview
Experience: Keep ur cool in the technical. people are friendly. Think before you answer twice they may ask u puzzles as well. So be prepared for it. Final year project is a must, they are gonna ask u the details how you implement stuffs in your project. After my technical out of 51 students around 30 cleared this round. I was one among them.

Round: HR Interview
Experience: Don't be scared guys. Hr is just a casual one. finally around 15 were selected from my college including me. I am very happy with the result. best of luck guys. Do well!!!
Tips: Keep your cool. stay confident that's all I can tell. Once you clear technical one can easily clear Hr round.

Skills: Communication, Technical Skill
College Name: JSS Academy of Technical Education - JSSATE

I appeared for an interview in Feb 2017.

Interview Preparation Tips

Round: Test
Experience: It was a simple aptitude test in which around 150 students cleared the test.
Duration: 1 hour
Total Questions: 40

Round: Test
Experience: Three programs were given and we had to write the code in either java ,c or c++ and get the required output.Around 90 students cleared this round.
Duration: 1 hour 30 minutes
Total Questions: 3

College Name: VIT Vellore

I appeared for an interview before May 2016.

Interview Preparation Tips

Round: Test
Experience: The test was conducted through Cocubes. It was moderately difficult. Some of the questions are time taking. We need to be decisive in attempting such questions.
Tips: Need to manage time properly. Should assess and choose which questions to attempt and which ones to leave.
Duration: 1 hour
Total Questions: 30

Round: Test
Experience: The three questions are of three different levels.

1. You will be given two numbers. The first one is the starting point and the second one is the ending point of a range of integers. You have to count the number of integers in that range which are divisible by the first number.

Ex : INPUT : 3 18
OUTPUT : 6

2. You will be given a number. You have to find the sum of the digits. If the sum exceeds 9, you have to add the digits of the sum recursively until you a get a single digit sum.

EX : INPUT : 9999
OUTPUT : 9

Explanation: 9999 => 9 +9+9+9=36 => 3+6 =9

3. You will be given an array of characters which include ( L, R , or a number in the range '0' to '9'). A ball is kept on a line of integers initially kept at zero. The ball has to execute the instructions sequentially as follows:
(i) If an 'L' character is encountered, the ;position of the ball has to be decremented.
(ii) If an 'R' character is encountered, the position of the ball has to be incremented.
(iii) If an integer (in the range '0' to '9) is encountered , we have to go to that index in the array and execute the instruction present in that index.

Finally, after all the instructions are executed, you have to print the final position of the ball.

EX : INPUT :
Number of instruction : 5
Instructions: LR1R2

OUTPUT : 3

Explanation :
(i) Initially, the ball is at 0. Since the 0th index in the array is 'L' , the ball moves to 0-1= -1 position.
(ii) The 1st index is 'R' hence, the position of the ball is -1 +1 = 0 position.
(iii) The 2nd index is '1', hence we have to go to index 1 in the array which is 'R', hence the new position is 0+1 =1.
(iv) The 3rd index is 'R', hence the new position is 1 +1 =2.
(v) The 4th index is '2' , hence we have to go to 2nd index is '1' , hence we have to go again to 1st index , which is 'R' hence the final position is 2+1 =3.

Tips: We need to solve all the three the problems to have better chances of clearing this round.
Duration: 1 hour
Total Questions: 3

Round: Technical Interview
Experience: The interview was focussed majorly on coding. It went for about 45min with around 10 coding problems given to solve. Some basics of Computer networking are also tested in this round.
Tips: Be prepared with some basics of networking. As the company's main focus is on Telecom, good knowledge in telecom and networking would be a big advantage.

Round: Technical Interview
Experience: This round was focused on the aptitude and reasoning skills. Some puzzles were given in this round. These puzzles are of moderately complex and are more common ones in interviews. Like the (find the heavier ball among three balls using a balance in min no. of attempts).
Tips: Sometimes the interviewer tries to confuse. You need to be confident with your answers and explaination.

Round: HR Interview
Experience: The interview was more of a traditional HR round. Majorly concentrated on the final year project, personal strengths and weaknesses.

Skills: Coding Skills, Computer Networking, C Language Basics
College Name: G Pulla Reddy College of Engineering & Technology

Ciena Interview FAQs

How many rounds are there in Ciena SDE (Software Development Engineer) interview?
Ciena interview process usually has 3 rounds. The most common rounds in the Ciena interview process are Resume Shortlist, Coding Test and One-on-one Round.

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