10+ BT E Serv Interview Questions and Answers

Active DAS uses signal boosters to amplify and distribute wireless signals, while Passive DAS uses passive components like cables and antennas.

• Active DAS requires power to operate, while Passive DAS does not.

• Active DAS can cover larger areas and support more users, while Passive DAS is better suited for smaller areas.

• Active DAS is more expensive to install and maintain than Passive DAS.

• Examples of Active DAS include WilsonPro 1050 and SureCall Fusion5s, while examples of Pass...read more

BTS and BSS are components of a cellular network. BTS is responsible for transmitting and receiving signals while BSS manages the radio resources.

• BTS stands for Base Transceiver Station and is responsible for transmitting and receiving signals to and from mobile devices.

• BSS stands for Base Station Subsystem and manages the radio resources, including frequency allocation and handover between cells.

• RF antenna is used to transmit and receive radio signals between the BTS and mob...read more

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 messages.

• 3G uses packet-switched technology and provides 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 (Voice over LTE) and carrier aggregation.

• Each generation of technology has its own set of...read more

eNodeB is a base station in LTE network responsible for radio communication with UE.

• eNodeB stands for evolved Node B

• It is responsible for radio resource management and control of UE

• It communicates with MME for mobility management and with SGW for user data forwarding

• It supports multiple antennas for MIMO transmission

• It can be connected to other eNodeBs to form a cluster for better coverage and capacity

• It uses S1 interface to communicate with MME and X2 interface to communicat...read more

Call flow refers to the sequence of events that occur during a phone call or communication session.

• Call is initiated by the caller

• Call is routed through the network to the recipient

• Recipient answers the call

• Conversation takes place

• Call is terminated by either party

HR policies guide the process of hiring and candidate search.

• HR policies outline the recruitment process, including job posting, screening, interviewing, and selection.

• They also define the criteria for candidate evaluation and selection, such as qualifications, skills, and experience.

• HR policies may include guidelines for sourcing candidates through job boards, social media, employee referrals, and recruitment agencies.

• They also address diversity and inclusion initiatives to ...read more

Managing a project involves planning, organizing, executing, and monitoring tasks to achieve specific goals within a set timeframe.

• Define project scope, objectives, and deliverables

• Create a project plan with timelines and milestones

• Assign tasks and responsibilities to team members

• Monitor progress and adjust plans as needed

• Communicate with stakeholders and team members regularly

• Evaluate project outcomes and identify areas for improvement

A perfect IC is made through careful design, simulation, layout, and verification.

• Design the circuit to meet specifications

• Simulate the circuit to ensure functionality and performance

• Layout the circuit to minimize noise and interference

• Verify the circuit through testing and analysis

• Iterate on the design to optimize for performance and manufacturability

AI is the simulation of human intelligence processes by machines, especially computer systems.

• AI involves machines performing tasks that typically require human intelligence, such as visual perception, speech recognition, decision-making, and language translation.

• Examples of AI include virtual assistants like Siri and Alexa, self-driving cars, recommendation systems like Netflix's algorithm, and facial recognition technology.

• AI can be categorized into narrow AI (focused on a ...read more

ReactJs is a JavaScript library for building user interfaces.

• ReactJs is developed and maintained by Facebook.

• It allows developers to create reusable UI components.

• ReactJs uses a virtual DOM for better performance.

• It follows a component-based architecture.

• ReactJs can be used for building single-page applications.