Bharti Airtel ISP Network Engineer Interview Questions and Answers

Q1. Preferred location
Ans. 
I am open to any location that offers growth opportunities and a challenging work environment.
• Open to relocation for the right opportunity

• Prefer locations with strong networking infrastructure

• Interested in locations with tech hubs or opportunities for professional development
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Q2. What' isbm your CCTC?
Ans. 
My current CCTC is $80,000 per year.
• Current CCTC is $80,000 per year

• CCTC may include salary, bonuses, benefits, etc.

• Negotiable based on experience and qualifications
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Q1. Full form of BGP
Ans. 
Border Gateway Protocol
• BGP stands for Border Gateway Protocol

• It is a standardized exterior gateway protocol used to exchange routing information between different autonomous systems on the internet

• BGP helps in determining the best path for data to travel between networks

• It is commonly used by Internet Service Providers (ISPs) and large organizations to connect to multiple networks

• BGP operates on TCP port 179
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Q2. Router function
Ans. 
Routers are networking devices that forward data packets between computer networks.
• Routers operate at the network layer of the OSI model

• They use routing tables to determine the best path for data packets

• Routers can connect different types of networks, such as LANs and WANs
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Q1. What is Joining date
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Q2. What is your ECTC
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Expected CTC (Cost to Company) for the position
• ECTC stands for Expected Cost to Company

• It includes salary, bonuses, benefits, and any other compensation offered by the employer

• Candidates should provide their expected salary range based on their experience and skills
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Q1. Regarding subnetting
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Q1. Regarding all networking
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Q1. Personal details
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Q1. Ospf protocol and routing
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Q2. Osi layers and bgp
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Q1. Bgp protocol and switching
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Q2. Incident management
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Q1. Tell me about yourself
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I am a highly experienced Senior Network Engineer with a strong background in designing, implementing, and managing complex network infrastructures.
• Over 10 years of experience in network engineering

• Proficient in Cisco, Juniper, and Palo Alto technologies

• Skilled in network design, implementation, and troubleshooting

• Certified in CCNP and JNCIP

• Led successful network upgrade projects at previous companies
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Q2. Experience and expertice , certification
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Q1. What is ECI MUX and ECI Alarm ?
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Q2. What is SDH card and MUX ?
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Q1. What is IPRAN solution
Ans. 
IPRAN solution stands for Internet Protocol Radio Access Network, which is a network architecture that combines IP/MPLS and mobile technologies.
• IPRAN solution is used to provide high-speed internet access to mobile users.

• It helps in optimizing network resources and improving network performance.

• Examples of IPRAN solution providers include Cisco, Huawei, and Juniper Networks.
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Q2. What is the different types of L2VPN we have
Ans. 
Different types of L2VPN include Ethernet VPN (EVPN), Virtual Private LAN Service (VPLS), and Layer 2 Tunneling Protocol (L2TP).
• Ethernet VPN (EVPN) - Uses BGP as the control plane protocol for distributing MAC addresses across the network.

• Virtual Private LAN Service (VPLS) - Extends a LAN over the network, allowing multiple sites to appear as if they are on the same LAN segment.

• Layer 2 Tunneling Protocol (L2TP) - Creat...read more
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Q1. Volte call flow
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Q1. -tell us about yourself
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Q2. -what experience do u have as a network engineer
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Q3. What do you know about Huawei
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Q4. What is MPLS protocol and in what situations do we use it
Ans. 
MPLS (Multiprotocol Label Switching) is a protocol used in high-performance telecommunications networks to direct data packets along predefined paths.
• MPLS is used to improve network performance by efficiently routing data packets based on labels instead of IP addresses.

• It is commonly used in scenarios where quality of service (QoS) and traffic engineering are important, such as in large enterprise networks or service p...read more
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Q5. Explain the three different INTER_AS solutions their advantages and disadvantages
Ans. 
Three different INTER_AS solutions and their advantages and disadvantages
• Option 1: Option A - Advantages: Scalability, Disadvantages: Complexity

• Option 2: Option B - Advantages: Simplicity, Disadvantages: Limited scalability

• Option 3: Option C - Advantages: Flexibility, Disadvantages: Potential security risks
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It contains logical reasoning, quantitative aptitude, and technical questions

Q1. Technical questions based on networks
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Q1. Questions were based on wireless Communication
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