About Tech Zenon
Tech Zenon Interview Questions and Answers
Updated 21 Feb 2026DevOps Engineer Interview Experience
Candidate: Emily Davis
Experience Level: Senior
Applied Via: Company career fair
Difficulty: Hard
Final Result:
Interview Process
4
Questions Asked
- Explain CI/CD pipelines.
- How do you monitor system performance?
- Describe a time you automated a complex process.
- What tools do you use for container orchestration?
Advice
Gain hands-on experience with cloud platforms and automation tools.
Full Experience
The interview started with a phone screen, followed by a technical test and two rounds of in-depth technical interviews. The questions were challenging and focused on practical experience with infrastructure and automation. Feedback highlighted the need for deeper expertise in Kubernetes.
UX Designer Interview Experience
Candidate: David Kim
Experience Level: Mid-level
Applied Via: Recruiter outreach
Difficulty:
Final Result:
Interview Process
3
Questions Asked
- Walk me through your portfolio.
- How do you incorporate user feedback into designs?
- Describe a challenging design problem you solved.
Advice
Prepare a strong portfolio and be ready to discuss design decisions clearly.
Full Experience
The process included an initial screening call, a design challenge to complete at home, and a final interview with the design team. Feedback was constructive, and the team valued creativity and user-centered thinking.
Product Manager Interview Experience
Candidate: Catherine Smith
Experience Level: Entry-level
Applied Via: LinkedIn job post
Difficulty:
Final Result:
Interview Process
2
Questions Asked
- How do you prioritize features?
- Describe a time you managed a project under tight deadlines.
- What tools do you use for product management?
Advice
Focus on communication skills and understanding of product lifecycle.
Full Experience
The first round was a phone interview focusing on background and motivation. The second round was a video interview with the hiring manager and team members, emphasizing situational questions and teamwork. The interviewers were supportive and encouraging.
Data Scientist Interview Experience
Candidate: Brian Lee
Experience Level: Senior
Applied Via: Referral from a current employee
Difficulty: Hard
Final Result:
Interview Process
4
Questions Asked
- Describe a machine learning project you led.
- How do you handle missing data?
- Explain the bias-variance tradeoff.
- Write SQL queries to extract data from multiple tables.
Advice
Prepare for deep technical questions and case studies related to data analysis and machine learning.
Full Experience
The interview process was rigorous, including a take-home assignment that required building a predictive model. The onsite rounds included technical interviews and a presentation of the assignment. Despite strong technical skills, the fit with the team culture was a concern.
Software Engineer Interview Experience
Candidate: Alice Johnson
Experience Level: Mid-level
Applied Via: Online application via company website
Difficulty:
Final Result:
Interview Process
3
Questions Asked
- Explain the difference between REST and SOAP.
- Write a function to reverse a linked list.
- How do you handle merge conflicts in Git?
Advice
Brush up on data structures and algorithms, and be ready to discuss previous projects in detail.
Full Experience
The process started with an online coding test, followed by a technical phone interview focusing on problem-solving and coding skills. The final round was an in-person interview with the team, including system design questions and behavioral assessment. The interviewers were friendly and provided clear feedback.
Frequently Asked Questions in Tech Zenon
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Common Interview Questions in Tech Zenon
Q: A hare and a tortoise have a race along a circle of 100 yards diameter. The tortoise goes in one directionand the hare in the other. The hare starts after the tortoise has covered 1/5 of its distance and that too leisurely.The hare and tortoise meet when the hare has covered only 1/8 of the distance. By what factor should the hareincrease its speed so as to tie the race?
Q: A rich merchant had collected many gold coins. He did not want anybody to know about them. One day his wife asked, "How many gold coins do we have?" After pausing a moment, he replied, "Well! If I divide the coins into two unequal numbers, then 32 times the difference between the two numbers equals the difference between the squares of the two numbers."The wife looked puzzled. Can you help the merchant's wife by finding out how many gold coins they have?
Q: 9 cards are there. You have to arrange them in a 3*3 matrix. Cards are of 4 colors. They are red, yellow, blue and green. Conditions for arrangement: one red card must be in first row or second row. 2 green cards should be in 3rd column. Yellow cards must be in the 3 corners only. Two blue cards must be in the 2nd row. At least one green card in each row.
Q: A rich man died. In his will, he has divided his gold coins among his 5 sons, 5 daughters and a manager. According to his will: First give one coin to manager. 1/5th of the remaining to the elder son.Now give one coin to the manager and 1/5th of the remaining to second son and so on..... After giving coins to 5th son, divided the remaining coins among five daughters equally.All should get full coins. Find the minimum number of coins he has?
Q: There are two balls touching each other circumferencically. The radius of the big ball is 4 times the diameter of the small all. The outer small ball rotates in anticlockwise direction circumferencically over the bigger one at the rate of 16 rev/sec. The bigger wheel also rotates anticlockwise at N rev/sec. What is 'N' for the horizontal line from the centre of small wheel always is horizontal.
Q: There are 3 clans in an island - The Arcs who never lie, the Dons who always lie and the Slons who lie alternately with the truth. Once a tourist meets 2 guides who stress that the other is a Slon. They proceed on a tour and see a sports meet. The first guide says that the prizes have been won in the order Don, Arc, Slon. The other says that, the order is Slon, Don, Arc. (the order need not be exact). To which clan did each of the guides and the players belong? ...
Q: T, U, V are 3 friends digging groups in fields. If T & U can complete i groove in 4 days &, U & V can complete 1 groove in 3 days & V & T can complete in 2 days. Find how many days each takes to complete 1 groove individually.
Q: ABCDE are sisters. Each of them gives 4 gifts and each receives 4 gifts No two sisters give the same combination ( e.g. if A gives 4 gifts to B then no other sisters can give four to other one.)Â (i) B gives four to A.(ii) C gives 3 to E. How much did A,B,C,E give to D?
Q: At 6?o a clock ticks 6 times.The time between first and last ticks is 30 seconds.How long does it tick at 12?o clock?2.A hotel has 10 storey. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth.
Q: The egg vendor calls on his first customer and sells half his eggs and half an egg. To the second customer, he sells half of what he had left and half an egg and to the third customer he sells half of what he had then left and half an egg. By the way he did not break any eggs. In the end three eggs were remaining . How many total eggs he was having ?
Q: Tom has three boxes with fruits in his barn: one box with apples, one box with pears, and one box with both apples and pears. The boxes have labels that describe the contents, but none of these labels is on the right box. How can Tom, by taking only one p
Q: There are 7 letters A,B,C,D,E,F,GAll are assigned some numbers from 1,2 to 7.B is in the middle if arranged as per the numbers.A is greater than G same as F is less than C.G comes earlier than E.Which is the fourth letter
Q: In a Park, N persons stand on the circumference of a circle at distinct points. Each possible pair of persons, not standing next to each other, sings a two-minute song ? one pair immediately after the other. If the total time taken for singing is 28 minutes, what is N?
Q: Give two dice - one is a standard dice, the other is blank (nothing painted on any of the faces). The problem is to paint the blank dice in such a manner so that when you roll both of them together, the sum of both the faces should lie between 1 and 12. Numbers from 1-12 (both inclusive) equally likely.
Q: Given a collection of points P in the plane , a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P)....
Q: An escalator is descending at constant speed. A walks down and takes 50 steps to reach the bottom. B runs down and takes 90 steps in the same time as A takes 10 steps. How many steps are visible when the escalator is not operating.Â
Q: There are some chickens in a poultry. They are fed with corn. One sack of corn will come for 9 days. The farmer decides to sell some chickens and wanted to hold 12 chicken with him. He cuts the feed by 10% and sack of corn comes for 30...
Q: Motorboat A leaves shore P as B leaves Q; they move across the lake at a constant speed. They meet first time 600 yards from P. Each returns from the opposite shore without halting, and they meet 200 yards from. How long is the lake?
Q: The profit made by a company in one year is enough to give 6% return on all shares. But as the preferred shares get on return of 7.5%, so the ordinary shares got on return of 5%. If the value of preferred shares is Rs 4,000000, then what is the va...
Q: On a particular day A and B decide that they would either speak the truth or will lie. C asks A whether he is speaking truth or lying? He answers and B listens to what he said. C then asks B what A has said B says "A says that he is a liar"