Crucial Exams

ISC2 Certified Cloud Security Professional (CCSP) Practice Question

A company hosts a three-tier application (web, API, and database servers) on an IaaS public cloud. All virtual machines currently reside in one flat virtual network, and an edge firewall only filters north-south traffic. A recent audit requires the environment to follow a zero trust network model so that every east-west flow is explicitly authorized. Which redesign using the cloud provider's native controls BEST satisfies this requirement?

  • Consolidate all servers into a larger subnet and enable source NAT on the Internet gateway to hide internal addresses.

  • Place each tier in its own subnet and attach network security groups that whitelist only the required ports between specific workloads, with a default deny rule for all other intra-VNet traffic.

  • Add an intrusion detection sensor to the Internet-facing load balancer while leaving the existing flat network and security rules unchanged.

  • Deploy a next-generation firewall appliance at the virtual network edge and permit any traffic once packets pass through the appliance.

ISC2 Certified Cloud Security Professional (CCSP)
Cloud Concepts, Architecture and Design
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