Podcast
Questions and Answers
What does resiliency refer to in a system?
What does resiliency refer to in a system?
- Creating virtual machines
- Ability to prevent all failures
- Ability to quickly recover from failures (correct)
- Inability to function properly after failures
Which term describes the ability of a system to continue operating without interruption during hardware or software failures?
Which term describes the ability of a system to continue operating without interruption during hardware or software failures?
- Service orchistration
- Reliability
- Fault tolerance (correct)
- Resiliency
What does reliability of a system entail?
What does reliability of a system entail?
- Inability to meet user requirements
- Frequent failures and malfunctions
- Automatic creation of virtual machines
- Delivering expected performance levels (correct)
Which term refers to the automatic creation of virtual machines?
Which term refers to the automatic creation of virtual machines?
What is the purpose of resource pooling in softwarelisation?
What is the purpose of resource pooling in softwarelisation?
What does SLA stand for in the context of system operations?
What does SLA stand for in the context of system operations?
Fault tolerance is the ability of a system to recover quickly from failures.
Fault tolerance is the ability of a system to recover quickly from failures.
Reliability refers to a system that delivers expected performance levels and meets user requirements without frequent failures.
Reliability refers to a system that delivers expected performance levels and meets user requirements without frequent failures.
Resiliency is the automatic creation of virtual machines.
Resiliency is the automatic creation of virtual machines.
Softwarelisation involves resource pooling.
Softwarelisation involves resource pooling.
Virtualization involves shared CPU network.
Virtualization involves shared CPU network.
Orchestration involves resolving single point of failure problems.
Orchestration involves resolving single point of failure problems.
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Study Notes
System Characteristics
- Resiliency refers to the ability of a system to recover quickly and efficiently from failures or disruptions and continue functioning properly.
- Fault tolerance is the ability of a system to continue operating without interruption in the event of hardware or software failures.
- A reliable system is one that operates correctly, delivers expected performance levels, and meets user requirements without experiencing frequent failures, errors, or malfunctions.
Service Orchestration and Virtualization
- Service orchestration involves automatic creation of virtual machines.
- Softwarelisation is the process of resource pooling.
- Virtualization involves sharing CPU and network resources.
Physique and Redundancy
- Physique is used to resolve single point of failure problems.
- Redundancy is achieved through the rule of 3-2-1-0, which involves:
- 3 copies of data
- 2 support systems
- 1 offset (external support)
- 1 online system with 0 warnings
Service Level Agreement (SLA)
- SLA is a service level agreement that outlines the expected performance and service quality of a system.
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