TCS Linux System Engineer Interview Questions and Answers

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. Long thry will go in detail
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Q2. Tell me abt urself
Ans. 
I am a dedicated and experienced System Engineer with a strong background in network infrastructure and troubleshooting.
• Over 5 years of experience in designing, implementing, and maintaining network systems

• Proficient in troubleshooting hardware and software issues

• Skilled in network security protocols and best practices

• Certified in Cisco CCNA and CompTIA Network+

• Strong communication and problem-solving skills
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Q3. What is STAR process
Ans. 
STAR process is a structured method used in interviews to answer behavioral questions by outlining the Situation, Task, Action, and Result.
• Situation - Describe the context or background of the situation

• Task - Explain the specific task or goal that needed to be accomplished

• Action - Detail the actions taken to address the task

• Result - Summarize the outcome or impact of the actions taken

• Example: 'Can you give me an exampl...read more
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Q1. Tech round of interview
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Q1. Technical rpund of interview
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Q1. General abou project details
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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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Q1. Boot process of linux, crontab shell script
Ans. 
The boot process of Linux involves several stages, including BIOS, bootloader, kernel initialization, and system initialization.
• The boot process starts with the BIOS (Basic Input/Output System) initializing hardware and performing a Power-On Self-Test (POST).

• The bootloader, such as GRUB or LILO, is then loaded to locate and load the Linux kernel.

• The kernel initializes essential components, sets up memory, and mounts th...read more
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Q1. Salary discussion
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Q1. What is oops concepts in Java
Ans. 
Oops concepts in Java refer to Object-Oriented Programming principles like Inheritance, Encapsulation, Polymorphism, and Abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability of a method to do different things based on the object it is acting upon.

• Abstraction: Hiding the imp...read more
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Q2. What is a collections in java
Ans. 
Collections in Java refer to classes and interfaces that implement data structures like lists, sets, and maps.
• Collections provide a way to store and manipulate groups of objects in Java

• Examples include ArrayList, LinkedList, HashSet, and HashMap

• Collections framework includes interfaces like List, Set, Map, and classes like ArrayList, HashSet, and HashMap
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Q3. What is list and set in java
Ans. 
List and Set are both interfaces in Java used to store collections of elements, but with different characteristics.
• List is an ordered collection that allows duplicate elements, while Set is an unordered collection that does not allow duplicates.

• List implementations include ArrayList, LinkedList, and Vector, while Set implementations include HashSet, TreeSet, and LinkedHashSet.

• List allows access to elements by index, wh...read more
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Q4. Write. Program of palindrome program
Ans. 
A palindrome program checks if a given string reads the same forwards and backwards.
• Create a function that takes a string as input

• Remove any spaces and convert all characters to lowercase

• Compare the string with its reverse to check if it is a palindrome
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Q5. Write a program of prime numbers
Ans. 
Program to generate prime numbers
• Create a function to check if a number is prime

• Iterate through numbers and check for prime numbers

• Store prime numbers in an array
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Q6. What is inheritance and what is class and object
Ans. 
Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class. A class is a blueprint for creating objects, while an object is an instance of a class.
• Inheritance allows a class to reuse code from another class, promoting code reusability and reducing redundancy.

• A class is a template or blueprint for creating objects, defining attributes and methods.

• An object...read more
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Coding round test in tech Mahindra

Q1. File system user Management
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Q2. LVM NFS server FTP server SSH log server file system user Management DNS server troubleshooting network management
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Q3. LVM FTP server DNS server
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Q4. Samba server Web Apche server Managing Selinux Job Automation
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Learn some coding language like python and Java
And SAP ABAP

Q1. What is the use of static word in java
Ans. 
Static keyword in Java is used to create class-level variables and methods.
• Static variables and methods belong to the class rather than the instance of the class.

• Static variables are initialized only once at the start of the program.

• Static methods can be called without creating an instance of the class.

• Static keyword can also be used to create static blocks that are executed only once when the class is loaded.

• Example: ...read more
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Q2. Can we implement multiple interfaces in a single Java class?
Ans. 
Yes, Java supports multiple interface implementation in a single class.
• A class can implement multiple interfaces separated by a comma.

• All the methods of the implemented interfaces must be implemented in the class.

• Example: public class MyClass implements Interface1, Interface2 { }
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Q3. What is the “Diamond problem” in Java?
Ans. 
Diamond problem is a multiple inheritance issue in Java where two classes have a common parent class and a subclass inherits from both.
• Occurs when two classes have a common parent class and a subclass inherits from both

• Results in ambiguity and conflicts in method and variable resolution

• Solved in Java by implementing interfaces instead of multiple inheritance
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