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ION Interview Experience

Last updated on Jan. 23, 2021, 7:01 p.m. by None

1. Tell me about yourself...

2. (Not a question) He explained me about the interview process

3. Suppose my friend Sam has to travelfor 1hr (just 'to' not 'fro') to board a train everyday to his office, so in the evening, his wife comes to the station and picks him up and drives him home. (This journey for wife is for 2 hours ofc). If one day Sam reaches earlier and decides to walk towards home. After 5 mins he meets his wife and then they go home together from that point so how many minutes did the wife travel?

4. I have a 4*4*4 cube all made of silver. I plate it gold from all sides. Then I cut it so that I get 64 equal sized cubes. So... how many of these smaller cubes have 3 gold faces, 2 gold faces, 1 gold faces, and no gold faces?

5. I have 50 bikes with full petrol tanks and all can travel 100 km individually. I can have anyone drive the bike from any point till another. If I cannot come back to the starting point and I'm only allowed to go forward, What maximum distance can I cover using these bikes?

6. I travel daily from my home to a lake. (Assume n km distance) at 4:05 am I see I have covered n/5 distance from my home. At 4:15, I have covered n/3 distance. when will I reach the lake? how much time will I require for the total journey?

7. Suggest me the best DS for the following case: I have large amount of retrievals and updates but very low insertions.

8. What's  the best suitable data structure for Priority scheduling algorithm? (I answered priority queue)

9. So what is the time complexity of push/pop in priority queue (based on priority push or priority pop)?

10. This time complexity is very high. What other data structure would you suggest? (I answered heap)

11. Why heap?

12. How does heap gives us advantage over other array based data structures?

13. How does heapify work and why heap is best suited for priority scheduling? 14) Do you have any questions for me?

  Round 2:

1. (Not a question) A whole big case study was provided and I was asked questions based on it. Questions comprised of several background which would help them decide my direction of thinking. 2) If you want to implement an App for realizing the business presented in case study, Can you draw it's ER diagram?

2. Based on ER diagram can you explain me a Use-case?

3. What database would you use for implementing this application. (I said Firestore and explained it's advantages)

4. Why firestore? A developer can login and delete the whole data and there's no privileged/leveled access to it. Again what other database? (They interviewer directed me towards oracleDB and had me explained it's advantages)

5. When amazon launches phones like one plus T at 1:00 pm, 1M phones are ordered within 10 minutes. Within this 10 minutes, 1M * n requests are made to server so how to handle crashes and DoS? (Distributed server in star topology with one meta server to digitally initialize horizontally scaled servers)

6. How will you digitally initialize? (Server script and/or system software)

7. How would you build that software/what logic will you use to initialize the ready servers? (rate of change in rate of requests per time, ML, etc)

8. (He then explained how in-house databases require these worked out systems, cloud doesn't require it) Then how cloud handles these changes? (I said I don't know)

9. (He then explained cloud has mechanism that allows it to initialize servers based on amount of CPU and RAM utilized, next question was unrelated to the flow) What tech stacks do you work on? 11) Do you have any questions?

1. Introduce yourself

2. Why do I like Automation and AI?

3. What are some popular examples where AI powered Automation? (I answered chat-bots, intelligent cameras but he also expected IIT-bombay degree ceremony)

4. What did you do in your X internship? How many people were there in my team? Tell me about the product. How did you manage time, etc. (And few more questions based on Internship)

5. (He showed me a picture of how Monalisa was being painted using two methods. One ws drawn alike scan-copy and other was utilizing updates at all stages starting with a blue-print which looked like monalisa) Which one is a better approach here and why?

6. Why second one?

7. Why not first one?

8. What is the upper hand in second approach?

9. Does the second one map to some methodology in SDLC? Which one if yes? Explain the main characteristics of that methodology.

10. (He showed me another picture where a tree swing was supposed to be built and each stake holder in the SDLC process had a different understanding of the swing) Why does this problem of different understanding happens?

11. How can we tackle this condition? (I explained rigorous questioning and requirements gathering from customer, formation of SRS)

12. If SRS does everything, does it adapt to changes in the requirements by customer at real time? (I said no) Then SRS appears to be helpful but only for documentation right so how to tackle this situation? (I said maybe the first cycle of development isn't that useful, we can develop an initial prototype and show it to customer, based on his feedback, we can go for updates)

13. (Not a question) (He said yes that's how we do it. These cycles are important since feedback of previous cycle is best way to determine requirements for next release of product)

14. Do you have any questions

2. What does your name mean?

3. As you mentioned earlier, how did you cope up with your weaknesses?

4. Why do you think you are best fit to work at ION/ Why should we hire you?

5. Do you have any questions? (I asked how does ION see towards the newly launched tech stack, since new stack for development comes every month)

**Due to privacy reasons these questions are not as it is, but very similar.

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EPAM Defends Interests of Tele2 in Case Against Moscow Metro

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Egorov Puginsky Afanasiev & Partners has successfully defended the interests of T2 Mobile (Tele2) – a nation-wide mobile operator in Russia – in what the firm describes as "a precedent-setting case against the Moscow Metro regarding unfair tariffs for placing telecommunications equipment in the metro."

EPAM was able to convince the competition authority of the Metro’s dominant position as sole owner of unique infrastructure, and "of the unfounded and discriminatory nature of the one-off payment applied to Tele2 for placing communications equipment at each station."

As a result, the firm reports, "the Moscow Office of the Federal Antimonopoly Service issued a warning requesting that the Moscow Metro rescind the discriminatory tariffs for Tele2 and offer [it] the same conditions for placing telecommunications equipment as those enjoyed by other telecom operators. This will have a positive effect on competition in the sector. The warning is an important step in allowing a fourth telecom provider to become fully operational in the metro and will ensure that Tele2 customers can make the most of its telecommunication services."

The EPAM team consisted of Partner Anna Numerova, Counsel Denis Gavrilov, and Associate Alexander Balyberdin.

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Simulation of the sulfide phase formation in a KhN60VT alloy

• Simulation of Metallurgical and Thermal Processes
• Published: 23 September 2017
• Volume 2017 , pages 447–453, ( 2017 )

Cite this article

• I. V. Kabanov 1 ,
• E. V. Butskii 1 ,
• K. V. Grigorovich 2 &
• A. M. Arsenkin 2  

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The conditions of the existence of sulfide phases in Fe–Ni–S alloys and four-component Fe–50 wt % Ni–0.001 wt % S– R ( R is an alloying or impurity element from the TCFE7 database) systems are studied using the Thermo-Calc software package and the TCFE7 database. The modification of nickel superalloys by calcium or magnesium is shown to increase their ductility due to partial desulfurization, the suppression of the formation of harmful sulfide phases, and the uniform formation of strong sulfides in the entire temperature range of metal solidification. The manufacturability of superalloys can decrease at a too high calcium or magnesium content because of the formation of intermetallics with a low melting temperature along grain boundaries.

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Modeling Thermophysical Characteristics of Nickel-Based Superalloys

A. A. Glotka, S. V. Haiduk & V. Yu. Ol’shanetskii

Phase field modeling of solidification in multi-component alloys with a case study on the Inconel 718 alloy

Michael Fleck, Frank Querfurth & Uwe Glatzel

Phase-Field Simulation of Microstructural Evolution in Nickel-Based Superalloys During Creep and in Low Carbon Steels During Martensite Transformation

H.-P. Chen, R. K. Kalia, E. Kaxiras, G. Lu, A. Nakano, N. Kenichi, A.C.T. van Duin, P. Vashishta, and Z. Yuan, Physical Review Letters, No. 104, 155502 (2010).

Article   Google Scholar  

F. Kristofory, M. Mohila, D. Mikulas, and J. Vitec, Acta Metallurgica Slovacia 10 (3), 236–241 (2004).

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J. Morscheiser, L. Thönnessen, and B. Friedrich, “Sulphur Control in Nickel-Based Superalloy Production,” in Proceedings of Conference on EMC (2011), pp. 1–15.

Software Package. Thermodynamic Calculations of Phase Diagrams for Multicomponent Systems . http://www.thermocalc.com.

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Authors and affiliations.

OAO Metallurgical Plant Elektrostal’, Elektrostal’, Moscow oblast, Russia

I. V. Kabanov & E. V. Butskii

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia

K. V. Grigorovich & A. M. Arsenkin

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Correspondence to E. V. Butskii .

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On the Centenary of Plant “Elektrostal”

Original Russian Text © I.V. Kabanov, E.V. Butskii, K.V. Grigorovich, A.M. Arsenkin, 2017, published in Elektrometallurgiya, 2017, No. 3, pp. 13–21.

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Kabanov, I.V., Butskii, E.V., Grigorovich, K.V. et al. Simulation of the sulfide phase formation in a KhN60VT alloy. Russ. Metall. 2017 , 447–453 (2017). https://doi.org/10.1134/S0036029517060106

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Received : 21 November 2016

Published : 23 September 2017

Issue Date : June 2017

DOI : https://doi.org/10.1134/S0036029517060106

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• addition of calcium and magnesium
• strong sulfides
• grain boundaries
• intermetallics
• melting temperature
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ION Group Campus Interview Experience 2019

ION Group  visited in our campus for recruitment for Rotational Product Developer. 

Process:  Academic criteria > Online Test > Preplacement talk > Technical Interview > ION Day(at ION Office) 

Online Test:  The first round was conducted on AMCAT test, consisting of English, Quantitative Ability, Logical ability and Programming. 

After the Preplacement talk, results were announced and total 8 students were selected for the next round. 

Technical Interview:  

Interview started with questions on Java and OOPs concepts. You need to explain the concepts with real life examples. Focus on Inheritance , Polymorphism (Runtime vs Compile time) with examples. 

Couple puzzles were asked involving variations of  puzzle-3-priests-3-devils-puzzle  and puzzle-measuring-block . 

Write a program to find missing number in the given list (variation of this . Tips- focus on different approaches and edge cases) 

About my Internship in Web development – couple Angular questions, client-server model and related questions. 

How do you implement suggestion of words when typing (For example when typing on Google, if you type wiki, you get suggestions like wikiHow, Wikipedia, etc). Focus on Implementation approach and design in real life, optimisations and tradeoffs etc  Design a coffee machine in Java using OOPS ( No. of classes required etc) 

Tips: Focus on Java and OOPS (with real life implementations). Knowledge on Design patterns will be helpful. 

Results were announced couple days later and total 3 students were invited for ION day @ION India Head office, Noida. 

Everything from travel and accommodation was provided by them. 

ION Day:  

Around 40 students from different colleges all over India were present, randomly divided into groups of 3. 

Group Activity :  Each group was given a case-study and after discussion, we need to present our ideas and thoughts. This took around 2hrs. This was the only non-elimination round in the process. 

Tips- Be calm and confident in expressing your thoughts and ideas. Interact with others. 

Next was MR round . We were given situational questions (what would you do if you were in xyz situation?) and also to design on real life problems ( Design a zero latency toll gate etc.). 

It was followed by HR round with the ION Group Country Head. 

Result was announced next day and 1 student from our college made it. Even though I couldn’t make it, it was really a great experience and learnt alot during the process.  

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