Ericsson Interview Questions, Process, and Tips

Q1. 5G call flow explanation
Ans. 
5G call flow explanation
• 5G device connects to 5G network

• Authentication and security checks are performed

• Data is transmitted through the network using advanced technologies like beamforming

• Quality of Service (QoS) parameters are maintained for optimal performance
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Q2. RRC layer 3gpp explanation
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RRC layer in 3GPP is responsible for radio resource management and control in mobile networks.
• RRC (Radio Resource Control) layer is part of the radio interface protocol stack in mobile networks.

• It is responsible for establishing and maintaining the radio link between the mobile device and the network.

• RRC handles functions such as connection establishment, handovers, and radio bearer control.

• It also manages the allocati...read more
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Q1. Work structure discussion
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Q2. Salary expectation
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Q1. Tell me something about you
Ans. 
I am a dedicated and experienced Program Manager with a proven track record of successfully leading and delivering projects.
• Over 5 years of experience in program management

• Strong leadership and communication skills

• Proven ability to deliver projects on time and within budget

• Experience working with cross-functional teams

• Certified in project management (e.g. PMP)

• Managed a portfolio of projects for a Fortune 500 company
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Q2. Give the example of the best project you handled. How you contributing in it? and What is the result you achieved ?
Ans. 
Managed a cross-functional project to implement a new CRM system, resulting in increased efficiency and customer satisfaction.
• Led a team of developers, analysts, and stakeholders to define project scope and requirements

• Developed and executed project plan, ensuring timely delivery and within budget

• Conducted regular status meetings and communicated progress to stakeholders

• Provided training and support to end users for su...read more
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Q1. Explain OSI model in brief ?
Ans. 
The OSI model is a conceptual model that describes the communication functions of a telecommunication or computing system.
• OSI stands for Open Systems Interconnection.

• It has 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has a specific function and communicates with the adjacent layers.

• The model helps in understanding how data is transmitted over a network.

• Example: W...read more
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Q2. Explain OSI model devices on each layer ?
Ans. 
OSI model devices are specific to each layer of the model, facilitating communication between devices.
• Layer 1 (Physical): hubs, repeaters, cables

• Layer 2 (Data Link): switches, bridges

• Layer 3 (Network): routers, layer 3 switches

• Layer 4 (Transport): gateways, firewalls

• Layer 5 (Session): not applicable

• Layer 6 (Presentation): encryption/decryption devices

• Layer 7 (Application): servers, workstations
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Q3. What is TCP/IP Model ?
Ans. 
TCP/IP model is a networking protocol that defines how data is transmitted over the internet.
• TCP/IP model has four layers: application, transport, internet, and network access.

• Each layer has its own set of protocols that work together to transmit data.

• TCP/IP model is used for communication between devices on the internet.

• Examples of protocols used in TCP/IP model include HTTP, FTP, TCP, and IP.
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Q1. What is the role of router's ?
Ans. 
Routers are networking devices that forward data packets between computer networks.
• Routers connect multiple networks together and determine the best path for data to travel.

• They use routing tables to make decisions about where to send data packets.

• Routers can also provide security by blocking unwanted traffic and filtering incoming data.

• Examples of routers include home routers, enterprise routers, and core routers used
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Q2. What is the role of switches ?
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Switches are networking devices that connect devices together and enable communication between them.
• Switches forward data packets between devices on a network

• They use MAC addresses to identify devices and determine where to send data

• Switches can improve network performance by reducing network congestion

• They can also enhance network security by isolating traffic between devices

• Examples of switches include Ethernet switc
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Q1. Advance tredns in telecom, telecom evolution, call flow and architecture depending upon the area
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Call flow, protocols, design, networking