40081928
Descrição
Quiz por Eladio Rocha, atualizado more than 1 year ago
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Criado por Eladio Rocha
aproximadamente 1 ano atrás
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Questão 1
Questão
Where are servers typically provisioned for large-scale systems?
Responda
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In personal computers owned by the company
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In shared office spaces
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In company-owned data centers or cloud service providers
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On physical tape storage
Questão 2
Questão
What is a key advantage of cloud services like AWS for server provisioning?
Responda
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Physical access to the servers
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Unlimited free server time
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On-demand server provisioning and cost control
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Elimination of all potential server downtime
Questão 3
Questão
What is a major downside of a cold standby backup system?
Responda
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High cost of server maintenance
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Requires a replicated live database
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Significant downtime and potential data loss
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Complexity of implementation
Questão 4
Questão
Why might a cold standby system still be used despite its limitations?
Responda
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It provides seamless failover capabilities
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It is suitable for critical production systems
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It is a cost-effective and simple solution for non-critical systems
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It eliminates the need for backups
Questão 5
Questão
What is the primary difference between a warm standby and a cold standby system?
Responda
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Warm standby uses simultaneous writes to all hosts
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Warm standby relies on live replication instead of periodic backups
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Cold standby offers faster recovery times
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Warm standby requires manual intervention to activate
Questão 6
Questão
What is one potential drawback of using a warm standby system?
Responda
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High probability of data loss
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Increased load on the backup database
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Lack of replication options in modern databases
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Long downtime during failover
Questão 7
Questão
What is the key characteristic of a hot standby system?
Responda
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Writes are replicated periodically
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It relies on cold backups for recovery
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Data is written simultaneously to all database hosts
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It eliminates the need for read scaling
Questão 8
Questão
How does a hot standby system support horizontal scaling?
Responda
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By distributing write operations among multiple servers
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By enabling simultaneous read operations across database hosts
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By relying on a single database host with backups
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By using a replication mechanism to synchronize data
Questão 9
Questão
What is the main advantage of serverless services like AWS Lambda?
Responda
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Complete elimination of downtime
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Direct control over physical servers
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Abstraction of server provisioning and billing based on usage
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Reduced costs due to fixed pricing models
Questão 10
Questão
Which scenario best fits a serverless architecture?
Responda
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Running long-term, stateful applications
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Handling unpredictable, short-lived workloads
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Managing a large database with replication
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Provisioning dedicated servers for high-traffic websites
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