Network Engineer Interview Preparation (Part - 5)

Welcome back, everyone! Today, we are excited to kick off a new journey focused on preparing for network engineer interviews. This will be a complete series designed to help our subscribers, featuring 100 articles. This is the 5th article in the series. To stay updated and receive notifications for future posts, be sure to subscribe!

41. What is VLAN tagging?

VLAN tagging is the process of adding additional information, such as a VLAN ID, to network frames. It allows switches to identify and handle frames belonging to different VLANs.

42. What is a network protocol?

A network protocol is a set of rules and conventions that govern how data is transmitted, received, and processed in a network. It ensures consistent and reliable communication between devices.

43. What is the purpose of a network proxy?

A network proxy acts as an intermediary between clients and servers, intercepting requests and responses to provide additional functionality, such as caching, filtering, or security services.

44. What is a DHCP relay agent?

A DHCP relay agent is a device that forwards DHCP messages between clients and DHCP servers in different network segments, allowing clients to obtain IP addresses and configuration information from DHCP servers located elsewhere.

45. What is the purpose of a network bridge?

A network bridge connects two or more network segments together at the data link layer, allowing devices in different segments to communicate as if they were on the same network.

46. What is a loopback address?

A loopback address is a special IP address, usually 127.0.0.1 that represents the local host or the device itself. It is commonly used for testing network connectivity on the local machine.

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47. What is a network anomaly?

A network anomaly is any deviation from the expected or normal behavior in a network. It may indicate a security breach, performance issue, or other network problems.

48. What is the purpose of ARP poisoning?

ARP poisoning, also known as ARP spoofing, is a network attack where an attacker falsifies ARP messages to associate their MAC address with the IP address of another device. This allows the attacker to intercept or modify network traffic.

49. What is a network switch fabric?

A network switch fabric is the internal architecture or design of a switch that determines how data is forwarded between ports and processed within the switch.

50. What is the purpose of a network load balancer?

A network load balancer distributes incoming network traffic across multiple servers or resources to ensure efficient utilization, high availability, and scalability.

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