Coforge L2 Network Engineer Interview Questions and Answers

Q1. Tell me brief about yourself & what are the roles and responsibilities in day to day work profile? Questions from Nexus switch-- VPC? , steps to create vpc? Switch stacking? How does we can set MAC on ...read more
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Q1. What I carried from my current job and nexus switches questions.
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Q2. How I will achieve the IOS upgrade when only I have 10 minutes left in PE window??
Ans. 
Use pre-staged image and fast transfer methods to achieve IOS upgrade within 10 minutes.
• Pre-stage the image on the device before the upgrade window

• Use fast transfer methods like TFTP or FTP to transfer the image quickly

• Ensure all necessary configurations are saved and backed up before the upgrade

• Have a rollback plan in case of any issues during the upgrade
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Q3. Basic questions on my work and last can I do my job in night shifts?
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Q1. What is my expectations and why
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Q1. Ospf more deep knowledge
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Q2. Ospf scenario based question
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Q3. STP loop prevention how its working
Ans. 
STP loop prevention is achieved by blocking redundant paths in a network to prevent loops.
• STP (Spanning Tree Protocol) identifies redundant paths in a network

• STP selects a root bridge to be the central point of the network

• STP blocks certain ports to prevent loops while still allowing for redundancy

• If a link fails, STP will unblock a previously blocked port to maintain connectivity
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Q4. More info about Routing if you good any one routing just inform based on they will ask
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Q1. What do you know about routing?
Ans. 
Routing is the process of selecting the best path for network traffic to reach its destination.
• Routing involves determining the optimal path for data packets to travel from the source to the destination.

• Routers use routing tables to make decisions on how to forward packets based on destination IP addresses.

• There are different types of routing protocols such as RIP, OSPF, EIGRP, and BGP.

• Static routing involves manually ...read more
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Q2. What do you know about switching?
Ans. 
Switching is a networking technique used to forward data packets between devices on a computer network.
• Switching involves the process of receiving, analyzing, and forwarding data packets within a network.

• Switches operate at Layer 2 (Data Link Layer) of the OSI model.

• Switches use MAC addresses to determine the destination of data packets.

• Switches create separate collision domains and broadcast domains, improving network...read more
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Q1. Basic switching
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Q2. Basic routing
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Q1. DHCP working principles
Ans. 
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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Basic question like as time ditance

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Coding test contains 2 questions

Q1. 4g 5g volte kpi monitoring
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Q2. Hybrid technology
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