NTT Data Senior Network Engineer Interview Questions and Answers

Q1. Experiance working
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Q2. Working projects
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Q1. Explain BGP attributes and path selection process
Ans. 
BGP attributes are used to determine the best path for routing. Path selection process involves comparing attributes like AS path, local preference, etc.
• BGP attributes include AS path, local preference, MED, origin, etc.

• Path selection process involves comparing attributes in a predetermined order to determine the best path.

• AS path attribute is used to prevent routing loops and determine the shortest path to a destinati...read more
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Q2. Asked question related to HSRP, STP, vlan, IPSec
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Q3. Did you worked on any firewall
Ans. 
Yes, I have worked on configuring and managing firewalls in various network environments.
• Configured firewall rules to control traffic flow

• Managed firewall policies to ensure network security

• Troubleshooted firewall issues and implemented solutions

• Worked with different firewall vendors such as Cisco, Palo Alto, and Fortinet
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Q4. What need to be check if ospf neighborship is not forming
Ans. 
Check OSPF configuration, network connectivity, router IDs, subnet mismatches, authentication, and hello/dead timers.
• Verify OSPF configuration on both routers

• Check network connectivity between routers

• Ensure router IDs are unique

• Check for subnet mismatches

• Verify authentication settings

• Check hello and dead timers
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Q5. Explain SIA in eigrp
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SIA (Stuck In Active) is a mechanism in EIGRP to prevent routing loops by marking a route as 'stuck' if a feasible successor is not found.
• SIA occurs when a router is unable to find a feasible successor for a route during a topology change.

• During SIA, the router marks the route as 'stuck' and queries its neighbors for a new path.

• This prevents routing loops by temporarily blocking the affected route until a new feasible
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Q1. BGP and ospf and vlan
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Q2. VSS and stacking switch
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Q1. BGP in depth ospf and vlan
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Q2. Vss and switch stacking switch routing
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Q1. What is DNS please explain
Ans. 
DNS stands for Domain Name System, which translates domain names to IP addresses.
• DNS is like a phone book for the internet, translating human-readable domain names (like google.com) to IP addresses (like 172.217.3.206).

• It helps users access websites by typing in easy-to-remember domain names instead of complex IP addresses.

• DNS servers store records of domain names and their corresponding IP addresses, allowing for effi...read more
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Q2. What is DHCP please explain
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DHCP stands for Dynamic Host Configuration Protocol, used to automatically assign IP addresses to devices on a network.
• DHCP eliminates the need for manual IP address configuration on each device

• It assigns IP addresses dynamically, allowing for efficient use of available addresses

• DHCP servers lease IP addresses to devices for a specific period of time

• DHCP also provides other network configuration information, such as su...read more
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Coding test assignment one on one round

Q1. Technical vs no tech
Ans. 
Technical skills are essential for a Network Engineer, but soft skills are also important for effective communication and teamwork.
• Technical skills are necessary for configuring and troubleshooting network devices.

• Soft skills like communication, teamwork, and problem-solving are crucial for working effectively with colleagues and clients.

• Balancing technical expertise with interpersonal skills is key to success in the r...read more
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Q2. Dhcp vs dns gdp vs rdp frp vs 30nd
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DHCP is a protocol used to assign IP addresses dynamically to devices on a network, while DNS is a system that translates domain names to IP addresses.
• DHCP assigns IP addresses to devices on a network dynamically

• DNS translates domain names to IP addresses

• RDP (Remote Desktop Protocol) allows users to remotely connect to a computer

• FRP (Fiberglass Reinforced Plastic) is a material used in construction

• 30nd does not seem to
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