10+ TCS Interview Questions and Answers

Telecom technologies refer to the various technologies used in the telecommunications industry to transmit and receive information.

• Telephony: The technology of transmitting voice signals over long distances.

• Wireless Communication: The transmission of information without the use of physical connections.

• Internet Protocol (IP): The protocol used for transmitting data packets over the internet.

• Fiber Optics: The use of thin strands of glass or plastic to transmit data as pulses of...read more

4G architecture is a cellular network technology that uses packet switching to provide high-speed internet access.

• 4G stands for Fourth Generation and is the successor to 3G technology

• It uses Long Term Evolution (LTE) technology for faster data transfer rates

• The architecture consists of Radio Access Network (RAN), Evolved Packet Core (EPC), and User Equipment (UE)

• RAN includes base stations and antennas that communicate with UE

• EPC manages the flow of data between UE and the int...read more

LTE is a wireless communication standard for high-speed data transfer, while VoLTE is a technology that enables voice calls over LTE networks.

• LTE stands for Long-Term Evolution and is a 4G wireless communication standard for high-speed data transfer.

• VoLTE stands for Voice over LTE and is a technology that enables voice calls over LTE networks.

• LTE is primarily used for data transfer, while VoLTE is used for voice calls.

• VoLTE provides better call quality and faster call setup t...read more

FDD and TDD are two different duplexing techniques used in wireless communication.

• FDD stands for Frequency Division Duplexing and TDD stands for Time Division Duplexing.

• In FDD, separate frequency bands are used for transmitting and receiving data, while in TDD, the same frequency band is used for both.

• FDD is commonly used in technologies like LTE, while TDD is used in WiMAX and some LTE networks.

• FDD provides better quality of service and higher data rates, while TDD is more f...read more

4G communication channels include LTE, WiMAX, and HSPA+.

• LTE (Long-Term Evolution) is the most widely used 4G technology.

• WiMAX (Worldwide Interoperability for Microwave Access) is another 4G technology.

• HSPA+ (Evolved High-Speed Packet Access) is a 4G technology used by some carriers.

• 4G communication channels provide faster data transfer rates and improved network capacity compared to 3G.

• 4G networks also support more simultaneous connections and better voice quality.

To find the issue from UE, analyze logs, perform debugging, use testing tools, and collaborate with developers.

• Analyze logs for error messages or warnings

• Perform debugging to trace the issue in the code

• Use testing tools like Selenium or JUnit to automate tests

• Collaborate with developers to understand the issue and find a solution

I have experience in testing 4G and 5G networks.

• I have tested 4G and 5G networks for functionality, performance, and interoperability.

• I have used tools such as Wireshark, JMeter, and LoadRunner for testing.

• I have also tested various features such as VoLTE, VoWiFi, and video calling.

• I have worked with different network elements such as eNodeB, MME, SGW, and PGW.

• I have experience in both manual and automated testing of 4G and 5G networks.

I am expecting a salary in line with industry standards and commensurate with my experience.

• My expected salary is based on my experience, skills, and the job responsibilities.

• I am open to negotiation and willing to discuss the salary package.

• I am looking for a fair and competitive salary package.

• I am expecting a salary that reflects my value to the company.

• I am aware of the industry standards and salary ranges for this position.

• I am not just looking for a high salary, but als...read more

Modulation is the process of varying a carrier signal to transmit information.

• Modulation types include amplitude modulation (AM), frequency modulation (FM), and phase modulation (PM)

• AM varies the amplitude of the carrier signal to transmit information

• FM varies the frequency of the carrier signal to transmit information

• PM varies the phase of the carrier signal to transmit information

• Modulation is used in various communication systems such as radio, television, and mobile netwo...read more

The issue in 'ue' could be a typo or a missing character in a word.

• Check for typos in the word containing 'ue'

• Look for missing characters in the word with 'ue'