Cognizant Technology Solutions Interview Experience - Kolkata, September 19, 2014
Here I am to give you a detailed description of my CTS interview! The interview has three rounds: Aptitude, Technical and HR.
English (Comprehension, Para jumbles, Synonyms and Antonyms, Prepositions, Tenses, Choosing correct English Phrases) + Logical (Give stress on Syllogism, Next term patterns, Blood Relations, Directions, Conclusions, Assumptions) + Quantitative (Practice as many as you can. R. S. Agarwal is sufficient. Give stress on Simple Interests, Discounts, Distance, Time and Speed, Profit and Loss, A.P. G.P. , Allegations and Mixtures, Boats and Streams! However I would like to suggest that you must attempt all chapters in R. S. Agarwal ! Its a good Book! Moreover attempt online tests, they are helpful enough to increase your speed!) 1 month practice is enough but still you mustn't stop practicing until the day of exam! If you stop practicing it may degrade your speed.
After clearing the Online Exam, the next day I had to appear for the technical and H. R. Rounds!
Two interviews in one room. Several one to one panels were set. I entered when my name was called with all my documents. (Take Xerox copies of all your documents. Its mandatory) C.V was already submitted to them after clearing the Apti.
Sir: Ok, Sagnik tell me something about yourself.
Me: I introduced myself in about 1-2 sentences.
Sir: Tell me something more. About your background, parents.
Me: I answered accordingly.
Sir: Ok, Sagnik so how do you rate yourself among your classmates? I mean according to CGPA how would you like to rate yourself? Top 10 or Top 20 or what?
Me: That's a difficult question sir, as in that case I will have to compare my CGPA's with everyone!
Sir: Still, if you have to give an estimate.
Me: Top 10 Sir!
Sir: You have 8.8 in all. Still top 10? I mean you should have been at top 5!
Me: Ya maybe, but I think Marks are not the only way to judge someone.
Sir: Ya that's correct. Ok Sagnik what are your hobbies?
Me: Reading story books, watching movies. (to this he suddenly interrupted me and asked what kind of movies do I watch).
Me: Horror movies, specially Korean horror!
(To this he clapped his forehead with his hands and started looking at me astonishingly).
Sir: korean? Why Korean?
Me: Sir, they are easily available, Plots are mind-boggling! English subtitles are also available!
Sir: But still, why Korean! (he repeated this almost 3 times :P) then after getting my same answer he said, "Ok So thats what you do! Watch korean Movies! (Smiled slightly) ".
Sir: Ok Sagnik do you know that you could be placed in a field different to that of yours. I mean apart from technical! So are you ok with that?
Me: Ya Sir! I'm perfectly okay! I will try to nurture myself and would like to gather experience from all fields as a fresher.
Sir: Are you ready to go outside Kolkata?
Me: Yes Sir!
Sir: Okay, now I would like to ask you some questions from your field! Sagnik which Database Management system is best according to you and why?
Me: At first, I was at a loss, then he hinted me the categories to which I replied, "Relational Database Sir! Because it's the theoretical foundation from which the other databases have come. Developing tables, designs and Normalization are prior to writing Queries or transactions".
Sir: Okay! Can you tell me which is the best sorting algorithm? and Why?
Me: Its Merge Sort as its running time is O (nlogn) in the worst case and its stable! (Don't say Heap Sort as its not stable).
Sir: Okay then what is the difference between LAN and WAN?
Me: LAN (local area network) connects computers to a small range such as a campus or a complex whereas Wide Area Network connects several LAN's.
Sir: Okay, what is the application of a Binary tree?
Me: Sir its used for searching (I didn't know the correct answer so I tried to make up. :P).
Sir: Ya, most of the data structures are used for searching but whats binary tree used for?
Me: (i started messing up my answers as I was completely blank to this question. To this he hinted me by drawing on a piece of paper a linear array and a binary tree. ).
Sir: Searching is more suitable in which of these two?
Me: Binary tree as we can reach a node more quickly!
Sir: Which mode of data transmission do you think is reliable?
Me: TCP is a reliable mode of transmission. It ensures the delivery of packets by establishing 3 way handshaking. (to my knowledge TCP is reliable but he confused me with his logic which was true!).
Sir: Ya But Suppose when the Packets are getting delivered then if the channel is faulty or suppose the packets are faulty then?
Me: I didn't know the answer. I kept mum.
Sir: Can nlogn become n^2?
Me: No sir never!
Sir: Okay, now what shall I ask? (He was scanning my 6th sem Marksheet and was asking questions from the related subjects! Unfortunately I had scored 9 in that sem and so I wasn't able to deny him) Shall I ask you from OS?
Me: Right now this subject is in my Areas of improvement but still you can ask me. I will try to recall and answer you to the best of my knowledge.
Sir: okay okay its fine! Shall I ask you from Operation Research?
Me: (to this I was compelled to say Yes as I had got an O grade in that subject). Yes Sir! (was tensed a lot as I wasn't able to guess what could he ask).
Sir: Whats Dijkstra's algorithm?
Me: Shortest path to reach a destination node from a single node!
Sir: Can you explain how its done?
Me: Cost for all the paths from a source node to the destination node is calculated. Then the Shortest path for each node is selected!
Sir: Can you write an algorithm for this?
Me: Right now I don't remember but I will upgrade myself!
Sir: it's alright! So Sagnik, Nice to talk to you! thanks for giving time to us! (He shook his hands with me. I left the room. ).
After this I was selected for the HR round. This round is just a formality. If you clear Apti + Technical you are 99.99% in CTS. However 0. 01% they may reject you from the HR round if your luck is poor! Out of 116 students who were selected for the HR round in my college, 115 got placed in CTS! That one guy had a poor luck that day!
Me: Good Morning Sir!
Sir: He looked at his watch and said "Good Afternoon".
Me: Sorry sir Good Afternoon. (to this He smiled wholeheartedly).
Sir: Tell me something about yourself!
Me: Explained everything.
Sir: Any Projects undertaken?
Me: Android Media Player.
Sir: What was your role?
Me: I designed the interfaces. Played roles in Coding and Testing too.
Sir: What are your hobbies?
Me: Told my hobbies.
Sir: Ok Sagnik ! Nice to meet you!
After three to four days I got to know that I was selected! The names were announced by our college faculty. :) :).
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