Eladio Rocha
Quiz by , created about 1 month ago

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
Created by Eladio Rocha about 1 month ago
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Scalable Systems and Database Redundancy

Question 1 of 10

1

Where are servers typically provisioned for large-scale systems?

Select one of the following:

  • In personal computers owned by the company

  • In shared office spaces

  • In company-owned data centers or cloud service providers

  • On physical tape storage

Explanation

Question 2 of 10

1

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

Select one of the following:

  • Physical access to the servers

  • Unlimited free server time

  • On-demand server provisioning and cost control

  • Elimination of all potential server downtime

Explanation

Question 3 of 10

1

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

Select one of the following:

  • High cost of server maintenance

  • Requires a replicated live database

  • Significant downtime and potential data loss

  • Complexity of implementation

Explanation

Question 4 of 10

1

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

Select one of the following:

  • 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

Explanation

Question 5 of 10

1

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

Select one of the following:

  • 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

Explanation

Question 6 of 10

1

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

Select one of the following:

  • High probability of data loss

  • Increased load on the backup database

  • Lack of replication options in modern databases

  • Long downtime during failover

Explanation

Question 7 of 10

1

What is the key characteristic of a hot standby system?

Select one of the following:

  • 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

Explanation

Question 8 of 10

1

How does a hot standby system support horizontal scaling?

Select one of the following:

  • 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

Explanation

Question 9 of 10

1

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

Select one of the following:

  • 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

Explanation

Question 10 of 10

1

Which scenario best fits a serverless architecture?

Select one of the following:

  • Running long-term, stateful applications

  • Handling unpredictable, short-lived workloads

  • Managing a large database with replication

  • Provisioning dedicated servers for high-traffic websites

Explanation

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