Cloud Introduction Flashcards
What are cloud Characteristics?
- On-demand Self-service
- Broad Network Access
- Resource Pooling
- Rapid Elasticity
- Measured Service
What are 5 benefits of cloud computing?
- Reduce up-front IT investments
- On-demand, short term access to IT resources
- Perception of unlimited IT resources
- Add/Remove IT resources at a fine-grained level
- Elasticity
- Increased availability
- Increased reliability
What are the risks of Cloud computing?
- Lack of control of IT resources
- You are responsible for security, integrity, and storage of own data
- Can be difficult to move
- Large distances can decrease performance
What is a Datacentre?
A datacentre is a container of IT resources such as clusters, hosts, VMs and folders
What are clusters?
A cluster is a group of hosts that share IT resources, and a management interface. A host’s resources are included within the cluster’s resources.
What are Hosts, Hypervisors?
A host is a computer running virtualisation software (hypervisor such as ESXi) to manage multiple VMs
What is a Datastore?
A datastore is a logical container of VM files and other files for operating VMs
What is a POD?
A POD is a set of building blocks of hardware and software to support a particular role.
What are the 3 cloud plateform services
IAAS, SAAS, PAAS
