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Ericsson Associate Engineer Interview Questions and Answers

Updated 5 Feb 2024

Q1. how call transfers to a different operator

Ans.

Call transfers to a different operator involve redirecting the call from one operator to another.

  • Call transfer can be initiated by the caller or the current operator.

  • The caller can request a transfer by providing the desired operator's extension or department.

  • The current operator can transfer the call by using a transfer button or dialing the desired operator's extension.

  • During the transfer, the caller may be put on hold or hear a transfer announcement.

  • Once the call is transf...read more

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Q2. what is the use of VI editor & how

Ans.

VI editor is a text editor used in Unix-like operating systems for editing files.

  • VI editor is used for creating, editing, and viewing text files.

  • It is a command-line based editor with different modes like command mode, insert mode, and visual mode.

  • Commands are used to navigate, search, replace, and perform other editing tasks.

  • For example, to open a file in VI editor, you would type 'vi filename' in the terminal.

  • To save changes and exit, you would switch to command mode by pre...read more

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Q3. Antennas, Types, and working

Ans.

Antennas are devices used to transmit and receive electromagnetic waves. They come in various types and have different working principles.

  • Antennas are used in various applications such as radio and television broadcasting, wireless communication, radar systems, and satellite communication.

  • Types of antennas include dipole antennas, loop antennas, patch antennas, parabolic antennas, and Yagi-Uda antennas.

  • Antennas work by converting electrical signals into electromagnetic waves ...read more

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Q4. 5G Architecture and it's functions

Ans.

5G architecture is a network design that allows for faster data speeds, lower latency, and increased capacity.

  • 5G architecture includes three main components: user equipment (UE), radio access network (RAN), and core network.

  • UE connects to the RAN through wireless links, which then connects to the core network.

  • The core network manages the flow of data between the UE and external networks, such as the internet.

  • 5G architecture also includes network slicing, which allows for the ...read more

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Q5. need of 5G

Ans.

5G is needed to support the increasing demand for high-speed, low-latency connectivity and enable the development of advanced technologies.

  • Faster data speeds: 5G offers significantly faster download and upload speeds compared to previous generations of wireless technology.

  • Low latency: 5G reduces the delay between sending and receiving data, enabling real-time communication and supporting applications like autonomous vehicles and remote surgery.

  • Increased capacity: With more de...read more

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Q6. Explain linux File in brief

Ans.

Linux File is a data structure used to store information on a computer system.

  • Linux files are organized in a hierarchical structure starting from the root directory (/)

  • Each file is identified by a unique name within its directory

  • Files can be of different types such as regular files, directories, symbolic links, etc.

  • Permissions are set for each file to control access by users and groups

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Q7. Architecture of 2G, 3G, 4G

Ans.

2G is based on GSM technology, 3G on UMTS/WCDMA, and 4G on LTE technology.

  • 2G (Second Generation) uses GSM technology for digital cellular networks.

  • 3G (Third Generation) uses UMTS/WCDMA technology for faster data transmission.

  • 4G (Fourth Generation) uses LTE technology for even faster data speeds.

  • Each generation offers improvements in speed, capacity, and efficiency.

  • 5G is the latest generation, offering even faster speeds and lower latency.

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Q8. Call flow of 4G

Ans.

4G call flow involves multiple steps like network registration, authentication, connection setup, data transfer, and release.

  • User equipment (UE) connects to the base station (eNodeB)

  • UE sends a connection request to the eNodeB

  • eNodeB forwards the request to the Mobility Management Entity (MME)

  • MME authenticates the UE and assigns it an IP address

  • Data transfer occurs between the UE and the eNodeB

  • Upon completion, the connection is released

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Interview Process at Ericsson Associate Engineer

based on 4 interviews
2 Interview rounds
Resume Shortlist Round
Technical Round
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