Podcast
Questions and Answers
What is the purpose of having two failure domains in a system?
What is the purpose of having two failure domains in a system?
- To limit the blast radius of system changes (correct)
- To enhance incident response mechanisms
- To provide A/B regression capabilities
- To back up data in case of failure
How can geographically separated failure domains benefit a system?
How can geographically separated failure domains benefit a system?
- They enhance emergency phone number lookup
- They provide isolation for natural disasters (correct)
- They reduce data corruption risks
- They allow for testing different software versions
What is the purpose of a breakglass mechanism in system operations?
What is the purpose of a breakglass mechanism in system operations?
- To limit the number of ACL entries
- To increase the blast radius of system changes
- To enhance global network failure management
- To bypass policies during outages for quick resolution (correct)
Why should systems using ACLs fail closed?
Why should systems using ACLs fail closed?
How does combining data and functional isolation enhance system resilience?
How does combining data and functional isolation enhance system resilience?
What can lead to system overload according to the text?
What can lead to system overload according to the text?
How can a storage shortage potentially lead to system failure?
How can a storage shortage potentially lead to system failure?
What does the text suggest should be planned in advance to prevent system breakdown?
What does the text suggest should be planned in advance to prevent system breakdown?
How can a system protect itself from collapsing chaotically during dire circumstances?
How can a system protect itself from collapsing chaotically during dire circumstances?
What is the benefit of deliberately designing multiple response options for system failures?
What is the benefit of deliberately designing multiple response options for system failures?
What is the main purpose of creating failure domains in a system?
What is the main purpose of creating failure domains in a system?
How do failure domains differ from managing role, location, and time separations?
How do failure domains differ from managing role, location, and time separations?
What is the effect of failure domains on system resilience?
What is the effect of failure domains on system resilience?
Why is it important to mitigate failures of critical components in a system?
Why is it important to mitigate failures of critical components in a system?
Which approach is recommended to reduce the probability of a single root cause affecting elements in multiple failure domains?
Which approach is recommended to reduce the probability of a single root cause affecting elements in multiple failure domains?
What is the purpose of periodically refreshing the phone number list from the remote service?
What is the purpose of periodically refreshing the phone number list from the remote service?
Why might a hidden landline with dialing capabilities be utilized as a backup to a disabled wireless connection?
Why might a hidden landline with dialing capabilities be utilized as a backup to a disabled wireless connection?
Why is building an alternative network that avoids reusing components from the main network considered essential?
Why is building an alternative network that avoids reusing components from the main network considered essential?
What is the primary goal behind limiting available features and bandwidth in the alternative network mentioned?
What is the primary goal behind limiting available features and bandwidth in the alternative network mentioned?
Why are large networks more susceptible to global outages compared to smaller networks?
Why are large networks more susceptible to global outages compared to smaller networks?
