Factors to Consider When Evaluating a Firewall for Datacenter's East-West Traffic

A.

When evaluating a firewall to protect a datacenter's east-west traffic, the following factors should be considered:

B. Traffic between VMs running on different hosts: This is the correct answer as protecting east-west traffic in a datacenter is primarily concerned with securing traffic between virtual machines (VMs) running on different hosts within the datacenter. A firewall should be able to effectively monitor and filter traffic between VMs, and ensure that only authorized traffic is allowed to pass.

A. Replication traffic between an on-premises server and a remote backup facility: This factor is not directly related to east-west traffic within the datacenter, but rather deals with traffic between a local server and a remote backup facility. However, it is still an important consideration when evaluating a firewall for a datacenter, as replication traffic may traverse the datacenter's firewall.

C. Concurrent connections generated by Internet DDoS attacks: While DDoS attacks can be a significant threat to a datacenter, they primarily affect north-south traffic (i.e. traffic entering and leaving the datacenter), rather than east-west traffic. Nevertheless, a firewall should still be capable of detecting and mitigating DDoS attacks that may affect the datacenter.

D. VPN traffic from remote offices to the datacenter's VMs: While VPN traffic is an important consideration when evaluating a firewall for a datacenter, it is not directly related to east-west traffic within the datacenter. VPN traffic is typically considered north-south traffic, as it is traffic that is entering and leaving the datacenter.

In summary, the most important factor to consider when evaluating a firewall to protect a datacenter's east-west traffic is the ability of the firewall to effectively monitor and filter traffic between VMs running on different hosts within the datacenter.