NTT Data Senior Linux System Administrator Interview Questions, Process, and Tips

Q1. Different and high level questions not meant for 0-2 years of experience candidates.
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Q1. Linux how it works and all about linux
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Q2. About file system and selinux and sql
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Q1. Explain lambda expression
Ans. 
Lambda expression is a concise way to represent an anonymous function in programming languages.
• Lambda expressions are used to create functions without a name.

• They are often used in functional programming languages like Python and Java.

• Lambda expressions can take parameters and return a value.

• Example: (x, y) -> x + y is a lambda expression that takes two parameters and returns their sum.
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Q2. Why hibernate is better then jdbc
Ans. 
Hibernate is better than JDBC due to its object-relational mapping capabilities, automatic table creation, and improved performance.
• Hibernate provides object-relational mapping (ORM) which simplifies database interactions by mapping Java objects to database tables, eliminating the need for manual SQL queries.

• Hibernate can automatically generate SQL queries based on the Java objects, reducing the amount of code that nee...read more
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Q1. Filter names from a list that starts with A
Ans. 
Filter names starting with A from a list of strings
• Iterate through the list of strings

• Check if each string starts with 'A'

• Add the string to a new list if it starts with 'A'
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Q2. White query parameter and path variable
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Q1. How to configure NFS
Ans. 
NFS can be configured by setting up the NFS server, exporting directories, and configuring client access.
• Install NFS server package on the server

• Edit /etc/exports file to specify directories to be shared

• Restart NFS service to apply changes

• Configure client access by mounting NFS shares on client machines
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Q2. How to perform patching
Ans. 
Patching involves applying updates to software to fix vulnerabilities and improve performance.
• Identify the software that needs to be patched

• Download the necessary patches from the vendor's website

• Test the patches in a non-production environment before applying them to production systems

• Schedule a maintenance window to apply the patches

• Apply the patches using tools like yum, apt-get, or Windows Update

• Verify that the pat...read more
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Q1. Salary discussion
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Q2. Location discussion
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It was a good interview experience

Q1. Share some thing about your project
Ans. 
Designed and implemented a cloud-based monitoring system for a large-scale network infrastructure
• Utilized AWS services such as CloudWatch and Lambda functions

• Developed custom scripts for data collection and analysis

• Implemented real-time alerts and notifications for system administrators

• Improved system performance and reliability through proactive monitoring

• Collaborated with cross-functional teams to gather requirements
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Q2. Questions on core java
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30 dsa , java , dbs, oops , javascript , react js

Q1. Tell me about yourself
Ans. 
Experienced system engineer with a strong background in network infrastructure and cloud computing.
• Over 5 years of experience in designing, implementing, and maintaining complex systems

• Proficient in network security protocols such as VPNs and firewalls

• Skilled in cloud computing platforms like AWS and Azure

• Strong troubleshooting and problem-solving skills

• Excellent communication and teamwork abilities
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Q2. How you overcome fear
Ans. 
I overcome fear by facing it head-on and breaking it down into smaller, manageable steps.
• Identify the root cause of the fear

• Break down the fear into smaller tasks

• Seek support from others

• Practice relaxation techniques

• Visualize success and positive outcomes
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I dont remember it exactly now

Q1. What do you know about Itil process?
Ans. 
ITIL (Information Technology Infrastructure Library) is a set of best practices for IT service management.
• ITIL is a framework that outlines best practices for IT service management.

• It focuses on aligning IT services with the needs of the business.

• ITIL processes include incident management, change management, problem management, and more.

• ITIL helps organizations improve efficiency, reduce costs, and provide better servi...read more
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Q1. Tell me about your college project
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Q1. Related to process
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Q2. Technology used in previous company
Ans. 
At my previous company, we used a variety of technologies including AWS, Docker, Kubernetes, Jenkins, and Ansible.
• AWS (Amazon Web Services) for cloud computing services

• Docker for containerization of applications

• Kubernetes for container orchestration

• Jenkins for continuous integration and continuous deployment

• Ansible for automation of IT tasks
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