TCS Linux System Engineer Interview Questions and Answers

It was about an aptitude test which is on English grammar and athematic reasoning.

The Fibonacci series can be applied to alphabets, and the same should be printed.

Q1. Fibonancci series to print the alphabets?
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Q2. Print the numbers in descending order 123456?
Ans. 
Print numbers in descending order 123456
• Create an array of strings containing the numbers 1 to 6

• Sort the array in descending order

• Print the sorted array
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Q1. Why are you choosing our organization?
Ans. 
I am choosing your organization because of its reputation for innovation, strong company culture, and opportunities for growth.
• Reputation for innovation in the industry

• Strong company culture that values employee development

• Opportunities for growth and advancement within the organization
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Q2. Are you open to relocation?
Ans. 
Yes, I am open to relocation for the right opportunity.
• I am willing to relocate for the right job opportunity that aligns with my career goals.

• I am open to exploring new locations and experiencing different cultures.

• I understand that relocation may be necessary for career advancement and personal growth.
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Q3. Are you comfortable with rotational shifts?
Ans. 
Yes, I am comfortable with rotational shifts as I have prior experience working in such shifts.
• I have previous experience working in rotational shifts at my previous job.

• I am adaptable and can easily adjust my schedule to accommodate rotational shifts.

• I understand the importance of being available during different shifts to ensure smooth operations.

• I am willing to work in rotational shifts to support the team and meet
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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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The questions were very relevant.

Q1. What are the computer languages you know?
Ans. 
I am proficient in languages like Python, Bash, and SQL.
• Python

• Bash

• SQL
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Q2. Write a code in Java?
Ans. 
A Java code snippet showcasing basic syntax and functionality.
• Declare a class with a main method

• Create variables and assign values

• Use control structures like if-else or loops

• Print output using System.out.println()
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Q1. Do you opt for relocation?
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Q2. Where do want to see yourself in next 5 years?
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Q1. How ls command works?
Ans. 
ls command is used to list files and directories in a directory.
• ls command stands for 'list'.

• It displays the names of files and directories in the current directory by default.

• Options can be used with ls command to customize the output, such as -l for long listing format or -a to show hidden files.

• Example: 'ls -l' will display files and directories in long listing format.
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Q2. How DNS works ?
Ans. 
DNS translates domain names to IP addresses to locate resources on the internet.
• DNS servers store records mapping domain names to IP addresses

• When a user enters a domain name, their device queries a DNS server to resolve it

• DNS uses a hierarchical system with top-level domains like .com or .org
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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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