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Ciena Interview Questions and Answers

Updated 19 Mar 2025

Ciena Interview Experiences

Popular Designations

39 interviews found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Mar 2023. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. BGP basic and advanced scenarios
  • Q2. BGP loop avoiding mechanism , Concep t of RR, BGP messages and flow , BGP path selection, L3VPN , LDP , Troubleshooting BGP issues with multiple diagrams and scenarios, BGP table map and route filtering , ...
  • Q3. OSPF areas , Conceptual OSPF questions,

Senior Test Engineer Interview Questions asked at other Companies

Q1. From Selenium -> Which Automation framework I have implemented in my project . Explain each framework components. How to handle dynamic web element. how to handle hidden element. how to upload file in selenium, where hashmap is used in s... read more
View answer (1)

Interview Questions & Answers

user image Anonymous

posted on 27 Apr 2024

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed before Apr 2023. There were 3 interview rounds.

Round 1 - Coding Test 

Online portal test specific to your selected language, 2 programs

Round 2 - Technical 

(1 Question)

  • Q1. Python data structure questions, some automation framework questions
Round 3 - HR 

(1 Question)

  • Q1. Why did you choose ciena? Why did you decided to leave your old org?

I applied via Company Website and was interviewed before Nov 2021. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. How will you do end to end automation
  • Ans. 

    End to end automation will be achieved through a systematic approach involving analysis, design, implementation, testing, and deployment.

    • Identify the processes that can be automated

    • Design a solution that integrates with existing systems

    • Implement the automation using appropriate tools and technologies

    • Test the automation thoroughly to ensure it meets requirements

    • Deploy the automation and monitor its performance

    • Continuous

  • Answered by AI
  • Q2. How will you inform the business if something is not automatable
  • Ans. 

    I will communicate the limitations of automation and suggest alternative solutions.

    • Identify the specific task or process that cannot be automated

    • Analyze the reasons why it cannot be automated

    • Provide alternative solutions or workarounds

    • Communicate the limitations and alternatives to the business stakeholders

  • Answered by AI
Round 2 - One-on-one 

(3 Questions)

  • Q1. Director came and said you are hired
  • Q2. Asked about the technologies on which I worked upon
  • Q3. Basic understanding about my previous role

Interview Preparation Tips

Topics to prepare for Ciena Senior Analyst interview:
  • Nothing
Interview preparation tips for other job seekers - Don't join this company as they believe in Hire & Fire.

Worst is Indian Management

Skills evaluated in this interview

Senior Analyst Interview Questions asked at other Companies

Q1. Explain 3 statement financial model Calculating discount rate Could you walk me through the DCF model? Other valuation methods. What PE is ideal? What is the other matrix to value the company? Difference between IRR and CAGR. What is Bond Y... read more
View answer (1)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview before Apr 2023.

Round 1 - Technical 

(1 Question)

  • Q1. DSA , C , telecom
Round 2 - Technical 

(1 Question)

  • Q1. DSA , C telecom

Embedded Software Engineer Interview Questions asked at other Companies

Q1. 3. 1)Do you know about Autosar. 2)define function definition and function declaration. 3)difference between structure and union. 4) define Enumeration 5)what is microcontroller and microprocessor and its applications 6)where we uses in real... read more
View answer (1)

Ciena interview questions for popular designations

 Software Engineer

 (5)

 Embedded Software Engineer

 (3)

 C Developer

 (2)

 Module Lead

 (2)

 Embedded Software Developer

 (2)

 Senior Test Engineer

 (2)

 Technical Lead

 (1)

 Software Developer

 (1)

Interview Questions & Answers

user image Anonymous

posted on 3 Sep 2023

Interview experience
4
Good
Difficulty level
Easy
Process Duration
More than 8 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Sep 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 - HR 

(1 Question)

  • Q1. Need baesd depending on availability of the resources in the market
Round 3 - Behavioral 

(1 Question)

  • Q1. Introduction and expectation setting
Round 4 - Behavioral 

(1 Question)

  • Q1. Discussion with manager -- just a formality as the background check was on .
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Jul 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 

Python coding. Classes . Regex.

Round 3 - Technical 

(4 Questions)

  • Q1. Networking . End to end packet flow working.
  • Q2. L2 and L3 header related questions.
  • Q3. RIP, OSPF related questions
  • Q4. Fragmentation related questions and header details

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (217)

Cloud Analyst Interview Questions & Answers

user image Anonymous

posted on 20 Apr 2022

I applied via Naukri.com and was interviewed in Jul 2021. 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 - Technical 

(1 Question)

  • Q1. Question about current role and knowledge based on what technology are mentioned in the resume, like AWS(cloud platform) and the services. Knowledge of CI\D, programming skills in any language (python)
Round 3 - One-on-one 

(1 Question)

  • Q1. Some architectural design questions, in-depth questions about your contribution towards the projects that you have worked in.
Round 4 - One-on-one 

(1 Question)

  • Q1. Management rookne, to check team fittment, communication, attitude towards work

Interview Preparation Tips

Interview preparation tips for other job seekers - Use good keywords on resume, keep it short and crisp and don’t lie on resume.
Brush up on networking concepts in cloud.

Cloud Analyst Interview Questions asked at other Companies

Q1. How to replicate an encrypted EBS backed store from one region to another region which should be unencrypted in AWS
View answer (1)
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview before Nov 2022.

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 

DSA Program based on Array, Linklist, Tree

Round 3 - Technical 

(1 Question)

  • Q1. C/C++ and DS question
Round 4 - Technical 

(1 Question)

  • Q1. C/C++ and DS Questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare mostly C and DS

Embedded Software Engineer Interview Questions asked at other Companies

Q1. 3. 1)Do you know about Autosar. 2)define function definition and function declaration. 3)difference between structure and union. 4) define Enumeration 5)what is microcontroller and microprocessor and its applications 6)where we uses in real... read more
View answer (1)

Interview Questionnaire 

6 Questions

  • Q1. 1. sort a stack without auxillary space
  • Ans. 

    Sort a stack without auxiliary space

    • Use recursion to pop elements from stack and insert them in sorted order

    • Compare the top element with the next element and swap if necessary

    • Repeat until stack is sorted

  • Answered by AI
  • Q2. 2. design and write production code of thread pool
  • Ans. 

    A thread pool is a group of threads that can be reused to execute multiple tasks concurrently.

    • Define a task interface that encapsulates the work to be done

    • Create a queue to hold tasks

    • Create a fixed number of threads in the pool

    • Each thread should loop indefinitely, taking tasks from the queue and executing them

    • Use synchronization primitives to ensure thread safety

    • Consider using a thread-safe data structure for the task ...

  • Answered by AI
  • Q3. 3. singleton implementation thread safe
  • Q4. Shared and unique ptr implementation
  • Ans. 

    Shared and unique pointer implementation in C++

    • Shared pointers allow multiple pointers to refer to the same object, automatically deleting the object when the last pointer is destroyed.

    • Unique pointers allow only one pointer to refer to an object, automatically deleting the object when the pointer is destroyed.

    • Shared pointers use reference counting to keep track of the number of pointers referring to an object.

    • Unique po...

  • Answered by AI
  • Q5. Given the frequency of three letters 'a' 'b' and 'c'..form the largest string by using a,b, and c provided 3 (a , b or c )cant be together and the possible string should be largest.
  • Ans. 

    Form the largest string using a, b, and c with the condition that 3 (a, b, or c) can't be together.

    • Start with the most frequent letter and alternate with the other two.

    • If there are two letters with the same frequency, start with the one that has the least number of adjacent letters.

    • Example: 'abcabcab' is not valid, but 'abacbac' is valid and larger.

  • Answered by AI
  • Q6. Ex1 ) dict = {'abab' , 'aba', 'xyz', 'xyx'} pattern {'aba'} output {'aba' , 'xyx'} , ex 2) dict = {'abb' , 'abc' , 'xyz', 'xyy'} paatern {'mno'} output {abc , xyz} ...
  • Ans. 

    Code to find strings in a dictionary matching a given pattern

    • Iterate through the dictionary and check if each string matches the pattern

    • Add the matching strings to an output array

    • Return the output array

  • Answered by AI

Skills evaluated in this interview

Lead Engineer Interview Questions asked at other Companies

Q1. What is the resistance value of tripping & closing coil of vcb?
View answer (8)

Module Lead Interview Questions & Answers

user image Anonymous

posted on 24 Oct 2021

I applied via Naukri.com and was interviewed before Oct 2020. There were 4 interview rounds.

Interview Questionnaire 

5 Questions

  • Q1. Given a list of numbers in an array ,traverse the array in a way so as to jump the number of times the value at that particular index example : a[i]=2 then jump to a[i+2] index , on reaching the last index...
  • Ans. 

    Traverse an array by jumping the number of times the value at that index

    • Create a loop to traverse the array

    • Use modulo operator to handle circular array

    • Jump to the index based on the value at current index

    • Repeat until all elements are visited

  • Answered by AI
  • Q2. Program like create queue using 2 stacks ,linked list, array list implementation , find string within string
  • Q3. Synchronisation producer consumer problems in java , java 8 concepts like lambdas , predicate ,consumer ,anymatch etc
  • Q4. Pass by value and refrence, design related things
  • Q5. And lastly the manager asked riddle, mine was burning the rope from 2 end and telling when its 15 min

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well as all rounds will be technical and you have to fully complete the problems, best of luck.

Skills evaluated in this interview

Module Lead Interview Questions asked at other Companies

Q1. 1) describe the Cloud architecture for the azure storage, blob , cloud services? 2) describe the integration of Web API related questions for email and sms applications? 3) describe the .net core aspects for solid programming implementation... read more
View answer (2)

Ciena Interview FAQs

How many rounds are there in Ciena interview?
Ciena interview process usually has 2-3 rounds. The most common rounds in the Ciena interview process are Technical, Resume Shortlist and HR.
How to prepare for Ciena interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Ciena. The most common topics and skills that interviewers at Ciena expect are Python, Networking, Linux, Java and Software Development.
What are the top questions asked in Ciena interview?

Some of the top questions asked at the Ciena interview -

  1. Given a list of numbers in an array ,traverse the array in a way so as to jump ...read more
  2. ex1 ) dict = {'abab' , 'aba', 'xyz', 'xyx'} pattern {'aba'} output {'aba' , 'xy...read more
  3. 1.what is bgp confederation?what are bgp state machines?what is NSSA in ospf?ho...read more
How long is the Ciena interview process?

The duration of Ciena interview process can vary, but typically it takes about less than 2 weeks to complete.

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Ciena Interview Process

based on 27 interviews

Interview experience

4.1
  
Good
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Ciena Reviews and Ratings

based on 367 reviews

4.2/5

Rating in categories

3.9

Skill development

4.2

Work-life balance

4.2

Salary

3.8

Job security

4.3

Company culture

3.6

Promotions

3.9

Work satisfaction

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