TCS Support Engineer Interview Questions and Answers

Q1. TECHNICAL ASPECTS OF SQL
Ans. 
SQL is a programming language used for managing and manipulating databases.
• SQL stands for Structured Query Language

• It is used to retrieve and manipulate data in relational databases

• Common SQL commands include SELECT, INSERT, UPDATE, DELETE

• SQL can be used to create tables, indexes, and views in databases
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Q2. UNIX AND LOG MONITORING
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Need to study Reasoning,aptitude , Grammar

Q1. Even and odd program from C
Ans. 
A program to check if a given number is even or odd in C language.
• Use the modulus operator to check if the number is divisible by 2 or not.

• If the remainder is 0, then the number is even, otherwise it is odd.

• Print the result accordingly using if-else statements.
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Q2. Palindrome in number program from c
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A program in C to check if a given number is a palindrome or not.
• Take input number from user

• Reverse the number

• Compare the reversed number with the original number

• If both are same, then the number is a palindrome

• If not, then the number is not a palindrome
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Q1. Family background and self intro
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Q2. Why you choose TCS? What is your extra curricular activities?
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Q1. What is Lightning Web Components (LWC), and what is the lifecycle of LWC components?
Ans. 
Lightning Web Components (LWC) is a modern framework for building web applications on the Salesforce platform.
• LWC is built on web standards like HTML, CSS, and JavaScript.

• It promotes a component-based architecture for better reusability.

• Lifecycle hooks include: connectedCallback, renderedCallback, and disconnectedCallback.

• Example of connectedCallback: Used to fetch data when the component is inserted into the DOM.

• Examp...read more
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Q2. Batch apex we can write batch apex for future method
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Batch Apex cannot directly call future methods due to execution context limitations.
• Batch Apex is designed for processing large volumes of records asynchronously.

• Future methods are used for executing processes asynchronously but have limitations on context.

• Batch Apex can call Queueable Apex, which is more flexible than future methods.

• Example: Use Batch Apex to process records and Queueable Apex for additional asynchron...read more
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Logic and reasoning with general questions like Bank exam.

They will ask about your resume and coding knowledge it can be done by using either python or any other coding language you knew