| 1. | About data types.
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| 2. | If you don't give a variable a value, what will Perl assign to it?
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| 3. | What are "funny symbols"?
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| 4. | What data types are interpreted within double quotes?
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| 5. | How many numbers or strings can you store in a scalar variable?
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| 6. | What is the nickname for "associative array"?
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| 7. | In a hash, can you have more than one key with the same name? More than one value with the same name?
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| 8. | What is a list?
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| 9. | How do you find the size of an array?
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| 10. | Why are elements of an array or hash are preceded by a $?
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| 11. | What is the difference between chop and chomp?
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| 12. | How do you read just 25 bytes keyboard input into a variable?
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| 13. | What is the difference between splice and slice?
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| 14. | How do you sort a numeric array? Hash by value?
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| 15. | What function extracts both keys and values from a hash?
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| 16. | Can you have more than one key with the same name?
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| 17. | What is the %SIG hash used for?
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| 18. | What are environment variables?
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| 19. | What is meant by the term scope?
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