Eladio Rocha
Quiz por , criado aproximadamente 1 mês atrás

Learn about server provisioning, backup strategies, and scaling techniques, including cold, warm, and hot standby systems. Explore cloud services, serverless computing, and horizontal scaling for resilient, efficient system design.

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Eladio Rocha
Criado por Eladio Rocha aproximadamente 1 mês atrás
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Scalable Systems and Database Redundancy

Questão 1 de 10

1

Where are servers typically provisioned for large-scale systems?

Selecione uma das seguintes:

  • In personal computers owned by the company

  • In shared office spaces

  • In company-owned data centers or cloud service providers

  • On physical tape storage

Explicação

Questão 2 de 10

1

What is a key advantage of cloud services like AWS for server provisioning?

Selecione uma das seguintes:

  • Physical access to the servers

  • Unlimited free server time

  • On-demand server provisioning and cost control

  • Elimination of all potential server downtime

Explicação

Questão 3 de 10

1

What is a major downside of a cold standby backup system?

Selecione uma das seguintes:

  • High cost of server maintenance

  • Requires a replicated live database

  • Significant downtime and potential data loss

  • Complexity of implementation

Explicação

Questão 4 de 10

1

Why might a cold standby system still be used despite its limitations?

Selecione uma das seguintes:

  • It provides seamless failover capabilities

  • It is suitable for critical production systems

  • It is a cost-effective and simple solution for non-critical systems

  • It eliminates the need for backups

Explicação

Questão 5 de 10

1

What is the primary difference between a warm standby and a cold standby system?

Selecione uma das seguintes:

  • Warm standby uses simultaneous writes to all hosts

  • Warm standby relies on live replication instead of periodic backups

  • Cold standby offers faster recovery times

  • Warm standby requires manual intervention to activate

Explicação

Questão 6 de 10

1

What is one potential drawback of using a warm standby system?

Selecione uma das seguintes:

  • High probability of data loss

  • Increased load on the backup database

  • Lack of replication options in modern databases

  • Long downtime during failover

Explicação

Questão 7 de 10

1

What is the key characteristic of a hot standby system?

Selecione uma das seguintes:

  • Writes are replicated periodically

  • It relies on cold backups for recovery

  • Data is written simultaneously to all database hosts

  • It eliminates the need for read scaling

Explicação

Questão 8 de 10

1

How does a hot standby system support horizontal scaling?

Selecione uma das seguintes:

  • By distributing write operations among multiple servers

  • By enabling simultaneous read operations across database hosts

  • By relying on a single database host with backups

  • By using a replication mechanism to synchronize data

Explicação

Questão 9 de 10

1

What is the main advantage of serverless services like AWS Lambda?

Selecione uma das seguintes:

  • Complete elimination of downtime

  • Direct control over physical servers

  • Abstraction of server provisioning and billing based on usage

  • Reduced costs due to fixed pricing models

Explicação

Questão 10 de 10

1

Which scenario best fits a serverless architecture?

Selecione uma das seguintes:

  • Running long-term, stateful applications

  • Handling unpredictable, short-lived workloads

  • Managing a large database with replication

  • Provisioning dedicated servers for high-traffic websites

Explicação

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