Wipro L2 Network Engineer Interview Questions and Answers

A switch is a networking device that operates at Layer 2 of the OSI model, handling data at the data link layer.

• Switches forward data based on MAC addresses

• Operate at Layer 2 of the OSI model

• Used to create LANs and connect devices within a network

• Helps reduce network congestion by only sending data to the intended recipient

In the OSI model, each layer has specific functions and responsibilities in the communication process.

• The OSI model consists of 7 layers, each with its own specific functions and responsibilities.

• Each layer communicates with the adjacent layers to ensure data is properly transmitted.

• For example, in the OSI model, Layer 1 (Physical layer) deals with the physical connection between devices, while Layer 2 (Data Link layer...read more

Routers operate at Layer 3 of the OSI model and make decisions based on IP addresses, while switches operate at Layer 2 and make decisions based on MAC addresses.

• Routers operate at Layer 3 of the OSI model, while switches operate at Layer 2.

• Routers make decisions based on IP addresses, while switches make decisions based on MAC addresses.

• Routers connect different networks together, while switches connect devices within...read more

VLANs segment networks for improved performance and security by creating virtual networks within a physical network.

• VLAN stands for Virtual Local Area Network, allowing logical segmentation of networks.

• Each VLAN is identified by a unique VLAN ID (1-4095), enabling traffic separation.

• Devices in the same VLAN can communicate directly, while devices in different VLANs require a router.

• Example: VLAN 10 for HR, VLAN 20 for ...read more

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) into IP addresses (like 172.217.3.206).

• It helps users access websites by translating domain names into IP addresses that computers can understand.

• DNS also helps with email delivery by translating domain names into IP addresses for mail serv...read more

I prefer not to disclose my current CTC. As for expected salary, I am open to negotiation based on the job requirements and market standards.

• I am looking for a fair compensation based on my skills and experience

• I am open to negotiation based on the job requirements and market standards

• I prefer not to disclose my current CTC

EIGRP Authentication is a security feature that ensures only authorized routers can participate in EIGRP routing.

• EIGRP Authentication uses a shared secret key between routers to authenticate each other.

• It can be configured in two modes - MD5 authentication and SHA authentication.

• MD5 authentication is more commonly used and provides better security.

• SHA authentication is newer and provides stronger security.

• EIGRP Authent...read more

OSPF DR and BDR are routers elected to manage communication within a multi-access network.

• DR stands for Designated Router and BDR stands for Backup Designated Router.

• They are elected by OSPF routers on a multi-access network to manage communication.

• DR and BDR are responsible for maintaining the topology database and forwarding updates to other routers.

• They reduce the amount of OSPF traffic on the network by acting as a...read more

VLAN stands for Virtual Local Area Network. It is a logical grouping of devices on a network based on their function, project or application.

• VLANs allow network administrators to segment a network into smaller, more manageable groups.

• Devices in a VLAN can communicate with each other as if they were on the same physical network, even if they are physically located on different switches.

• VLANs can improve network security...read more