What classes allow you to cache the mapping from a class to its containing file?
Answer
ApcClassLoader
AppClassLoader
XDebugClassLoader
XcacheClassLoader
Question 3
Question
How can you instantiate an ApcClassLoader?
Answer
new ApcClassLoader($loader, sha1(__FILE__));
new ApcClassLoader($loader);
new ApcClassLoader(sha1(__FILE__), $loader);
new ApcClassLoader('../app/cache', $loader);
Question 4
Question
Two class loaders can co-exist in the application?
Answer
True
False
Question 5
Question
How many classes does the class loader component have?
Answer
Less than 10
About 20
More than 40
Question 6
Question
you can define a new file loader in Symfony, if the new loader class :
Answer
is registered in yml as a service with the config.file_loader tag
is registered with the DelagatingLoader
implements the LoaderInterface
extends the abstract FileLoader class
Question 7
Question
You should merge all your configuration files into one and use it as cache.
Answer
True
False
Question 8
Question
What class in the Config Component helps you manage and check if the generate cache file containing all the configuration is valid and if not regenerate it?
Answer
CacheConfig
ConfigurationCache
ConfigLoaderCache
ConfigCache
Question 9
Question
In the context of a TreeBuilder, which of the following are valid node types?
Answer
string
scalar
array
enum
serviceId
integer
boolean
float
parameter
variable
Question 10
Question
Which of the following are valid ways to define a scalar node type? (to replace .... below)
$treeBuilder
->children()
.....
->end();