Test your knowledge of Ruby localization including character encoding, Unicode handling, internationalization concepts, and date/time & number formatting.
What is the default character encoding for strings in Ruby 2.0 and later?
Which Unicode normalization form combines decomposed characters into their precomposed equivalents?
What's the difference between String#length and String#bytesize in Ruby?
Which method safely converts a string to UTF-8, replacing invalid characters?
Which strftime format code represents a 4-digit year?
In German locale, how would you typically format the number 1234.56?
Why might standard string sorting be inappropriate for international text?
Which languages typically use right-to-left (RTL) text direction?
How do you read a file with a specific encoding in Ruby?
Which approach is best for implementing pluralization in an international application?
When displaying times to users in different time zones, what should you do?
What is the most important principle when designing an internationalized application?
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