TCS System Engineer Interview Questions and Answers for Freshers

Aptitude contains general arithmetic aptitude, logical questions, english

2 codes, easy and medium questions

Q1. What is cloud computing and explain?
Ans. 
Cloud computing is the delivery of computing services over the internet, allowing users to access and store data and applications remotely.
• Cloud computing allows users to access data and applications from any device with an internet connection.

• It eliminates the need for physical hardware and on-site data centers.

• Examples of cloud computing services include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Pl...read more
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Q2. What is abstraction in Java?
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Q3. Print dictionary in python?
Ans. 
Use Python's print function to display a dictionary.
• Use the print function with the dictionary as the argument.

• The dictionary will be displayed in key-value pairs.

• You can also use a loop to print each key-value pair individually.
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Q4. Difference between heap and stack memory?
Ans. 
Heap memory is used for dynamic memory allocation, while stack memory is used for static memory allocation.
• Heap memory is allocated at runtime and can be accessed randomly, while stack memory is allocated at compile time and is accessed in a LIFO manner.

• Heap memory is managed by the programmer, while stack memory is managed by the compiler.

• Heap memory is typically used for storing objects and data structures, while sta...read more
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Q5. Exception handling in Java?
Ans. 
Exception handling in Java is a mechanism to handle runtime errors and prevent program crashes.
• Use try-catch blocks to handle exceptions

• Use finally block to execute code regardless of exception

• Use throw keyword to manually throw exceptions

• Use throws keyword in method signature to declare exceptions that can be thrown
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Q6. Python data types?
Ans. 
Python has various built-in data types including integers, floats, strings, lists, tuples, sets, and dictionaries.
• Integers: Whole numbers, e.g., x = 5.

• Floats: Decimal numbers, e.g., y = 3.14.

• Strings: Text data, e.g., name = 'Alice'.

• Lists: Ordered, mutable collections, e.g., numbers = [1, 2, 3].

• Tuples: Ordered, immutable collections, e.g., coords = (10, 20).

• Sets: Unordered collections of unique elements, e.g., unique_nu...read more
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Q7. Explain project? what are difficulties you faced in this project?
Ans. 
I worked on a project to implement a new network infrastructure for a large company.
• Designed network architecture to support increased data traffic

• Implemented new hardware and software solutions

• Tested and optimized network performance

• Collaborated with cross-functional teams to ensure project success
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Q1. Tell About company
Ans. 
Our company is a leading technology firm specializing in providing innovative solutions for businesses.
• Founded in 2005

• Headquartered in Silicon Valley

• Specializes in cloud computing and cybersecurity

• Clients include Fortune 500 companies

• Award-winning products and services
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Q2. Strength and weakness
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Questions on logical aptitude and reasoning

Q1. Questions was based on DBMS, oops, sql
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Q1. How many types of Xpath in selenium?
Ans. 
XPath in Selenium is a powerful way to navigate through elements and attributes in an XML document.
• 1. Absolute XPath: Starts from the root node. Example: '/html/body/div'.

• 2. Relative XPath: Starts from the current node. Example: '//div[@class='example']'.

• 3. XPath with Attributes: Uses attributes to find elements. Example: '//input[@id='username']'.

• 4. XPath with Functions: Uses functions like 'contains()'. Example: '//a...read more
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Q2. Tell me about testng annotations?
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TestNG annotations are used to define test methods, configuration, and execution flow in Java testing frameworks.
• @BeforeSuite: Runs once before all tests in the suite. Example: @BeforeSuite public void setupSuite() {}

• @Test: Marks a method as a test method. Example: @Test public void testMethod() {}

• @AfterMethod: Runs after each test method. Example: @AfterMethod public void tearDown() {}

• @BeforeClass: Runs once before th...read more
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Q1. Introduction, Coding questions, fundaments, programing concepts.
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Q2. Project related questions from my resume.
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Q1. Introduction, Cloud, networking, cybersecurity, Operating Systems.
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Q2. General questions related to company and me.
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Q1. Introduction, key values of the company.
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Q2. Hobbies, strength, weakness, question related to NGO(mentioned in my resume), about my colleges(as I spent 5 years BCA+MCA).
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