AT&T 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. OSI model, netwroking concepts
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Q1. Why do you want to work at ericsson
Ans. 
I want to work at Ericsson because of their innovative technology solutions and global impact in the telecommunications industry.
• Ericsson is a leader in the telecommunications industry, providing cutting-edge technology solutions.

• I am impressed by Ericsson's global presence and impact, working with clients all over the world.

• I am excited about the opportunity to contribute to Ericsson's innovative projects and work wit
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Q2. What do you think about repetitive tasks
Ans. 
Repetitive tasks can be monotonous but also provide an opportunity for efficiency and improvement.
• Repetitive tasks can lead to boredom and decreased motivation.

• However, they also offer a chance to streamline processes and identify areas for improvement.

• For example, data entry may be repetitive but can highlight errors in the system that need to be addressed.

• Creating templates or checklists can help make repetitive task...read more
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Q1. What is modulation
Ans. 
Modulation is the process of varying a carrier signal's properties to encode information.
• Modulation is used in telecommunications to transmit information over long distances.

• There are different types of modulation such as amplitude modulation (AM), frequency modulation (FM), and phase modulation (PM).

• In AM, the amplitude of the carrier signal is varied in proportion to the waveform being transmitted.

• In FM, the frequenc...read more
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Q2. Types of modulation
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Modulation is the process of varying a carrier signal's properties to transmit information.
• Types of modulation include amplitude modulation (AM), frequency modulation (FM), and phase modulation (PM)

• AM involves varying the amplitude of the carrier signal to encode information

• FM involves varying the frequency of the carrier signal

• PM involves varying the phase of the carrier signal

• Other types of modulation include quadrat...read more
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Q1. Are you willing to relocate
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Q2. Salrary negotiations
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3 rounds starts with Technical and then group discussion and final round was about HR.

Online coding round with choice of your language.

Q1. Positives and negatives
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Q2. About relocations to different places.
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