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Telenor Senior Java Developer Interview Questions and Answers

Updated 19 Jul 2024

Telenor Senior Java Developer Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Java take home assignment

Round 2 - Technical 

(1 Question)

  • Q1. Discussing coding assignment

Interview questions from similar companies

I applied via Campus Placement and was interviewed before Aug 2021. There were 2 interview rounds.

Round 1 - Aptitude Test 

Mcq based on language

Round 2 - One-on-one 

(1 Question)

  • Q1. Do you know STL. Find loop in linked list.
  • Ans. 

    STL knowledge and finding loop in linked list

    • STL (Standard Template Library) is a C++ library that provides containers, algorithms, and iterators.

    • To find a loop in a linked list, we can use Floyd's cycle-finding algorithm.

    • In this algorithm, we use two pointers, one moving at a slower pace and the other at a faster pace.

    • If there is a loop in the linked list, the faster pointer will eventually catch up to the slower poin...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Have basic DSA and OOPs understanding. Questions are not tough. Basic knowledge is enough.

Skills evaluated in this interview

Interview Questionnaire 

3 Questions

  • Q1. The questions primarily started with discussion on my internships and minor project
  • Q2. Many questions were asked about OOPs concepts like virtual function, multiple inheritance, function overloading etc you are supposed to define and implement all of them on paper
  • Q3. I was asked about my favorite subject, opted computer networks. So, was asked about computer networks basics like ISO OSI, virtual LANs, QoS, AdHoc networks, WiiMax and Wifi

Interview Preparation Tips

Round: Technical Interview
Experience: Technical continues for about 35 minutes, the questions primarily started with discussion on my internships and minor project.
Many questions were asked about OOPs concepts like virtual function, multiple inheritance, function overloading etc you are supposed to define and implement all of them on paper.
I was asked about my favorite subject, opted computer networks. So, was asked about computer networks basics like ISO OSI, virtual LANs, QoS, AdHoc networks, WiiMax and Wifi.

Round: HR Interview
Experience: I was primarily asked about my family background, likes, hobbies etc

College Name: NA

Interview Questionnaire 

1 Question

  • Q1. Tell mee about your self?

Interview Preparation Tips

Interview preparation tips for other job seekers - Give properly reply being confident.

I applied via Naukri.com and was interviewed before Jul 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. It's was my first job in Ericsson question being asked were linux basic nothing much

Interview Preparation Tips

Interview preparation tips for other job seekers - Well we should have good knowledge on linux python, perl, shell scripting

I applied via Recruitment Consultant and was interviewed in Sep 2020. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Regarding SAP Data Services
  • Q2. Designer tool, Project, wf, df, transforms, types of transforms, performance optimisation techniques etc
  • Q3. Hana

Interview Preparation Tips

Interview preparation tips for other job seekers - Interview was good. interviewer was friendly and wherever I couldnt answer his questions he answered them and made me understand.

I applied via Referral and was interviewed before Jan 2021. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Telecom domine question
  • Q2. Auto Cad basics and experience on telecom and wireless based question

Interview Preparation Tips

Interview preparation tips for other job seekers - Only 2round for experience candidate

I applied via Recruitment Consultant and was interviewed in May 2019. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Capacity and coverage planning, ODSC channels and its coverage radius, TAC,LAC,NAC, RRC,eRAB, S1 signalling. LTE interfaces and their functions, PRB formations and no of PRB required to support single volt...
  • Q2. Why would you like to change?

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared for odds and competent with technologies

I was interviewed before Sep 2016.

Interview Questionnaire 

16 Questions

  • Q1. On what technology you have worked?
  • Ans. 

    I have worked on various technologies including Java, Python, AWS, Docker, and Kubernetes.

    • Java

    • Python

    • AWS

    • Docker

    • Kubernetes

  • Answered by AI
  • Q2. Case studies of daily operational activities?
  • Ans. 

    Daily operational activities case studies

    • Case study of optimizing production line for efficiency

    • Case study of implementing new safety protocols in a manufacturing plant

    • Case study of troubleshooting and resolving technical issues in a software development team

    • Case study of streamlining inventory management in a retail store

    • Case study of improving customer service processes in a call center

  • Answered by AI
  • Q3. What is project management?
  • Ans. 

    Project management is the process of planning, organizing, and overseeing the execution of a project from start to finish.

    • It involves defining project goals and objectives

    • Creating a project plan and timeline

    • Assigning tasks and responsibilities to team members

    • Monitoring progress and making adjustments as needed

    • Ensuring that the project is completed on time, within budget, and meets the desired quality standards

    • Examples ...

  • Answered by AI
  • Q4. What is financial and cost control during project management?
  • Ans. 

    Financial and cost control is the process of monitoring and managing project expenses to ensure they stay within budget.

    • Developing a detailed budget plan

    • Tracking expenses and comparing them to the budget plan

    • Identifying and addressing cost overruns

    • Negotiating with vendors to get the best prices

    • Implementing cost-saving measures

    • Regularly reporting on financial status to stakeholders

  • Answered by AI
  • Q5. What is resource management?
  • Ans. 

    Resource management is the process of planning, allocating, and optimizing resources to achieve organizational goals.

    • It involves identifying the resources needed for a project or task

    • Allocating those resources in an efficient manner

    • Monitoring and controlling resource usage to ensure optimal performance

    • Examples include managing personnel, finances, equipment, and time

    • Effective resource management can lead to increased p

  • Answered by AI
  • Q6. What is 2G , 3G, 4G call flow?
  • Ans. 

    2G, 3G, and 4G call flow are the processes involved in establishing and maintaining a mobile phone call.

    • 2G call flow involves circuit-switched technology and uses Time Division Multiple Access (TDMA) for voice transmission.

    • 3G call flow uses packet-switched technology and supports both voice and data transmission.

    • 4G call flow uses Long-Term Evolution (LTE) technology and provides high-speed data transmission.

    • All call fl...

  • Answered by AI
  • Q7. What is single RAN?
  • Ans. 

    Single RAN is a network architecture that allows multiple wireless technologies to be supported on a single physical network.

    • Single RAN stands for Single Radio Access Network.

    • It enables multiple wireless technologies such as 2G, 3G, 4G, and 5G to be supported on a single physical network.

    • This reduces the need for multiple hardware and software components, resulting in cost savings and simplified network management.

    • Sing...

  • Answered by AI
  • Q8. What is VOLTE?
  • Ans. 

    VOLTE stands for Voice over LTE. It is a technology that allows voice calls to be made over a 4G LTE network.

    • VOLTE uses IP packets to transmit voice calls over the LTE network

    • It provides better call quality and faster call setup times compared to traditional 2G/3G networks

    • VOLTE also allows for simultaneous voice and data usage on the same network

    • Examples of VOLTE-enabled devices include iPhone 6 and above, Samsung Gala...

  • Answered by AI
  • Q9. Difference between LTE & VOLTE?
  • Ans. 

    LTE is a standard for wireless broadband communication while VoLTE is a technology that enables voice calls over LTE network.

    • LTE stands for Long-Term Evolution and is a standard for wireless broadband communication.

    • VoLTE stands for Voice over LTE and is a technology that enables voice calls over LTE network.

    • LTE is used for data transfer while VoLTE is used for voice calls.

    • VoLTE provides better call quality and faster c...

  • Answered by AI
  • Q10. What is transport network?
  • Ans. 

    Transport network refers to the infrastructure that enables the movement of people, goods, and information.

    • Transport network includes roads, railways, airports, seaports, and communication networks.

    • It plays a crucial role in the economy by facilitating trade and commerce.

    • Examples of transport networks include the interstate highway system in the US and the European railway network.

    • Transport network planning involves op...

  • Answered by AI
  • Q11. Difference between ABIS over IP and ABIS over TDM?
  • Ans. 

    ABIS over IP and ABIS over TDM are two different methods of transmitting biometric data.

    • ABIS over IP uses internet protocol to transmit biometric data while ABIS over TDM uses time-division multiplexing.

    • ABIS over IP is more flexible and scalable than ABIS over TDM.

    • ABIS over TDM is more reliable and secure than ABIS over IP.

    • ABIS over IP is suitable for remote locations while ABIS over TDM is suitable for local networks.

    • ...

  • Answered by AI
  • Q12. Basic architecture of 2G , 3G & 4G?
  • Ans. 

    2G, 3G, and 4G are mobile network technologies with different architectures.

    • 2G uses circuit-switched technology and is primarily used for voice calls and text messaging.

    • 3G uses packet-switched technology and offers faster data transfer rates than 2G.

    • 4G uses all-IP packet-switched technology and provides even faster data transfer rates than 3G.

    • 4G also supports advanced features like VoLTE and carrier aggregation.

    • Each ge...

  • Answered by AI
  • Q13. Introduce yourself?
  • Ans. 

    I am a Senior engineer with 10+ years of experience in software development, specializing in backend systems and cloud technologies.

    • 10+ years of experience in software development

    • Specialize in backend systems and cloud technologies

    • Strong problem-solving skills

    • Experience with large-scale distributed systems

    • Proficient in programming languages such as Java, Python, and Go

  • Answered by AI
  • Q14. What are the experiences of your previous companies?
  • Ans. 

    I have worked in various companies ranging from startups to large corporations, gaining experience in diverse technologies and industries.

    • Worked in a startup where I was responsible for developing a scalable backend system using Node.js and MongoDB.

    • At a mid-sized company, I led a team in implementing CI/CD pipelines for faster and more reliable software delivery.

    • In a large corporation, I worked on optimizing performanc...

  • Answered by AI
  • Q15. Why do you want to join this company?
  • Ans. 

    I am impressed by the company's innovative projects and strong reputation in the industry.

    • Company's reputation for cutting-edge technology

    • Opportunity to work on challenging projects

    • Positive reviews from current employees

  • Answered by AI
  • Q16. What is your notice period? Is it negotiable or not?
  • Ans. 

    My notice period is currently 3 months, but it may be negotiable depending on the circumstances.

    • My current notice period is 3 months

    • I am open to negotiation depending on the circumstances

    • I can provide examples of when I have negotiated notice periods in the past

  • Answered by AI

Interview Preparation Tips

Round: Resume Shortlist
Experience: Submitted resume online through portal and received the call. Technical Telephonic interview was scheduled.

Tips: Resume should be as per the desired profile.

Round: Technical Interview
Experience: In this round interviewer asks basic technical questions based on the previous experiences that was mentioned in my resume.
Tips: Study all the points mentioned in the resume very deeply.

Round: Technical Interview
Tips: Given your answers to the point. It should be in brief .

Round: HR Interview
Tips: Conversation should be in proper communication. Try to convince the HR for joining. Negotiate the salary as per the profile offered to you.

Skills: Technical Skill, Communication And Confidence, Team Working Ability

Skills evaluated in this interview

I was interviewed before Mar 2021.

Round 1 - Group Discussion 

Round duration - 15 minutes
Round difficulty - Easy

This was a group discussion round where we were divided into groups of 10 and we had 15 minutes for GD.

Round 2 - Face to Face 

(6 Questions)

Round duration - 60 minutes
Round difficulty - Medium

This is all about how good you are with the fundamentals. Out of 10 I would give it a 6.5 on difficulty.

  • Q1. 

    Reverse the String Problem Statement

    You are given a string STR which contains alphabets, numbers, and special characters. Your task is to reverse the string.

    Example:

    Input:
    STR = "abcde"
    Output:
    "e...
  • Ans. 

    Reverse a given string containing alphabets, numbers, and special characters.

    • Iterate through the string from the end to the beginning and append each character to a new string.

    • Use built-in functions like reverse() or StringBuilder in languages like Python or Java for efficient reversal.

    • Handle special characters and numbers while reversing the string.

    • Ensure to consider the constraints on the length of the string and the

  • Answered by AI
  • Q2. What is a deadlock?
  • Ans. 

    A deadlock is a situation in which two or more processes are unable to proceed because each is waiting for the other to release a resource.

    • Occurs in multitasking environments where processes compete for limited resources

    • Can be resolved using techniques like deadlock prevention, deadlock avoidance, and deadlock detection

    • Example: Process A holds Resource X and waits for Resource Y, while Process B holds Resource Y and wa

  • Answered by AI
  • Q3. What is a thread?
  • Ans. 

    A thread is a lightweight sub-process that allows concurrent execution within a single process.

    • Threads share the same memory space within a process.

    • Threads are used to achieve parallelism and improve performance.

    • Examples of threads include the main thread in a program and worker threads in a multi-threaded application.

  • Answered by AI
  • Q4. What is the difference between Multiprocessing and Multiprogramming?
  • Ans. 

    Multiprocessing involves multiple processors executing multiple tasks simultaneously, while multiprogramming involves multiple programs sharing a single processor by switching between them.

    • Multiprocessing utilizes multiple processors to execute multiple tasks concurrently.

    • Multiprogramming involves multiple programs sharing a single processor by switching between them.

    • Multiprocessing is more efficient in terms of perfor...

  • Answered by AI
  • Q5. Can you explain the process life cycle in an operating system?
  • Ans. 

    Process life cycle in an operating system involves creation, execution, termination, and resource management.

    • Creation: When a process is created, it is assigned a unique process ID and allocated necessary resources.

    • Execution: The process is then scheduled by the operating system to run on the CPU.

    • Termination: Once the process completes its task or is terminated by the user, it is removed from memory.

    • Resource Management...

  • Answered by AI
  • Q6. What are the differences between Windows XP and Windows 7?
  • Ans. 

    Windows XP and Windows 7 are both operating systems developed by Microsoft, but they have several key differences.

    • User interface: Windows 7 has a more modern and user-friendly interface compared to Windows XP.

    • Performance: Windows 7 is generally faster and more stable than Windows XP.

    • Security: Windows 7 has more advanced security features and updates compared to Windows XP.

    • Hardware support: Windows 7 supports newer hard...

  • Answered by AI
Round 3 - Face to Face 

(6 Questions)

Round duration - 60 minutes
Round difficulty - Easy

Technical round with questions on DBMS and Networking mainly.

  • Q1. What is the difference between RDBMS and DBMS?
  • Ans. 

    RDBMS is a type of DBMS that stores data in a structured format with relationships between tables.

    • RDBMS enforces referential integrity and allows for normalization of data.

    • DBMS is a general term for any system that manages databases, while RDBMS specifically refers to relational databases.

    • Examples of RDBMS include MySQL, Oracle, and SQL Server.

    • Examples of DBMS include MongoDB and Redis.

  • Answered by AI
  • Q2. What is an Object-Oriented Database Management System (OODBMS)?
  • Ans. 

    An Object-Oriented Database Management System (OODBMS) is a type of database management system that supports the creation and management of objects in a database.

    • OODBMS stores data in the form of objects, which can contain attributes and methods.

    • It allows for complex data structures and relationships to be represented more easily.

    • Examples of OODBMS include db4o, ObjectDB, and ObjectStore.

  • Answered by AI
  • Q3. How do you find the number of unique values in a SQL database?
  • Ans. 

    Use the COUNT DISTINCT function in SQL to find the number of unique values in a database.

    • Use the COUNT DISTINCT function along with the column name to count the number of unique values in that column.

    • For example, SELECT COUNT(DISTINCT column_name) FROM table_name;

    • You can also use GROUP BY to find the number of unique values for multiple columns.

  • Answered by AI
  • Q4. What is the difference between a hub and a switch in networking?
  • Ans. 

    A hub operates at the physical layer and broadcasts data to all devices on the network, while a switch operates at the data link layer and forwards data only to the intended recipient.

    • Hub operates at the physical layer, while switch operates at the data link layer

    • Hub broadcasts data to all devices on the network, while switch forwards data only to the intended recipient

    • Switch is more efficient and secure compared to a

  • Answered by AI
  • Q5. Can you explain the different OSI layers?
  • Ans. 

    The OSI (Open Systems Interconnection) model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven different layers.

    • Physical Layer: Deals with the physical connection between devices. Example: Ethernet cables.

    • Data Link Layer: Responsible for node-to-node communication. Example: MAC addresses.

    • Network Layer: Manages routing of data packets. Example: IP addresses.

    • T...

  • Answered by AI
  • Q6. What are the different protocols supported at each OSI layer?
  • Ans. 

    Different protocols supported at each OSI layer

    • Layer 1 (Physical): Ethernet, Wi-Fi, Bluetooth

    • Layer 2 (Data Link): MAC, PPP, HDLC

    • Layer 3 (Network): IP, ICMP, ARP

    • Layer 4 (Transport): TCP, UDP, SCTP

    • Layer 5 (Session): NetBIOS, PPTP

    • Layer 6 (Presentation): SSL, TLS

    • Layer 7 (Application): HTTP, FTP, SMTP

  • Answered by AI
Round 4 - HR 

Round duration - 15 minutes
Round difficulty - Easy

IF you make it to the HR round you are selected. All 28 that attended got selected . It was more like stuff for formality. The usual questions.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAEricsson India interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPS, DBMS, OSTime required to prepare for the interview - 4 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

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Telenor Interview FAQs

How many rounds are there in Telenor Senior Java Developer interview?
Telenor interview process usually has 2 rounds. The most common rounds in the Telenor interview process are Coding Test and Technical.

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Telenor Senior Java Developer Interview Process

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