Tata Teleservices Intern Interview Questions and Answers

Q1. Interview was easy. about Networking related questions
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Q2. OSI layers model
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Q1. What is DNS and explain
Ans. 
DNS stands for Domain Name System, which translates domain names to IP addresses.
• DNS is like a phone book for the internet, translating human-readable domain names (like google.com) to IP addresses (like 172.217.3.206).

• It helps users access websites by typing in easy-to-remember domain names instead of complex IP addresses.

• DNS servers store records of domain names and their corresponding IP addresses, allowing for effi...read more
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Q2. What is the difference between wifi and Bluetooth
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Wifi is used for high-speed internet access over a larger area, while Bluetooth is used for short-range communication between devices.
• Wifi is used for connecting devices to the internet wirelessly over a larger area

• Bluetooth is used for short-range communication between devices, typically within a range of 30 feet

• Wifi typically offers faster data transfer speeds compared to Bluetooth

• Wifi requires a network access point...read more
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Q1. How is this related to yiu
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Q2. Why you want to join this
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Q1. BASIC CCNA QUESTION AND REGARDING COMPANY
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Q2. TCP/IP SUBNETTING NETWORK AND SIMILAR THINGS
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Q1. OSI model, netwroking concepts
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Easy basics of telecommunication

Qsns related to 4G communication,LAN etc

Q1. Sampling theorem
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Sampling theorem states that a continuous signal can be perfectly reconstructed from its samples if the sampling rate is greater than twice the highest frequency component of the signal.
• The Nyquist-Shannon sampling theorem states that in order to accurately reconstruct a signal, the sampling rate must be at least twice the highest frequency component of the signal.

• If the sampling rate is too low, aliasing can occur, le...read more
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Q2. Favourite subject related questions
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Simple queations with some technical questions

Q1. Difference between digital and continuse signals
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Digital signals are discrete and represent information in binary form, while continuous signals are analog and represent information in a continuous manner.
• Digital signals have a finite set of possible values (0 or 1), while continuous signals can have an infinite number of values within a range.

• Digital signals are more immune to noise and distortion compared to continuous signals.

• Examples of digital signals include co...read more
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Q2. Types of antennas used
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Various types of antennas are used for different applications, including dipole, Yagi, patch, and parabolic antennas.
• Dipole antennas are simple and commonly used for radio and television broadcasting.

• Yagi antennas are directional and used for long-distance communication.

• Patch antennas are compact and used in wireless communication systems.

• Parabolic antennas are used for satellite communication and have high gain.
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