Wipro Interview Questions and Answers

Stateless firewall filters packets based solely on the information in the packet header, while stateful firewall keeps track of the state of active connections.

• Stateless firewall operates at the network layer and filters packets based on IP addresses and ports

• Stateful firewall operates at the session layer and keeps track of the state of active connections

• Stateful firewall can make decisions based on the context of the traffic, such as whether a packet is part of an establish...read more

STP stands for Spanning Tree Protocol, which is used to prevent loops in a network by creating a loop-free logical topology.

• STP is a network protocol that ensures a loop-free topology in Ethernet networks.

• Types of STP include IEEE 802.1D (STP), IEEE 802.1w (Rapid STP), and IEEE 802.1s (Multiple STP).

• STP works by electing a root bridge and blocking redundant paths to prevent loops.

• STP convergence time can be improved with Rapid STP and Multiple STP variants.

OSPF (Open Shortest Path First) is a routing protocol used to find the best path for data packets in a network.

• OSPF is a link-state routing protocol

• It uses Dijkstra's algorithm to calculate the shortest path

• OSPF routers exchange link-state advertisements (LSAs) to build a topology map of the network

• It supports VLSM (Variable Length Subnet Masking) and CIDR (Classless Inter-Domain Routing)

• OSPF is widely used in large enterprise networks and ISPs

BGP (Border Gateway Protocol) is a standardized exterior gateway protocol used to exchange routing information between different autonomous systems on the internet.

• BGP is used to make routing decisions based on network policies, rules, and attributes.

• It is a path vector protocol that allows routers to share information about the best path to reach a certain destination.

• BGP operates on TCP port 179 and uses TCP connections to exchange routing information.

• BGP is commonly used b...read more

VLAN stands for Virtual Local Area Network, used to segment network traffic for security and performance purposes.

• VLANs divide a physical network into multiple logical networks, allowing for better control over traffic flow.

• Each VLAN operates as if it is its own separate network, even though devices may physically be connected to the same network switch.

• VLANs can improve network security by isolating sensitive data or systems from other parts of the network.

• VLANs can also imp...read more

To manage a project and team effectively, a project manager must have strong leadership skills, clear communication, and the ability to prioritize tasks and delegate responsibilities.

• Establish clear goals and objectives for the project

• Create a detailed project plan with defined tasks, timelines, and resources

• Assign roles and responsibilities to team members based on their skills and expertise

• Communicate regularly with the team to provide updates, address concerns, and ensure ...read more