CNS Comnet Interview Questions and Answers

Round: Grammar Round
Experience: It was a written English grammar test to analyse how grammatically sound you are.
Tips: Just revise your basic English grammar like prepositions verbs nd essay/paragraph writing

Round: COMMUNICATION SKILLS Round
Experience: In this round they ask you to speak something on the given topic or sometimes group discussion . Basically they test your vocabulary, your thought process, pronunciation, accent and above all confidence.
Tips: Be confident in whatever you speak. Remember if you get nervous you will need with your words .

Round: Technical Interview
Experience: This was an online test and it had 50 questions all objective types.
Tips: Be technically sound. You cannot Google them as these search engines are blocked

College Name: Babu Banarasi Das National Institute Of Technology And Management (BBDNITM)

Interview preparation tips for other job seekers - have good understanding of basics and have expertise on any specific area.

General Tips: I joined HCL as a fresher and got Intervie

Round: Test
Experience: Aptitude, reasoning, logical, etc. 2 hours

Round: Test
Experience: I was allowed to write a test for 2hrs in that each headings seems to be different and also there is a section heading marks
Duration: 2 hours
Total Questions: 70

Round: Technical Interview
Experience: After finishing i was advised to attend 2nd round in that they ask about the detailed experience of my previous company and finally technical terms question also flows

Skills: Logical And Structured Thinking, Communication And Confidence, Attitude, Psychometric Test, Project Management

Round: Group Discussion
Duration: 10 minutes

Round: Technical + HR Interview
Experience: After he was satisfied with my answers he explained me my job role, salary and the growth in the organization
Tips: Be confident and prepare your CV well..That should do it

Round: Test
Experience: Test was online.
1. In Hadoop, Big Data & Wireless Communication section, there were 10-10 question with 15 minutes of time in each of three.
These three section were quite logical rather than calculative.

2. Quant & Apti section was quite easy. Fill in the blanks type questions were also present. There was 50 question in this section and only 12 minutes were given to solve.
Over all this section was very easy and scoring.
Tips: As a graduate or PG fresher in ECE, you can score in Mobile communication & Non-tech portion.
Try to score in Apti part as much as you can.
Duration: 1 hour
Total Questions: 80

Round: Problem Statement
Experience: In this round one person from the selection panel of five gave the three question as a problem and asked to write our own strategy to tackle.
The questions were:
1. What do you mean by a network ?
2. Problem related to LOS and non LOS communication.
3. Signal fading in Communication.
Tips: Just use your technical skills, you can easily answer these question if you have a good understanding of the Wireless communication.

Round: Coding Test.
Experience: This round was also not for elimination.
They just gave a sheet of five question of coding.The questions were:
1. To add 2 very long integer type number.
2. To draw the mirror image of a given tree.
3. To find the loop in a link list.
4. To find the max possible sum of an array of positive and negative no.
5. Ques. was related to a given figure to write the Algo to find the center of the circle.(fig. was given in the ques.).


Tips: To clear this round you need to be proficient at least in one coding language.

Round: Technical + HR Interview
Experience: They shortlisted 47 person from IIT Roorkee for the written.
Up to this round only 19 were present.
Duration of my interview was only 25-30 minutes.
There are 5 members panel(4 Tech+ 1HR).
One person in from Israel(Data mining expert),Second was from Sweden(Coding expert),Third & fourth were from India and Wireless comm. and architecture expert. 5th was HR person from India.
They started from the coding section form the test sheet ques.
He asked to explain all the coding ques and about my logic behind that.
Then they asked about Big data and Machine learning question.
As I don't know much about these topic I replied that I don't know sir.
After that they asked to explain my B.tech and M.tech project ,then they asked some ques related to project.
Then they asked ques from Wireless communication and Architecture of 1G to 5G to explain.
They asked ques from GSM, FDM, CDMA,TDM,OFDM.
They asked me the various reason behind call dropping.
Then he asked my B.tech communication subject when I told him my Analog & Digital comm. topic then he started laughing and told me that these techniques are completely outdated.
In last they asked my GATE %ile then I replied 99.42.
HR person was just observing my answering skills.

Tips: The interview was going on very fast they gave only 4-5 sec to think otherwise next ques was waiting for me.
Be confident and try to give the answer with some basic concept.
As for as my concern, They were just checking our base knowledge in there field specially in Wireless comm. and some courses in Machine learning or Data mining is a plus point.

Skills: Basic Concepts, Understanding Ability
College Name: IIT Roorkee