Explain the concept of subnetting in IP addressing. How does subnetting contribute to efficient network management?

At which OSI layer do routers primarily operate, and what is their role in network communication?

Explain how a router functions within the OSI model. What layer does it primarily operate in, and how does it facilitate the routing of data between different networks?

Explain the concept of MPLS (Multiprotocol Label Switching) and its role in WAN traffic routing and prioritization.

Is it possible for two network interfaces to have the same MAC address? Is there a specific rationale or justification for this phenomenon? Is it feasible to allocate a single IP address to be utilized by two distinct network interfaces? Is there a specific rationale or justification for this phenomenon?

Explain the operation of BGP (Border Gateway Protocol) in internet routing. What are the key challenges and security considerations associated with BGP?

Describe the concept of subnet masks and their significance in IP addressing. How do subnet masks affect device network connections?

Describe the concept of "subnetting" in IP addressing and how it allows for efficient IP address allocation in networks.

Explain the importance of MAC addresses in Layer 2 communications within the OSI model, and how switches use MAC address tables for packet forwarding.

Describe the role and advantages of "Supernetting" or "CIDR" in IP addressing.