Bharti Airtel RF Planning & Optimization Engineer Interview Questions and Answers

Different network layers include physical, data link, network, transport, session, presentation, and application layers.

• Physical layer: responsible for transmitting raw bits over a communication channel

• Data link layer: responsible for error-free transfer of data between nodes on a network

• Network layer: responsible for routing data packets between networks

• Transport layer: responsible for reliable data transfer between a...read more

Firewall works on multiple layers of OSI model

• Firewall operates on layers 3 (network layer) and 4 (transport layer) of the OSI model

• It can filter traffic based on IP addresses, ports, protocols, and other criteria

• Firewalls can also perform deep packet inspection to detect and block malicious traffic

• Examples of firewall software include Cisco ASA, pfSense, and Windows Firewall

To improve CQI, optimize signal quality and reduce interference.

• Optimize antenna tilt and azimuth to improve signal quality.

• Implement interference mitigation techniques such as frequency hopping or power control.

• Ensure proper handover parameters to maintain a stable connection.

• Use advanced modulation schemes to increase data throughput.

• Perform regular drive tests and network audits to identify and resolve issues.

• Upgrad...read more

Handover and drop call issues can be solved by optimizing network parameters, improving coverage and capacity, and troubleshooting hardware and software problems.

• Optimize handover parameters such as handover margin, time-to-trigger, and hysteresis

• Improve coverage by adding more base stations or adjusting antenna tilt and azimuth

• Increase capacity by adding more carriers or sectors

• Troubleshoot hardware issues like faulty...read more

The relation between inter and intra cell term point and anchor baseline is important in RF optimization.

• Inter cell term point refers to the point where the signal from one cell ends and the signal from another cell begins.

• Intra cell term point refers to the point within a cell where the signal quality starts to degrade.

• Anchor baseline is a reference point used to measure the performance of a network.

• The relation betwe...read more

To improve CQI, optimize signal quality and reduce interference.

• Optimize antenna tilt and azimuth to improve signal quality.

• Implement interference mitigation techniques such as frequency hopping or power control.

• Ensure proper handover parameters to maintain a stable connection.

• Use advanced modulation schemes to increase data throughput.

• Perform regular drive tests and network audits to identify and resolve issues.

• Upgrad...read more