Compute Choices
A customer needs an isolated server environment but does not need exclusive use of the entire physical machine. Which of OCI Compute's two primary instance types is the more direct fit?
What is a virtual machine (VM)?
IAn application is short of memory. The team increases RAM on its existing VM but does not add another VM. What kind of scaling did it perform?
What is vertical scaling?
A developer has packaged an expense-processing service and its PDF library for repeatable deployment. Before anything is started, what is that stored package called?
What is a container image?
This is the smallest deployable unit managed by Kubernetes and may hold one or more containers.
What is a pod?
A receipt-processing task only needs to execute when a receipt arrives. Oracle manages the execution infrastructure rather than the customer maintaining an always-running VM. What execution model is being used?
What is serverless, event-driven function execution (using Oracle Functions)?
This OCI feature lets customers choose supported OCPU and memory combinations rather than only fixed sizes.
What are flexible shapes?
Adding or removing copies of instances to meet demand is this type of scaling.
What is horizontal scaling?
This software launches and manages running containers
What is a container runtime?
An application needs three running copies of a service. After one pod fails, an orchestration system works to restore the configured number. What core Kubernetes idea is illustrated?
What is maintaining (reconciling) the desired state?
This describes software execution initiated by a trigger such as an OCI event.
What is event-driven execution?
This option reserves a physical host for a customer to run their own VMs.
What is a dedicated VM host?
This OCI resource acts as a reusable template for creating similar instances.
What is an instance configuration?
Compared with VMs, containers generally share this part of the host operating system
What is the OS kernel?
This is a machine that provides capacity for pods in a Kubernetes cluster.
What is a worker node?
This OCI location stores the container image used to deploy an Oracle Function.
What is OCI Registry?
A lower-cost instance type that may be reclaimed and is best for interruption-tolerant jobs.
What is a preemptible instance?
This OCI resource groups instances so they can be managed together and used for autoscaling.
What is an instance pool?
This OCI service runs container images without requiring customers to manage VMs or Kubernetes.
What are OCI Container Instances?
This part of OKE, managed by Oracle, coordinates scheduling and cluster state
This part of OKE, managed by Oracle, coordinates scheduling and cluster state
This browser-accessible Linux environment includes a pre-authenticated OCI CLI.
What is OCI Cloud Shell?
A VM connects to a subnet through this virtualized network interface, which receives a private IP.
What is a VNIC?
This capability can relocate a supported VM during host maintenance without rebooting the guest.
What is live migration?
This is why a containerized application can be moved between compatible environments more predictably than an unpackaged application.
What is packaging the application with its dependencies?
This OKE node option provides a more hands-off, serverless experience and is supported in enhanced clusters.
What are virtual nodes?
This secure remote-login protocol uses a public key on the server and a corresponding private key held by the user.
What is SSH?