CompTIA Cloud+ (CV0-004) — All Questions

A company wants to run a workload where the cloud provider manages the operating system and runtime, but the company still writes and deploys its own application code. Which service model best fits this requirement?

• a.Infrastructure as a Service (IaaS)
• b.Platform as a Service (PaaS)✓
• c.Software as a Service (SaaS)
• d.Bare-metal hosting

PaaS gives developers a managed platform, including the operating system, runtime, and middleware, so they only supply and deploy application code. IaaS would leave the OS to the customer, and SaaS delivers a finished application with no custom code to deploy.

Which characteristic most directly describes elasticity in a cloud environment?

• a.The provider guarantees zero downtime for all services
• b.Data is replicated to at least three geographic regions
• c.Resources automatically expand and contract to match changing demand✓
• d.Billing is a fixed monthly amount regardless of usage

Elasticity is the automatic scaling of resources up or down to match real-time demand, which keeps performance steady while controlling cost. It is distinct from high availability (uptime) and from fixed billing, and it does not require multi-region replication.

An organization keeps sensitive workloads on infrastructure it owns while bursting less-sensitive workloads to a public cloud during peak periods. Which deployment model is this?

• a.Hybrid cloud✓
• b.Community cloud
• c.Public cloud
• d.Private cloud

A hybrid cloud combines private (owned) infrastructure with public cloud, often to keep sensitive data in-house while using public capacity for elastic bursting. A community cloud is shared by organizations with common concerns, and public or private alone would not describe the combination.

In the shared responsibility model for an IaaS deployment, which task is typically the customer's responsibility rather than the provider's?

• a.Maintaining the physical security of the data center
• b.Replacing failed hardware in the host servers
• c.Managing the hypervisor that runs customer VMs
• d.Patching the guest operating system on the customer's VMs✓

Under IaaS, the provider secures the physical facility, hardware, and virtualization layer, while the customer manages everything from the guest OS upward, including OS patching. Confusing these boundaries is a common source of misconfiguration and risk.

A design calls for storing large volumes of unstructured media files that are accessed over HTTP with metadata but rarely modified in place. Which storage type is the best fit?

• a.Block storage
• b.Object storage✓
• c.File storage
• d.Local ephemeral disk

Object storage is ideal for large, unstructured data such as media, storing each item with metadata and a unique identifier accessible over HTTP. Block storage suits databases and boot volumes, and file storage suits shared file systems; neither is optimized for massive web-accessible object retrieval.