SDN: Network Architectures

What is the primary purpose of the core in a three-tier network architecture?

• To connect directly to the users

• To manage traffic and provide redundancy

• To house major services like web and database servers

• To support external communications only

What role does the distribution layer play in a three-tier architecture?

• It manages communication between users and the core

• It only supports internal network traffic

• It provides physical security for network devices

• It connects users directly to the internet

Which layer of the three-tier architecture typically contains servers like web and database servers?

• Distribution layer

• Core layer

• External layer

• Access layer

In a three-tier architecture, what is the function of access switches?

• To connect users to the network

• To manage network security and protocols

• To provide a direct connection to the internet

• To store data and provide backup services

How does the distribution layer contribute to network redundancy?

• By managing external network connections

• By storing backup data across multiple servers

• By linking multiple access switches to multiple distribution switches

• By connecting all users directly to the core

How does SDN differ from traditional networking in terms of component separation?

• SDN uses physical switches only

• SDN separates network functions into data, control, and management planes

• SDN combines all network functions into a single layer

• SDN does not allow for virtualization of network functions

What does SDN stand for?

• Secure Data Networking

• Switched Dynamic Network

• Software-Defined Networking

• Systematic Data Network

In the context of SDN, what does the control plane do?

• It provides user interface management

• It manages routing tables and other network functions

• It handles the forwarding of data packets

• It manages the physical infrastructure of the network

What is the primary purpose of the management plane in SDN?

• To manage the overall network security

• To connect physical network components

• To forward data packets between devices

• To allow administrators to manage network operations

What is the primary benefit of using spine switches in a spine and leaf architecture?

• They determine the traffic flow between leaf switches

• They manage all the security needs of the network

• They connect directly to the internet

• They provide power management for the network