Questions entretien chez One97 Communications

Entretien

Written 1 : Technical and Aptitude.
Written 2: Written Coding

Written 1 was Normal Written exam based on fundamentals of Aptitude and Computer Science.

Written 2:
Few Questions I remembered :

Q1 :

     char a;
     int i = 300;
     a = &i;
     a++;
     *a=2;
     printf("%d",i);
Q2 :

 Imagine you have a special keyboard with the following keys:
        A
        Ctrl+A
        Ctrl+C
        Ctrl+V
where CTRL+A, CTRL+C, CTRL+V each acts as one function key for “Select All”, “Copy”, and “Paste” operations respectively.
If you can only press the keyboard for N times (with the above four keys), please write a program to produce maximum numbers of A. If possible, please also print out the sequence of keys.
That is to say, the input parameter is N (No. of keys that you can press), the output is M (No. of As that you can produce).

Q3 : Consider a Binary Tree not necessarily BST,Remove all nodes which don’t lie in any path with sum>= k.

Q4: Given an array arrange it in the form a<b>c<d>e<f>g……….

Q5 : Given an array of numbers arrange it in the form of a single number such that the concluded number is
the maximum.
e.g. given : 99,8,76,45,66,9,7,33,5,42
O/P : 99987766654233

Sectional Cut-off for O/P and Coding Questions.
Marking was done against correct approach not the exact answers.

Round 1 (Technical):
Q1: How will you store 800 Million records in database.
Q2: Data storage of double and float differs in C/C++ and Java How is it ???
Q2: Transfer data between a program written in Java and C#.
Q3: I need to establish a network in which I will be sure of security ,How will you proceed
Q4: A and B are two sets Write a non nested query so that I can get the data in B but not in A.
Q5: 000…………..? 11111111111111111111…………….? Write a Program which find the index of the
start of series 11111111…..?.

Round 2 (Technical):
Q1: Give your introduction along with your technical skills.
Q2: Explain your project “Stock Prediction”
Q3: I want to retrieve records from a table from date 1 – 15.I don’t want to use range Queries
Suggest the optimal solutions…
I suggest Indexing on date column.
He insisted on alternate ways.
“he said what you think you can do……”
Q4: What is Unique and NULL Constraint ?
Difference between Primary Key and Unique.
How many maximum records in Unique can be NULL.
Q5: Write Most optimized algorithm for finding a Word in sentence.
(I used Trie approach , he scolded me for not asking the sentence is sorted or not.. the used Binary search.)
Q6: Difference between thread and process.
What is PCB ?
What is synchronization ??
What is Semaphore ?
Explain and solve Producer Consumer Problem using Semaphore ? What is Drawback here
What is monitor ? Solve Producer Consumer Problem using Monitor and explain pros and cons.

Final 8 candidates from Delhi region selected.

Round 3(Final Round Managerial and Technical):
Q1 : What you want to do in your Life ?? Discussion life as a placement coordinator ?
What you did ? your duties ? differences you made …
Q2 : Doing Post Market Analysis of a Stock Market of Previous Month .
Write a Program of Stock Buy Sell to Maximize Profit.
Q3 : Explain Cursor ? its types ? differences between them ? What to use When ?
Q4 : Explain Matrix ? Matrix Multiplication? Difference ways of Matrix Multiplication ?Explain Both.
Q5 : What are you doing right now ??? will you join us ?? Why ??

Students from 30 Colleges of India are evaluated and Top 25 are offered the JOB.

I was not one of them.

Entretien

It was quite easy to clear first round with basic understanding of algorithms.
The second round was comparatively though. The interview was online(google meet), and the interviewer was quite good and helpful at times.

Candidature

J'ai postulé en ligne. Le processus a pris 2 semaines. J'ai passé un entretien à One97 Communications (Noida (Inde)) en mars 2020.

Entretien

There were a total of 4 rounds all are virtual over Skype.

First Round: Telephonic Interview Technical
In this round interviewer asked lots of question on Core Java, JSP, Spring Boot, Hibernate, Multithreading , Mysql , JavaScript, Maven, Git, Restful Webservices, etc.

Second Round: Coding Round
String Manipulation questions, Reverse an expression , Custom HashMap Design.

Third Round : Managerial Round
Previous project experience questions, Design patterns, Spring Security, Linux app deployment questions.

Fourth Round: Technical (Having multiple interviwer).
Spring JDBCTemplate, ThreadDump , Hibernate questions.

Candidature

J'ai postulé en ligne. J'ai passé un entretien à One97 Communications (Noida (Inde)) en septembre 2018.

Entretien

It was good even the whole interview process was conducted in a well behaved manner .
They took only one day to complete the whole interview process .
As it is a product based company there is lot of learning and future scope .

Candidature

J'ai postulé en personne. J'ai passé un entretien à One97 Communications.

Entretien

When he reached the interview for 15 minutes after the head came, asked some simple questions and asked about his present company and work and he shared his experiences and told some important things about sales.

Candidature

J'ai postulé en ligne. Le processus a pris 4 jours. J'ai passé un entretien à One97 Communications (Hyderâbâd (Inde)) en avril 2018.

Entretien

The interview process is a multi-stage process for hiring new employees. The interview process typically includes the following steps: writing a job description, posting a job, scheduling interviews, conducting preliminary interviews, conducting in-person interviews, following up with candidates and making a hire.

Candidature

J'ai postulé via un établissement de l'enseignement supérieur ou universitaire.. Le processus a pris 2 jours. J'ai passé un entretien à One97 Communications (Patiala (Inde)) en avril 2018.

Entretien

The process included 4 rounds. First round was coding round that took place on cocubes, it had three coding questions, not very difficult but required good knowledge of data structure and programming concepts. around 70 students gave the test and 30 students were shortlisted for the interviews. The 2nd round was a technical interview round, basically the interviewer asked questions related to the test questions, data structure, coding concepts. then third round was based on the practical implementation of the data structure concepts and final round was the HR round concentrated on profile discussion and hobbies.

Candidature

J'ai postulé via une autre source. Le processus a pris 1 jour. J'ai passé un entretien à One97 Communications (Noida (Inde)) en novembre 2017.

Entretien

There are 3 rounds .
1. apptitude round (General appti , Java programming questions , linux , sql )
2. face to face (taken by one of the senior)
3. face to face in group pannel by seniors

Candidature

J'ai postulé via une autre source. Le processus a pris 1 jour. J'ai passé un entretien à One97 Communications (Noida (Inde)) en novembre 2017.

Entretien

The interview process is not so difficult . It is having three rounds. First round is written test, second and third is face to face interview of one hour each.

Candidature

J'ai postulé en ligne. Le processus a pris +2 semaines. J'ai passé un entretien à One97 Communications (Noida (Inde)) en novembre 2017.

Entretien

First i have to apply online then they fix the interview for face to face after that they give you a assignment for a week after that they review and revert back to you then manager take your interview after that design head have some question with then finally HR call you for further information