Eladio Rocha
Test por , creado hace alrededor de 1 mes

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
Creado por Eladio Rocha hace alrededor de 1 mes
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Scalable Systems and Database Redundancy

Scalable Systems and Database Redundancy

Pregunta 1 de 10

1

Where are servers typically provisioned for large-scale systems?

Selecciona una de las siguientes respuestas posibles:

  • In personal computers owned by the company

  • In shared office spaces

  • In company-owned data centers or cloud service providers

  • On physical tape storage

Explicación

Pregunta 2 de 10

1

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

Selecciona una de las siguientes respuestas posibles:

  • Physical access to the servers

  • Unlimited free server time

  • On-demand server provisioning and cost control

  • Elimination of all potential server downtime

Explicación

Pregunta 3 de 10

1

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

Selecciona una de las siguientes respuestas posibles:

  • High cost of server maintenance

  • Requires a replicated live database

  • Significant downtime and potential data loss

  • Complexity of implementation

Explicación

Pregunta 4 de 10

1

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

Selecciona una de las siguientes respuestas posibles:

  • 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

Explicación

Pregunta 5 de 10

1

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

Selecciona una de las siguientes respuestas posibles:

  • 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

Explicación

Pregunta 6 de 10

1

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

Selecciona una de las siguientes respuestas posibles:

  • High probability of data loss

  • Increased load on the backup database

  • Lack of replication options in modern databases

  • Long downtime during failover

Explicación

Pregunta 7 de 10

1

What is the key characteristic of a hot standby system?

Selecciona una de las siguientes respuestas posibles:

  • 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

Explicación

Pregunta 8 de 10

1

How does a hot standby system support horizontal scaling?

Selecciona una de las siguientes respuestas posibles:

  • 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

Explicación

Pregunta 9 de 10

1

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

Selecciona una de las siguientes respuestas posibles:

  • 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

Explicación

Pregunta 10 de 10

1

Which scenario best fits a serverless architecture?

Selecciona una de las siguientes respuestas posibles:

  • Running long-term, stateful applications

  • Handling unpredictable, short-lived workloads

  • Managing a large database with replication

  • Provisioning dedicated servers for high-traffic websites

Explicación

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