F2.4 Future Directions

Question 1

Explain scalability and elasiticity

Answer 1

Scalability depends on how components scale
Elasticity is to accurately predict demand under resource allocations

Question 2

Explain some points of Resource management and scaling techniques

Answer 2

Autoscaling techniques: Dynamically scale resources based on current load and forecasted workloads

Resource throttling methods: To handle workload bursts

Admission control methods: To handle peak loads and prioritize workloads of high-value customer

Service orchestrations: To compose and orchestrate workloads for target domains. It makes decisions based on cost-awareness

Multi-cloud-tenancy: Spread the load of an application across multiple CDCs

Question 3

Explain some points of Reliability

Answer 3

Failures triggered by environmental change
Cloud computing is service-oriented rather than resource-oriented. Reliability models for Distributed systems cannot be applied to Cloud computing

Question 4

Explain some points of Sustainability

Answer 4

Energy consumption of servers

Question 5

Explain some points of heterogenetiy

Answer 5

First at VM level, then at vendor level
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