Ericsson
10+ US Tech Solutions Interview Questions and Answers
Q1. What is financial and cost control during project management?
Financial and cost control is the process of monitoring and managing project expenses to ensure they stay within budget.
Developing a detailed budget plan
Tracking expenses and comparing them to the budget plan
Identifying and addressing cost overruns
Negotiating with vendors to get the best prices
Implementing cost-saving measures
Regularly reporting on financial status to stakeholders
Q2. What is 2G , 3G, 4G call flow?
2G, 3G, and 4G call flow are the processes involved in establishing and maintaining a mobile phone call.
2G call flow involves circuit-switched technology and uses Time Division Multiple Access (TDMA) for voice transmission.
3G call flow uses packet-switched technology and supports both voice and data transmission.
4G call flow uses Long-Term Evolution (LTE) technology and provides high-speed data transmission.
All call flows involve processes such as authentication, registration...read more
Q3. Difference between ABIS over IP and ABIS over TDM?
ABIS over IP and ABIS over TDM are two different methods of transmitting biometric data.
ABIS over IP uses internet protocol to transmit biometric data while ABIS over TDM uses time-division multiplexing.
ABIS over IP is more flexible and scalable than ABIS over TDM.
ABIS over TDM is more reliable and secure than ABIS over IP.
ABIS over IP is suitable for remote locations while ABIS over TDM is suitable for local networks.
Examples of ABIS over IP include MorphoWave Compact and Cr...read more
Q4. Case studies of daily operational activities?
Daily operational activities case studies
Case study of optimizing production line for efficiency
Case study of implementing new safety protocols in a manufacturing plant
Case study of troubleshooting and resolving technical issues in a software development team
Case study of streamlining inventory management in a retail store
Case study of improving customer service processes in a call center
Q5. Basic architecture of 2G , 3G & 4G?
2G, 3G, and 4G are mobile network technologies with different architectures.
2G uses circuit-switched technology and is primarily used for voice calls and text messaging.
3G uses packet-switched technology and offers faster data transfer rates than 2G.
4G uses all-IP packet-switched technology and provides even faster data transfer rates than 3G.
4G also supports advanced features like VoLTE and carrier aggregation.
Each generation of technology builds upon the previous one, with ...read more
Q6. What is transport network?
Transport network refers to the infrastructure that enables the movement of people, goods, and information.
Transport network includes roads, railways, airports, seaports, and communication networks.
It plays a crucial role in the economy by facilitating trade and commerce.
Examples of transport networks include the interstate highway system in the US and the European railway network.
Transport network planning involves optimizing routes, modes of transportation, and infrastructu...read more
Q7. Difference between LTE & VOLTE?
LTE is a standard for wireless broadband communication while VoLTE is a technology that enables voice calls over LTE network.
LTE stands for Long-Term Evolution and is a standard for wireless broadband communication.
VoLTE stands for Voice over LTE and is a technology that enables voice calls over LTE network.
LTE is used for data transfer while VoLTE is used for voice calls.
VoLTE provides better call quality and faster call setup time compared to traditional voice calls.
VoLTE r...read more
Q8. What is project management?
Project management is the process of planning, organizing, and overseeing the execution of a project from start to finish.
It involves defining project goals and objectives
Creating a project plan and timeline
Assigning tasks and responsibilities to team members
Monitoring progress and making adjustments as needed
Ensuring that the project is completed on time, within budget, and meets the desired quality standards
Examples include building construction, software development, and e...read more
Q9. What is resource management?
Resource management is the process of planning, allocating, and optimizing resources to achieve organizational goals.
It involves identifying the resources needed for a project or task
Allocating those resources in an efficient manner
Monitoring and controlling resource usage to ensure optimal performance
Examples include managing personnel, finances, equipment, and time
Effective resource management can lead to increased productivity and cost savings
Q10. What is single RAN?
Single RAN is a network architecture that allows multiple wireless technologies to be supported on a single physical network.
Single RAN stands for Single Radio Access Network.
It enables multiple wireless technologies such as 2G, 3G, 4G, and 5G to be supported on a single physical network.
This reduces the need for multiple hardware and software components, resulting in cost savings and simplified network management.
Single RAN also allows for easier network upgrades and expansi...read more
Q11. What is VOLTE?
VOLTE stands for Voice over LTE. It is a technology that allows voice calls to be made over a 4G LTE network.
VOLTE uses IP packets to transmit voice calls over the LTE network
It provides better call quality and faster call setup times compared to traditional 2G/3G networks
VOLTE also allows for simultaneous voice and data usage on the same network
Examples of VOLTE-enabled devices include iPhone 6 and above, Samsung Galaxy S6 and above, and Google Pixel
VOLTE requires both the d...read more
Q12. Srvcc call flow and what is srvcc
SRVCC (Single Radio Voice Call Continuity) is a feature that allows seamless handover of voice calls from LTE to 3G or 2G networks.
SRVCC is used to ensure that voice calls are not dropped during handover from LTE to 3G or 2G networks
It involves transferring the call from the LTE network to the circuit-switched 3G or 2G network
The handover is initiated by the network and is transparent to the user
SRVCC is important for providing uninterrupted voice services to users as LTE net...read more
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