Bharti Airtel IT Engineer Interview Questions and Answers

Q1. Tell me about your self.
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Q2. What is RAN, VLAN, 4G,5G, incident management.
Ans. 
RAN stands for Radio Access Network, VLAN is Virtual Local Area Network, 4G and 5G are mobile network technologies, and incident management involves handling and resolving network issues.
• RAN (Radio Access Network) is a part of a mobile telecommunication system that connects individual devices to other parts of a network through radio connections.

• VLAN (Virtual Local Area Network) is a technology that allows multiple net...read more
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Q1. Tell me about BT, strength and weakness, small technical talk from my cv.
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Q2. Switch , router , modem questions.
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Q1. Routing protocols
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Q1. 2G, 3G, 4G, 5G Architecture
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Q1. Salary package, location, 24*7 shift
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Questions about networking and English

Q1. Questions about technical knowledge of network
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Q2. What is arp? What is HSRP? WHAT IS GLBP? WHAT IS NAT
Ans. 
ARP is a protocol used to map an IP address to a physical MAC address on a local network.
• ARP stands for Address Resolution Protocol.

• It operates at the Data Link Layer of the OSI model.

• ARP is used to resolve IP addresses to MAC addresses.

• It is essential for communication between devices on the same network.

• ARP requests are broadcasted to all devices on the network.

• Example: When a computer wants to send data to another d...read more
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Q1. Different n/w layers
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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
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Q1. Firewall works on what layers
Ans. 
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
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Aptitude test test used individual skill and activity. Individual success and ignoring

Q1. Be honest with your years of experience. All information you share will be verified at the time of joining.
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Second round is aptitude test

Q1. Tel me about your company and introduce yourself
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