Eladio Rocha
Quiz von , erstellt am vor etwa ein Monat

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
Erstellt von Eladio Rocha vor etwa ein Monat
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Scalable Systems and Database Redundancy

Scalable Systems and Database Redundancy

Frage 1 von 10

1

Where are servers typically provisioned for large-scale systems?

Wähle eine der folgenden:

  • In personal computers owned by the company

  • In shared office spaces

  • In company-owned data centers or cloud service providers

  • On physical tape storage

Erklärung

Frage 2 von 10

1

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

Wähle eine der folgenden:

  • Physical access to the servers

  • Unlimited free server time

  • On-demand server provisioning and cost control

  • Elimination of all potential server downtime

Erklärung

Frage 3 von 10

1

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

Wähle eine der folgenden:

  • High cost of server maintenance

  • Requires a replicated live database

  • Significant downtime and potential data loss

  • Complexity of implementation

Erklärung

Frage 4 von 10

1

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

Wähle eine der folgenden:

  • 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

Erklärung

Frage 5 von 10

1

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

Wähle eine der folgenden:

  • 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

Erklärung

Frage 6 von 10

1

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

Wähle eine der folgenden:

  • High probability of data loss

  • Increased load on the backup database

  • Lack of replication options in modern databases

  • Long downtime during failover

Erklärung

Frage 7 von 10

1

What is the key characteristic of a hot standby system?

Wähle eine der folgenden:

  • 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

Erklärung

Frage 8 von 10

1

How does a hot standby system support horizontal scaling?

Wähle eine der folgenden:

  • 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

Erklärung

Frage 9 von 10

1

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

Wähle eine der folgenden:

  • 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

Erklärung

Frage 10 von 10

1

Which scenario best fits a serverless architecture?

Wähle eine der folgenden:

  • Running long-term, stateful applications

  • Handling unpredictable, short-lived workloads

  • Managing a large database with replication

  • Provisioning dedicated servers for high-traffic websites

Erklärung

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