Pivotal Cloud Foundry (PCF) Certification Exam Review Questions Set 4 - Logging, Scaling and High Av
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Garden is an interface with many implementations, true or false?
What are the components of the Loggregator system?
Diego, metron, doppler, firehose, nozzles
Metron, doppler, traffic controller, firehose, nozzles
Cloud controller, doppler, traffic controller, firehose
Brain, metron, doppler, firehose, nozzles
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 recreates failed VMs
Application instances spread across different cells in different availability zones
BOSH detects and restarts failed processes
Monit process restarts failed application instances
CF converger detects and restarts application instances
How are logs handled in a twelve-factor app?
As application processes
As local disk files
As database entries
As event streams
Which component of the Elastic runtime exposes an API for users to manage applications?
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.
Which of the following are NOT one of the fundamental changes impacting cloud application design and delivery?
How do you access application logs?
cf target APP_NAME
cf scale APP_NAME
cf push APP_NAME
cf logs APP_NAME
Where should you write your application logs?
Standard out and standard error
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