Ericsson Interview Questions, Process, and Tips

Q1. This was Tech 1 round, linux basic commands were asked. Below are some of the topics- monitoring disk utilization File system creation User management Ownership and permissions
Ans. It was an easy round for me, if you are working as linux admin you can easily go through that. Monitoring - top, sar Disk utilization - du
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Q2. Define the steps of File system creation.
Ans. 
Steps for file system creation involve partitioning, formatting, and mounting the file system.
• Partition the disk using tools like fdisk or parted

• Format the partition with a file system like ext4 or xfs

• Create a mount point directory

• Mount the file system to the mount point

• Update /etc/fstab to automatically mount the file system on boot
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Q3. Why tcpdump is used?
Ans. 
tcpdump is used for network troubleshooting and analysis by capturing and analyzing network packets.
• Captures network packets for analysis

• Helps in troubleshooting network issues

• Can be used to monitor network traffic

• Provides detailed information about network communication

• Useful for security analysis and monitoring
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Q4. How we can transfer file from one server to other server?
Ans. 
Files can be transferred from one server to another using tools like SCP, SFTP, or rsync.
• Use SCP (Secure Copy Protocol) to securely transfer files between servers. Example: scp file.txt user@server2:/path/to/directory

• Use SFTP (SSH File Transfer Protocol) for interactive file transfers. Example: sftp user@server2

• Use rsync for efficient synchronization of files between servers. Example: rsync -avz file.txt user@server2:/
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Q5. How you can schedule a job regularly?
Ans. 
You can schedule a job regularly using cron jobs in Linux.
• Use the crontab command to edit the cron table

• Specify the schedule using the appropriate syntax (minute, hour, day of month, month, day of week)

• For example, to schedule a job to run every day at 3am, you would add the following line to the cron table: 0 3 * * * /path/to/command
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Q6. What is Hard link and soft link?
Ans. 
Hard links and soft links are two types of links used in Unix-like operating systems to create shortcuts to files.
• Hard links are direct pointers to the inode of a file, while soft links are indirect pointers to the file name.

• Hard links cannot link directories or files on different filesystems, while soft links can.

• If the original file is deleted, hard links will still point to the data, while soft links will be broken.

• ...read more
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Q1. What is /mnt and fstab?
Ans. 
The /mnt directory is used as a mount point for temporary mounting of filesystems, and fstab is a configuration file that lists filesystems to be mounted at boot.
• The /mnt directory is commonly used for temporarily mounting external storage devices or network shares.

• The fstab file is located at /etc/fstab and contains information about filesystems to be mounted at boot time.

• Entries in fstab include the device to mount, ...read more
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Q2. You are unable to unmount a file system, what will you do?
Ans. 
Check for any processes or open files using the file system, then force unmount if necessary.
• Check for any processes or applications currently using the file system with 'lsof' command

• Kill any processes that are using the file system if necessary

• Try unmounting the file system again using 'umount -l' to force unmount if needed
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Q3. What do you understand by NFS?
Ans. 
NFS stands for Network File System, a distributed file system protocol that allows a user on a client computer to access files over a network.
• NFS allows a user to access files on a remote server as if they were local files.

• It is commonly used in Unix and Linux environments for sharing files and directories.

• NFS uses RPC (Remote Procedure Call) to communicate between the client and server.

• It provides centralized storage ...read more
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Q4. Define Boot process.
Ans. 
Boot process is the sequence of steps that occur when a computer system is starting up.
• BIOS/UEFI initialization

• Loading the bootloader

• Loading the kernel

• Init process starts

• Launching user space processes
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Q5. Disk is assigned from the storage/VMware nut it is not visible for fs expansion, what will you do?
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Q1. In this round, most of the questions from the Resume. Questions related to background, academics, feasibility.
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Q2. Behavioral questions and your stickness to the organisation is checked at this level.
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Q1. Related to microservices design patterns. Stangler fig, saga, circuit breaker
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Q2. What are the basics of Angular, including how to debug Angular code and the functionality of components?
Ans. 
Angular is a popular front-end framework for building web applications, with components being the building blocks of Angular applications.
• Angular is a front-end framework developed by Google for building web applications.

• Components are the basic building blocks of Angular applications, each representing a part of the user interface.

• To debug Angular code, developers can use tools like Chrome DevTools or Angular's built-...read more
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Q1. Angular , security, java , streams, design patterns, basic coding example, time complexity, spring boot
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Q1. Why do you want to join this organization?
Ans. 
I want to join this organization because of its reputation for innovation and commitment to excellence.
• Impressed by the organization's track record of successful projects

• Excited about the opportunity to work with cutting-edge technology

• Interested in the collaborative and supportive work culture

• Believe in the organization's values and mission
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Q2. Other behavoural questions
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Q1. Tell me about yourself.
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Q2. Why do you want to join this organization?
Ans. 
I want to join this organization because of its reputation for innovation and commitment to excellence.
• Strong reputation for innovation in the industry

• Commitment to excellence in delivering solutions

• Opportunities for professional growth and development
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Q3. What strategies can be employed to motivate your team effectively?
Ans. 
Effective team motivation strategies include setting clear goals, providing recognition, fostering open communication, offering opportunities for growth, and leading by example.
• Set clear and achievable goals for the team to work towards

• Provide regular recognition and rewards for team members' hard work and achievements

• Foster open communication and encourage feedback from team members

• Offer opportunities for growth and d...read more
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English, Quant & Reasoning- 3 section, each section 15 que, Total 45 minutes & 45 questions, cut off for each section

Q1. Java What is JVM,JRE,JDK? what is the difference between class and instance variable in java? what is string Pool? write a code in java(prefer a good standard question) Web development if you have inter...read more
Ans. 
To build a web application, I would use a combination of front-end technologies like HTML, CSS, and JavaScript, along with back-end technologies like Node.js and MongoDB.
• Use HTML for structuring the content of the web pages

• Use CSS for styling the web pages and making them visually appealing

• Use JavaScript for adding interactivity to the web pages and handling user input

• Use Node.js for server-side scripting and handling ...read more
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Q2. If you have azure certification what is azure, what is Azure Blob Storage, What is ARM, what is horizontal Scaling?
Ans. 
Azure is a cloud computing platform by Microsoft. Azure Blob Storage is a service for storing large amounts of unstructured data. ARM stands for Azure Resource Manager, used for managing resources in Azure. Horizontal scaling is increasing the number of instances of a service to distribute load.
• Azure is a cloud computing platform by Microsoft

• Azure Blob Storage is a service for storing large amounts of unstructured data

• ...read more
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Q1. Why cse? explain a project (they might ask about a project in your resume)
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Q2. How you solved the problems that you have faced while working on projects?
Ans. 
I approach problems by breaking them down into smaller parts, analyzing root causes, seeking input from team members, and implementing solutions systematically.
• Identify the root cause of the problem

• Break down the problem into smaller parts

• Seek input from team members for different perspectives

• Implement solutions systematically

• Learn from the experience to prevent similar issues in the future
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Q1. Introduction Family Background Do you have any placement/internship offers in your hand? if so, why Ericsson At last, they will tell you about stipend, role
Ans. 
Yes, I have internship offers from Ericsson due to their reputation for innovation and cutting-edge technology.
• I have received internship offers from Ericsson because of their reputation for innovation and cutting-edge technology.

• I am excited about the opportunity to work with a global leader in telecommunications.

• I believe that interning at Ericsson will provide me with valuable experience and skills that will benefit
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Q1. Call flow 4G 5G
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Q2. Troubleshooting of subscriber issues
Ans. 
Troubleshooting subscriber issues involves identifying and resolving network connectivity problems for individual users.
• Gather information about the issue from the subscriber

• Check network configurations and settings

• Perform network tests to identify the source of the problem

• Isolate the issue to determine if it is specific to the subscriber or a larger network problem

• Implement solutions to resolve the problem and ensure
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Q1. PCRF AND CLOUD INFRASTRUCTURE
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Q2. Telecommunication knowledge
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