Ericsson Electronics Communication Engineer Interview Questions and Answers

Round: Test
Experience: It was a simple aptitude test in which around 150 students cleared the test.
Duration: 1 hour
Total Questions: 40

Round: Test
Experience: Three programs were given and we had to write the code in either java ,c or c++ and get the required output.Around 90 students cleared this round.
Duration: 1 hour 30 minutes
Total Questions: 3

College Name: VIT Vellore

Round: Test
Experience: The test was conducted through Cocubes. It was moderately difficult. Some of the questions are time taking. We need to be decisive in attempting such questions.
Tips: Need to manage time properly. Should assess and choose which questions to attempt and which ones to leave.
Duration: 1 hour
Total Questions: 30

Round: Test
Experience: The three questions are of three different levels.

1. You will be given two numbers. The first one is the starting point and the second one is the ending point of a range of integers. You have to count the number of integers in that range which are divisible by the first number.

Ex : INPUT : 3 18
OUTPUT : 6

2. You will be given a number. You have to find the sum of the digits. If the sum exceeds 9, you have to add the digits of the sum recursively until you a get a single digit sum.

EX : INPUT : 9999
OUTPUT : 9

Explanation: 9999 => 9 +9+9+9=36 => 3+6 =9

3. You will be given an array of characters which include ( L, R , or a number in the range '0' to '9'). A ball is kept on a line of integers initially kept at zero. The ball has to execute the instructions sequentially as follows:
(i) If an 'L' character is encountered, the ;position of the ball has to be decremented.
(ii) If an 'R' character is encountered, the position of the ball has to be incremented.
(iii) If an integer (in the range '0' to '9) is encountered , we have to go to that index in the array and execute the instruction present in that index.

Finally, after all the instructions are executed, you have to print the final position of the ball.

EX : INPUT :
Number of instruction : 5
Instructions: LR1R2

OUTPUT : 3

Explanation :
(i) Initially, the ball is at 0. Since the 0th index in the array is 'L' , the ball moves to 0-1= -1 position.
(ii) The 1st index is 'R' hence, the position of the ball is -1 +1 = 0 position.
(iii) The 2nd index is '1', hence we have to go to index 1 in the array which is 'R', hence the new position is 0+1 =1.
(iv) The 3rd index is 'R', hence the new position is 1 +1 =2.
(v) The 4th index is '2' , hence we have to go to 2nd index is '1' , hence we have to go again to 1st index , which is 'R' hence the final position is 2+1 =3.

Tips: We need to solve all the three the problems to have better chances of clearing this round.
Duration: 1 hour
Total Questions: 3

Round: Technical Interview
Experience: The interview was focussed majorly on coding. It went for about 45min with around 10 coding problems given to solve. Some basics of Computer networking are also tested in this round.
Tips: Be prepared with some basics of networking. As the company's main focus is on Telecom, good knowledge in telecom and networking would be a big advantage.

Round: Technical Interview
Experience: This round was focused on the aptitude and reasoning skills. Some puzzles were given in this round. These puzzles are of moderately complex and are more common ones in interviews. Like the (find the heavier ball among three balls using a balance in min no. of attempts).
Tips: Sometimes the interviewer tries to confuse. You need to be confident with your answers and explaination.

Round: HR Interview
Experience: The interview was more of a traditional HR round. Majorly concentrated on the final year project, personal strengths and weaknesses.

Skills: Coding Skills, Computer Networking, C Language Basics
College Name: G Pulla Reddy College of Engineering & Technology

Round: Test
Experience: There were 40 aptitude questions of variable difficulty. More questions revolved around topics like time and work, distance, speed, time, profit loss, age etc.
Tips: A regular and prior preparation will go a long way in determining a good test score.
Use tricks to solve the questions and calculations should be fast.
Duration: 30 minutes
Total Questions: 40

Round: Test
Experience: The questions weren't that tough when it came to programming. An example would be conversion of temperature from Celsius to Fahrenheit and vice versa. This was a question in my paper. So I'm hoping the difficulty would be more or less the same.
Tips: Do certified programming courses. They help you a lot in cracking good jobs.
Duration: 45 minutes
Total Questions: 3

Round: Puzzle Interview
Tips: This can be tough if you can't imagine scenarios and situations. So make sure you inculcate critical problem solving thinking in your everyday life. I feel that's the best way to do things in this round.

Round: Technical Interview
Experience: This was a short interview so not much happened.
Tips: Whatever you do just know your stuff properly.

Round: HR Interview
Experience: It was a simple interview. Basic questions and their basic answers helped me get through it.
Tips: The tip would be to stay positive in your approach while answering the questions

Skills: Technical Skills, Interpersonal Communication, Aptitude
College Name: VIT Vellore

Round: Test
Experience: There were 40 aptitude questions of variable difficulty. More questions revolved around topics like time and work, distance, speed, time, profit loss, age etc.
Tips: A regular and prior preparation will go a long way in determining a good test score.
Use tricks to solve the questions and calculations should be fast.
Duration: 30 minutes
Total Questions: 40

Round: Test
Experience: The questions weren't that tough when it came to programming. An example would be conversion of temperature from Celsius to Fahrenheit and vice versa. This was a question in my paper. So I'm hoping the difficulty would be more or less the same.
Tips: Do certified programming courses. They help you a lot in cracking good jobs.
Duration: 45 minutes
Total Questions: 3

Round: Puzzle Interview
Tips: This can be tough if you can't imagine scenarios and situations. So make sure you inculcate critical problem solving thinking in your everyday life. I feel that's the best way to do things in this round.

Round: Technical Interview
Experience: This was a short interview so not much happened.
Tips: Whatever you do just know your stuff properly.

Round: HR Interview
Experience: It was a simple interview. Basic questions and their basic answers helped me get through it.
Tips: The tip would be to stay positive in your approach while answering the questions

Skills: Technical Skill, Interpersonal Communication, Aptitude
College Name: VIT Vellore

Round: Test
Experience: There were 40 aptitude questions of variable difficulty. More questions revolved around topics like time and work, distance, speed, time, profit loss, age etc.
Tips: A regular and prior preparation will go a long way in determining a good test score.
Use tricks to solve the questions and calculations should be fast.
Duration: 30 minutes
Total Questions: 40

Round: Test
Experience: The questions weren't that tough when it came to programming. An example would be conversion of temperature from Celsius to Fahrenheit and vice versa. This was a question in my paper. So I'm hoping the difficulty would be more or less the same.
Tips: Do certified programming courses. They help you a lot in cracking good jobs.
Duration: 45 minutes
Total Questions: 3

Round: Puzzle Interview
Tips: This can be tough if you can't imagine scenarios and situations. So make sure you inculcate critical problem solving thinking in your everyday life. I feel that's the best way to do things in this round.

Round: Technical Interview
Experience: This was a short interview so not much happened.
Tips: Whatever you do just know your stuff properly.

Round: HR Interview
Experience: It was a simple interview. Basic questions and their basic answers helped me get through it.
Tips: The tip would be to stay positive in your approach while answering the questions

Skills: Technical Skill, Interpersonal Communication, Aptitude
College Name: VIT Vellore

Round: Test
Experience: It was 2.5 hour long AMCAT test comprising of Quant, Verbal ability, analytic ability, technical section comprising questions from C, DSA and other computer fundamentals.
The test is not that difficult so the cutoff generally goes high
Duration: 150 minutes

Round: Technical Interview
Experience: Started with a formal "Tell me about yourself". While I continued for 2 minutes, he read my CV word to word. Since I had always been interested in programming and so it was my strong point. But he didn't even ask my area of interest and directly asked me question from core electronics that too application based. The questions were like this:
1. "Suppose you are recruited as an ECE engineer in IRCTC. Your job is to stop the train accidents that happen every now and then. Use your Applied Electronics to construct a scheme/plan. Tell me how will you proceed?"
I was literally stunned at such a question. However I took some seconds to think and gave him 2-3 answers all applying the idea in one way or the other. Like use of modern sensors, RADAR technology, Use of automated baricates at crossings and explained it to him. He wasn't fully convinced but somehow I was able to do OK.
After that i told him that I was more comfortable in programming and computer science subjects. he neglected this altogether and kept asking me ECE questions. Next questions were like "Explain the working of IC 555 timer." I told him straight away that I didn't know it very well.
After this he moved on to ask me the difference between GSM and CDMA technology, how mobile phones work and the whole concept of cellular telephony. I had prepared well for it and told him even more than he was expecting so he was quite pleased to hear it.
Next were some questions from computer networks like how internet works, Network model etc. I told him I was studying CN currently so i gave him the basics of OSI model explaining briefly each of the 7 layers. Also told him about sub-nets, sub-net masks etc.
After this he asked me some general question from my CV about my achievements like KVPY scholarship, NTSE scholarship and about my research paper. I explained it to him to the best I could. Then I asked a couple questions from my side and this interview was over. The whole process took around 35-40 minutes.
Tips: For technical, have a solid command over all the fundamentals of important subjects. You need to start early. 3rd year is a good time to plan and start your preparation. In your summer holidays before 7th semester, don't focus your full attention on your training. It is also important but you need to take out some extra time for aptitude building, revising concepts and enhancing your communication skills. Be confident and be honest. Try to make the conversation as interesting as possible. Try to be more interested in the company. If possible, do a little homework about the company visiting your college. It will prove to be useful and certainly will give you an edge above others.

Round: HR Interview
Experience: It had hardly been 15 minutes after the completion of my technical interview and I was called for the HR round. Again it started with “tell me about yourself” but this time the lady asked me everything about my family, my schooling, my interests and all. It was a really good 30 minutes spent as the conversation was really interesting. Then she asked me whether I had any problems in relocation. Then it led to a good discussion about how is life different in Hyderabad and Chennai. I asked her a little bit about her education and how she started a formal career in management. She was very happy to respond. Lastly, there were some concluding remarks, a formal thank you and the interview was over.
Tips: Make the interview as interactive as possible. Ask a lot of questions. The person should know that you are really interested in the company. Prepare good answers for HR round well in advance.Any extracurricular activities that you have been a part of may come up in the HR/Managerial round. I was asked what have you done in your college life so far other than studies. I had a lot to say in that matter as i was involved in dramatics, debating, quizzing and other activities right from the school level. They may be interested to know how efficiently have you handled any complex or challenging situations in your life. I was the Event Executive of Fashion Show "PANACHE" in BLITZSCHLAG'13. I explained to HR what all I did to make that event a success and she was really impressed with it.

General Tips: CGPA matters. Not always but definitely it's a point worth considering when the interviewers are confused even after the completion of all the rounds about which students to select.Although not specific to this company, but other companies give a lot of credit to CGPA. It is an important factor along with the 1st written round for the shortlisting of candidates.So, maintain as good a CGPA as you can.In your technical interview you are going to be asked about at least one project that you have been involved in your college life. If some project is mentioned in your CV, it is certain that the interviewer will ask you about it. I have seen discussions as long as 1 hour or more on one's project itself.
College Name: NIT JAIPUR

Round: Group Discussion
Experience: Relevance of technology

Round: Technical Interview
Experience: 1. All project related questions .(He found some fault and asked to remove it)?
2. Why do we need garbage collection and how it is done in JAVA ?
3. Difference between TCP and UDP ?
4. In which scenario do we need UDP ?
5. Discussion on Hashmap , Collision function , heap data structure
6. Two puzzles
a. Given a bar , cut it twice and pay for 7 days?
b. three ants are running on edges of a equilateral triangle with same speed. What is prob that dey will never meet?

Round: HR Interview
Experience: 1. Tell me about yourself ?
2. Where do you see yourself in 5 yrs ?
3. Your strengths and asked to justify it (Jitni bakar kr skte ho kr do ) ?

College Name: NA

Round: Test
Experience: Consisted of Quantitative aptitude, Logical reasoning, Data Interpretation and English.(Time management is important)

Skills: C, C++, Data structure, Algorithm
College Name: na