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10+ TCS Technical Support Engineer Interview Questions and Answers

Updated 19 Aug 2024

Q1. How to check only the file (not folders or links) in Unix directory? Ans. find . - maxdepth 1 -type f . Here maxdepth option will restrict search only in current directory else it will check sub directories as...

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Ans.

To check only files (not folders or links) in Unix directory, use 'find . -maxdepth 1 -type f'

  • Use the 'find' command in Unix

  • Add the option '-maxdepth 1' to restrict search to current directory

  • Add the option '-type f' to search only for files

  • This will exclude folders and links from the search

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Q2. One simple coding question to find a number is prime or not.

Ans.

Check if a number is prime or not using a simple coding question.

  • Iterate from 2 to square root of the number and check if the number is divisible by any of the numbers in that range.

  • If the number is divisible by any number other than 1 and itself, then it is not prime.

  • Examples: 7 is prime (divisible by 1 and 7 only), 10 is not prime (divisible by 1, 2, 5, and 10).

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Q3. How to triage null pointer expectations in java

Ans.

To triage null pointer expectations in Java, check for null values before accessing objects or invoking methods.

  • Always perform null checks before accessing object properties or invoking methods to avoid NullPointerException.

  • Use conditional statements like if-else or ternary operators to handle null values appropriately.

  • Consider using Optional class introduced in Java 8 to handle null values more effectively.

  • Utilize logging and debugging tools to identify the root cause of nul...read more

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Q4. What are oops concepts

Ans.

Oops concepts refer to Object-Oriented Programming concepts that help in organizing and managing code efficiently.

  • 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 complex implementation details and showing only the necessary features to the us...read more

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Discover TCS interview dos and don'ts from real experiences

Q5. sort the list and take out 2nd minimum

Ans.

Sort the list of strings and remove the 2nd minimum element.

  • Sort the list of strings in ascending order.

  • Remove the 2nd element from the sorted list.

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Q6. Write a program in java

Ans.

A program in Java to print 'Hello, World!'

  • Create a class with a main method

  • Use System.out.println() to print the message

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Q7. define append and extend.

Ans.

Append adds a single element to the end of a list, while extend adds multiple elements to the end of a list.

  • Append adds a single element to the end of a list.

  • Extend adds multiple elements to the end of a list.

  • Example: list1 = [1, 2, 3], list2 = [4, 5], list1.append(4) will result in list1 = [1, 2, 3, 4], list1.extend(list2) will result in list1 = [1, 2, 3, 4, 5]

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Q8. What is osi , bgp

Ans.

OSI (Open Systems Interconnection) is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven abstraction layers. BGP (Border Gateway Protocol) is a standardized exterior gateway protocol designed to exchange routing and reachability information among autonomous systems (AS) on the Internet.

  • OSI is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven abstraction layers....read more

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Q9. Explain testing methodology

Ans.

Testing methodology is a systematic approach to testing software to ensure quality and reliability.

  • Testing methodology involves planning, designing, executing, and evaluating tests.

  • It includes defining test objectives, test cases, and test data.

  • Different types of testing methodologies include black box testing, white box testing, and regression testing.

  • Testing methodologies help identify defects and ensure that software meets requirements and functions correctly.

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Q10. Sql find 2nd highest salary

Ans.

Use SQL query with ORDER BY and LIMIT to find the 2nd highest salary.

  • Use SELECT statement with ORDER BY clause to sort salaries in descending order

  • Use LIMIT 1,1 to skip the highest salary and retrieve the 2nd highest salary

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Interview Process at TCS Technical Support Engineer

based on 17 interviews
1 Interview rounds
Aptitude Test Round
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