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+
+* Explain the difference between a singleton and non-singleton type:
+
+A single type can only be used once per host. 
+
+(I don't see yet why this is important.)
+
+** Reference 
+   If a type is flagged as a singleton, it may be used only once per host. This is useful for types which can be used only once on a system. Singleton types do not take an object name as argument.
+   (https://www.cdi.st/manual/latest/cdist-type.html?highlight=singleton)
+
+
+
+* Explain the difference between the different verbosity levels
+
+Verbosity levels are used to change the amount of information that is output on stdout about the configuration run.
+I can be used for debugging, monitoring and scripting.
+
+
+** Reference
+
+# verbosity
+#     Set verbosity level. Valid values are: 
+#     ERROR, WARNING, INFO, VERBOSE, DEBUG, TRACE and OFF.
+
+(https://www.cdi.st/manual/latest/cdist-configuration.html?highlight=verbosity)
+
+
+
+* Logs (config run dumps per verbosity level)
+
+** No -v
+
+1lnu:/mnt/cephfs/infra/code.ungleich.ch/ungleich-learning-circle-balazs/balazs/dot-cdist$ cdist config -c . localhost
+
+No output
+
+** -v (INFO)
+
+1lnu:/mnt/cephfs/infra/code.ungleich.ch/ungleich-learning-circle-balazs/balazs/dot-cdist$ cdist config -c . -v localhost
+INFO: localhost: Starting configuration run
+INFO: localhost: Finished successful run in 7.95 seconds
+
+** -vv (VERBOSE)
+
+1lnu:/mnt/cephfs/infra/code.ungleich.ch/ungleich-learning-circle-balazs/balazs/dot-cdist$ cdist config -c . -vv localhost
+VERBOSE: cdist: version 6.5.4-32-g250161e4
+INFO: localhost: Starting configuration run
+VERBOSE: localhost: Running global explorers
+VERBOSE: localhost: Running initial manifest /tmp/tmpec8j3nyk/421aa90e079fa326b6494f812ad13e79/data/conf/manifest/init
+VERBOSE: localhost: Preparing object __my_computer/
+
+...
+
+VERBOSE: localhost: Running object __package/zsh
+VERBOSE: localhost: Running object __package/sipcalc
+VERBOSE: localhost: Running object __package/emacs
+VERBOSE: localhost: Running object __package/tzdata
+VERBOSE: localhost: Running object __package/nmap
+VERBOSE: localhost: Preparing object __link/etc/localtime
+VERBOSE: localhost: Running manifest and explorers for __link/etc/localtime
+VERBOSE: localhost: Running type explorers for <CdistType __link>
+VERBOSE: localhost: Running object __link/etc/localtime
+VERBOSE: localhost: Running object __my_computer/
+VERBOSE: localhost: Running object __timezone/Europe/Zurich
+INFO: localhost: Finished successful run in 7.58 seconds
+VERBOSE: config: Total processing time for 1 host(s): 7.591623544692993