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 logs APP_NAME
cf target APP_NAME
cf push APP_NAME
cf scale APP_NAME
What cf command can help you tell if your applications has been crashing?
Which of the following is not one of four levels of high-availability provided by PCF?
BOSH detects and restarts failed processes
Monit process restarts failed application instances
BOSH detects and recreates failed VMs
Application instances spread across different cells in different availability zones
CF converger detects and restarts application instances
Garden is an interface with many implementations, true or false?
How are logs handled in a twelve-factor app?
As event streams
As database entries
As local disk files
As application processes
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 does not recreates container. Scale out recreates container.
Scale up requires no downtime. Scale out requires downtime.
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.
Where should you write your application logs?
Standard out and standard error
Which component of the Elastic runtime exposes an API for users to manage applications?
What are the components of the Loggregator system?
Cloud controller, doppler, traffic controller, firehose
Brain, metron, doppler, firehose, nozzles
Metron, doppler, traffic controller, firehose, nozzles
Diego, metron, doppler, firehose, nozzles
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