LAN/WAN Support Specialist Interview Questions

What is subnetting, and why is it important?

Subnetting is the process of dividing a larger network into smaller, manageable sub-networks, helping to improve performance and security.

The OSI model is a conceptual framework used to understand the interactions of different networking systems. It has seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

What is a VPN, and how does it work?

A VPN (Virtual Private Network) creates a secure connection over the internet by encrypting the user's data and routing it through a remote server.

How do you secure a network?

Network security measures include using firewalls, implementing strong password policies, using VPNs, encrypting data, and regularly updating software to protect from vulnerabilities.