12 Questions
What does resiliency refer to in a system?
Ability to quickly recover from failures
Which term describes the ability of a system to continue operating without interruption during hardware or software failures?
Fault tolerance
What does reliability of a system entail?
Delivering expected performance levels
Which term refers to the automatic creation of virtual machines?
Service orchistration
What is the purpose of resource pooling in softwarelisation?
Shared CPU network
What does SLA stand for in the context of system operations?
Service Level Agreement
Fault tolerance is the ability of a system to recover quickly from failures.
False
Reliability refers to a system that delivers expected performance levels and meets user requirements without frequent failures.
True
Resiliency is the automatic creation of virtual machines.
False
Softwarelisation involves resource pooling.
True
Virtualization involves shared CPU network.
True
Orchestration involves resolving single point of failure problems.
False
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.
Test your knowledge on system resiliency, fault tolerance, and reliability. Learn about the ability of a system to recover quickly from failures, continue operating during disruptions, and deliver expected performance levels without frequent errors.
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