Pivotal Cloud Foundry (PCF) Certification Exam Review Questions Set 4 - Logging, Scaling and High Av
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How do you access application logs?
cf scale APP_NAME
cf logs APP_NAME
cf push APP_NAME
cf target APP_NAME
How are logs handled in a twelve-factor app?
As local disk files
As database entries
As application processes
As event streams
Which component of the Elastic runtime exposes an API for users to manage applications?
Which of the following is not one of four levels of high-availability provided by PCF?
CF converger detects and restarts application instances
BOSH detects and restarts failed processes
BOSH detects and recreates failed VMs
Application instances spread across different cells in different availability zones
Monit process restarts failed application instances
Which of the following are NOT one of the fundamental changes impacting cloud application design and delivery?
What is the difference between scaling up and scaling out?
Scale up requires no downtime. Scale out requires downtime.
Scale up does not recreates container. Scale out recreates container.
Scale up increase the number of instances. Scale out increase the disk space or memory limit of all instances of an application.
Scale up increases the disk space or memory limit of all instances of an application. Scale out increases the number of instances of an application.
What cf command can help you tell if your applications has been crashing?
What are the components of the Loggregator system?
Metron, doppler, traffic controller, firehose, nozzles
Cloud controller, doppler, traffic controller, firehose
Diego, metron, doppler, firehose, nozzles
Brain, metron, doppler, firehose, nozzles
Where should you write your application logs?
Standard out and standard error
Garden is an interface with many implementations, true or false?
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