NTT Data Network Engineer L1 Interview Questions and Answers

Q1. UST is good interviewer is not good
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Q2. Even we don't know the question atleast Interviewer required minimum patience .Iritating
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Q1. Basic question only OSPF
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Q2. Load balancer configuration
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Q1. OSPF, Load balancer
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Q2. Load balancing configuration
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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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Normal aptitude group discussion assignment case study

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
Ans. 
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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Q1. DHCP working principles
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DHCP assigns IP addresses to devices on a network automatically
• DHCP server assigns IP addresses to devices on the network

• DHCP clients request IP addresses from the DHCP server

• DHCP uses a lease mechanism to manage IP address assignments

• DHCP reduces the administrative burden of manually assigning IP addresses
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Q2. DNS working principles
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DNS is a system that translates domain names to IP addresses to locate resources on the internet.
• DNS resolves domain names to IP addresses

• DNS operates through a distributed database system

• DNS uses hierarchical structure with top-level domains like .com, .org, etc.

• DNS queries are resolved through recursive and iterative processes
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Q3. Scenario based question DHCP
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Q4. Spanning tree protocol
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Q1. What is network, ip address and range of the ip address
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A network is a group of interconnected devices that communicate with each other. An IP address is a unique identifier assigned to each device on a network.
• A network is a collection of devices such as computers, printers, and servers that are connected to each other.

• An IP address is a unique identifier assigned to each device on a network to enable communication between devices.

• The range of an IP address is determined b...read more
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Q2. What is Subnetting, host , configuration of network, what is Standar acl and extended acl. Rip ,eigrp ,bgp, ospf
Ans. 
Answering questions related to network administration including subnetting, host configuration, and routing protocols.
• Subnetting involves dividing a network into smaller subnetworks for better management and security.

• Host configuration refers to the setup and management of individual devices on a network.

• Standard and extended ACLs are used to control access to network resources based on IP addresses.

• Routing protocols l...read more
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Q3. Static NAT, PAT, VPN ,
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Q4. Hsrp, vlan's and trunking
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Q5. What is osi , what it's 7 layers
Ans. 
OSI stands for Open Systems Interconnection. It is a conceptual model that describes how data is transmitted over a network.
• OSI model has 7 layers, each with a specific function

• The layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application

• Each layer communicates with the layer above and below it

• The model helps ensure interoperability between different network devices and software

• Example...read more
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Q1. Self introduction and hobbies
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Q2. About my salary expectations
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Q1. Bgp ospf,stp,nexus
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Q2. Aws,azure,vxlan,vnet
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The interview was very good as they asked me my experiences(good & bad) from the day I am professional. How to handle the situations when a senior person makes a mistake. What are the ways of learning that you prefer.

Q1. Which tools have I worked for.
Ans. 
I have worked with a variety of tools as a Network Engineer.
• Cisco Packet Tracer

• Wireshark

• SolarWinds Network Performance Monitor

• Nmap

• GNS3

• Ping

• Traceroute
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Q2. Which technologies I've worked on.
Ans. 
I have worked on a variety of technologies as a Network Engineer.
• Cisco networking equipment

• Routing and switching protocols (e.g. OSPF, BGP)

• Firewalls and security appliances (e.g. Cisco ASA, Palo Alto)

• Network monitoring and management tools (e.g. SolarWinds, Wireshark)

• Virtualization technologies (e.g. VMware, Hyper-V)

• Load balancers (e.g. F5, Citrix NetScaler)

• Wireless networking (e.g. Cisco Meraki, Aruba)

• Network troubles
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Q3. Brief questions on all technologies and technical terms.
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Q1. No questions. Only HR discussions.
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