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TCS Interview Questions and Answers

Updated 22 Oct 2024

Q1. which is connection oriented udp or tcp

Ans.

TCP is connection-oriented, while UDP is connectionless.

  • TCP establishes a connection before sending data, ensuring reliable delivery.

  • UDP does not establish a connection and does not guarantee delivery.

  • TCP is used for applications like web browsing, email, and file transfer.

  • UDP is used for real-time applications like video streaming and online gaming.

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Q2. what are the main four pillars of oops

Ans.

Encapsulation, Inheritance, Polymorphism, Abstraction

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

  • Inheritance: Ability of a class to inherit properties and behavior from another class

  • Polymorphism: Ability to present the same interface for different data types

  • Abstraction: Hiding the complex implementation details and showing only the necessary features

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Q3. what is meant by https and ftp

Ans.

HTTPS is a secure protocol for transferring data over the internet, while FTP is a protocol for transferring files between a client and a server.

  • HTTPS stands for Hypertext Transfer Protocol Secure

  • It encrypts data to ensure secure communication between a client and a server

  • Commonly used for secure online transactions, such as online banking or shopping

  • FTP stands for File Transfer Protocol

  • It allows for the transfer of files between a client and a server

  • Often used for uploading ...read more

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Q4. what do you know about os

Ans.

Operating System (OS) is a software that manages computer hardware and provides services for computer programs.

  • OS controls hardware resources like memory, CPU, and storage.

  • It provides a user interface for interacting with the computer.

  • Examples of OS include Windows, macOS, and Linux.

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Q5. how to measure rating of resistance from colour code?

Ans.

Resistance rating can be measured from colour code by identifying the colour bands and their corresponding values.

  • Identify the colour bands on the resistor, typically there are 4 or 5 bands.

  • Refer to a resistor colour code chart to determine the value of each colour band.

  • The first two bands represent the first two digits of the resistance value, the third band represents the multiplier, and the fourth band represents the tolerance.

  • For example, a resistor with colour bands of b...read more

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Q6. Explain specifications of any microcontroller you used?

Ans.

I have experience with the Arduino Uno microcontroller, which is based on the ATmega328P chip.

  • The Arduino Uno microcontroller is based on the ATmega328P chip

  • It has 14 digital input/output pins, 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, and a reset button

  • The ATmega328P chip has 32 KB of flash memory for storing code, 2 KB of SRAM, and 1 KB of EEPROM

  • It can be programmed using the Arduino IDE and supports various sensors and actuators for proj...read more

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