_VOIS L2 Network Engineer Interview Questions and Answers for Experienced

Routing is the process of selecting the best path for network traffic to reach its destination.

• Routing helps in directing network traffic efficiently

• It determines the best path for data packets to travel from source to destination

• Routing protocols like OSPF, BGP, and EIGRP are used to exchange routing information

• Routing tables are used to store information about network paths

• Dynamic routing adjusts to network changes a

IPS stands for Intrusion Prevention System. It is a network security technology that monitors network traffic to detect and prevent malicious activities.

• IPS is a network security technology that monitors network traffic in real-time.

• It can detect and prevent malicious activities such as hacking attempts, malware infections, and denial-of-service attacks.

• IPS works by analyzing network packets, comparing them to a databa...read more

Firewall works at the network layer.

• Firewall operates at the network layer of the OSI model.

• It filters and controls incoming and outgoing network traffic based on predetermined security rules.

• Examples of firewalls include hardware firewalls, software firewalls, and cloud-based firewalls.

Firewall generations refer to the evolution of firewall technology and their roles in network security.

• First generation firewalls - packet filtering based on IP addresses and ports

• Second generation firewalls - stateful inspection and improved security features

• Third generation firewalls - application layer filtering and deep packet inspection

• Fourth generation firewalls - next-generation firewalls with advanced threat pr...read more

IP Spoofing is a technique where an attacker impersonates another device by falsifying IP address in order to gain unauthorized access.

• IP Spoofing involves manipulating the source IP address in a packet to deceive the recipient.

• It is commonly used in DDoS attacks to hide the true source of the attack traffic.

• Prevention methods include implementing ingress and egress filtering on network devices.

• Examples of tools used f