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Nominal number - Quiz
Nominal number
  • 1. What type of number is primarily used to identify specific entities without conveying other information?
A) Prime number
B) Ordinal number
C) Nominal number
D) Cardinal number
  • 2. Which of the following is listed as an example of a national identification number?
A) Page number
B) Social Security number
C) Serial key
D) Mathematical constant
  • 3. How are bank codes and sort codes classified in the text?
A) Routing numbers
B) Postal codes
C) Car model numbers
D) Telephone numbers
  • 4. What is an example of a routing number mentioned in the text?
A) IP address
B) BMW model number
C) ZIP code
D) ABA routing transit numbers
  • 5. Are postal codes always numeric globally?
A) Yes, they are always strictly numeric
B) Yes, they follow a universal numeric standard
C) No, they only use Roman numerals
D) No, other nations often use alphanumeric systems
  • 6. What is the hierarchical structure of a North American telephone number?
A) Country Code + Prefix + Suffix + Area Code
B) Country Code + Area Code + Prefix + Suffix
C) Prefix + Suffix + Area Code + Country Code
D) Area Code + Country Code + Suffix + Prefix
  • 7. What kind of numbers are assigned sequentially?
A) ZIP codes
B) IP addresses
C) Serial numbers
D) Bank codes
  • 8. How does the text classify numbers assigned sequentially?
A) Nominal numbers
B) Ordinal numbers
C) Cardinal numbers
D) Rational numbers
  • 9. Which car manufacturers are mentioned as using plain numbers for model names?
A) Honda or Nissan
B) Ford or Toyota
C) BMW or Peugeot
D) Tesla or Volvo
  • 10. What is the defining characteristic of a narrowly defined nominal number?
A) It follows a strict sequential order
B) It conveys geographical information
C) It conveys no information other than identity
D) It indicates a specific physical measurement
  • 11. What is a common source of narrowly defined nominal numbers in computer applications?
A) Hardware serial numbers
B) Encryption keys
C) User passwords
D) Dynamic IP addresses
  • 12. Which protocol assigns dynamic IP addresses?
A) Internet Message Access Protocol
B) Hypertext Transfer Protocol
C) Dynamic Host Configuration Protocol
D) File Transfer Protocol
  • 13. What are considered 'everyday' examples of narrowly defined nominal numbers?
A) Driver's license numbers
B) ZIP codes
C) Sports squad numbers
D) Train route numbers
  • 14. What happens when a club 'retires' a number?
A) The number is used for a new player immediately
B) The number is changed to a different format
C) The number is no longer issued to new players
D) The number is sold to the public
  • 15. In the mathematical context of bijections, what does it mean for a mapping to be injective?
A) Every entity has a single numeral
B) Numerals can be shared by multiple entities
C) Different entities have different unique numerals
D) Every numeral corresponds to an entity
  • 16. Why is adding or subtracting ZIP codes considered meaningless?
A) Subtraction is mathematically impossible for ZIP codes
B) The resulting value does not serve as a valid identifier
C) The numbers are too large to calculate
D) ZIP codes cannot be converted to integers
  • 17. In the mapping of nominal numbers, what does 'surjective' imply?
A) Each entity has a null amount of numerals
B) Entities and numerals change over time
C) Every numeral in the set describes an entity
D) Multiple entities share the same numeral
  • 18. What does the word 'nominal' mean in its original sense?
A) Name
B) Sequence
C) Quantity
D) Measurement
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