Administrator L2 Interview Questions and Answers

MAC address is a hardware address assigned to network devices, while IP address is a logical address used for communication.

• MAC address is a unique identifier assigned to network interfaces for communication at the data link layer.

• IP address is a logical address assigned to devices for communication at the network layer.

• MAC address is fixed and tied to the hardware, while IP address can be dynamic and assigned by a network administrator.

• Example: MAC address - 00:1A:2B:3C:4D:5...read more

DNS is a system that translates domain names to IP addresses, allowing users to access websites using human-readable names.

• DNS stands for Domain Name System

• It translates domain names (e.g. www.google.com) to IP addresses (e.g. 172.217.3.206)

• DNS servers store records like A (IPv4 address), AAAA (IPv6 address), CNAME (canonical name), MX (mail exchange), etc.

• DNS resolution process involves recursive and iterative queries