Quiz 20C: Explain Datacenter Network Architecture

What are the primary features of a datacenter network architecture?

• Provisioning server resources, hosting network services, and storing SANs

• Providing network services, hosting client PCs, and managing network security

• Hosting client PCs, managing physical access control, and implementing virtualization

• Provisioning server resources, managing network services, and implementing SDN

What characterizes traffic flows within a datacenter?

• North-south traffic primarily involves communication between servers within the datacenter.

• East-west traffic represents communication between clients outside the datacenter and servers.

• North-south traffic involves clients outside the datacenter, while east-west traffic involves servers within.

• East-west traffic involves clients outside the datacenter, while north-south traffic involves servers within.

How are overlay networks utilized in datacenters?

• To simplify security design by directing all traffic through a firewall.

• To establish logical links between servers within the datacenter.

• To implement zero trust architectures between clients and servers.

• To provide physical access control features for managing datacenter environments.

What is the primary function of an SDN controller in a software-defined networking architecture?

• To manage physical access control features within the datacenter.

• To automate the provisioning and deprovisioning of server instances.

• To apply microsegmentation and zero trust security policies.

• To orchestrate connections to networks and clouds enrolled in the SD-WAN.

What topology is commonly used to support east-west traffic within datacenters?

• Star topology
• Ring topology

• Spine and leaf topology

• Bus topology

How does MPLS contribute to enterprise networking requirements?

• By providing public Internet links for VPN connections.

• By offering private links with guaranteed service levels.

• By establishing point-to-point links between clients and servers.

• By creating secure connections between branch offices and the cloud.

What is a key advantage of using a spine and leaf topology in datacenter networks?

• Predictable network latency

• Limited redundancy paths

• Requirement for spanning tree protocol

• Direct connections between spine switches

What role does GRE play in branch office datacenter access?

• It encapsulates data for tunneling over transport networks.

• It manages physical access control to server equipment.

• It implements microsegmentation for zero trust architectures.

• It establishes point-to-point links between spine and leaf switches.

How does colocation differ from traditional on-premises datacenters?

• Colocation involves shared datacenter environments, while on-premises are dedicated to a single company.

• Colocation provides site redundancy, while on-premises datacenters do not.

• Colocation offers better performance for remote office access compared to on-premises datacenters.

• Colocation does not require physical access control features like on-premises datacenters.

What is a primary objective of SD-WAN implementation?

• To replace MPLS services with public Internet connections

• To provision dynamic links based on application requirements