Cloud Computing Fundamentals Flashcards

In cloud networking, what is a Virtual Private Cloud (VPC)?

Answer: An isolated virtual network within a public cloud provider's infrastructure

A VPC is a logically isolated virtual network within a public cloud provider that allows customers to define their own IP address ranges, subnets, and routing rules.

What is 'cloud bursting' in a hybrid cloud architecture?

Answer: Automatically scaling overflow workloads from private to public cloud during peak demand

Cloud bursting allows an application running in a private cloud to automatically scale into public cloud resources when on-premises capacity is insufficient to handle peak demand.

Which cloud computing concept ensures that cloud resources are shared among multiple customers while keeping each customer's data logically separated?

Answer: Multi-tenancy

Multi-tenancy allows multiple customers (tenants) to share the same physical infrastructure while their data and applications remain logically isolated from one another.

A cloud administrator needs to define and manage infrastructure using configuration files rather than manual processes. What practice does this describe?

Answer: Infrastructure as Code (IaC)

Infrastructure as Code (IaC) involves managing and provisioning cloud infrastructure through machine-readable configuration files, enabling automation, consistency, and version control.

Which Service Level Agreement (SLA) metric describes the percentage of time a cloud service is operational and accessible?

Answer: Uptime/Availability percentage

Cloud SLAs define availability as the percentage of time the service is operational, commonly expressed as '99.9% uptime,' meaning no more than ~8.76 hours of downtime per year.

What is the primary purpose of a Content Delivery Network (CDN) in cloud architecture?

Answer: To distribute content closer to end users via geographically dispersed edge servers

A CDN caches and serves content from edge servers located geographically close to users, reducing latency and improving load times for web content and media.

Which cloud migration strategy involves moving an application to the cloud without making any changes to the application itself?

Answer: Rehosting (lift and shift)

Rehosting (also called lift and shift) moves an application to the cloud as-is without modifying the application code or architecture, offering the fastest migration path.