Which of the following statements is false?

a. A dictionary associates keys with values. Each key maps to a specific value.
b. A dictionary’s keys must be mutable (such as strings, numbers or tuples) and unique (that is, no duplicates).
c. Multiple keys can have the same value, such as two different inventory codes that have the same quantity in stock.
d. All of the above are true.


b. A dictionary’s keys must be mutable (such as strings, numbers or tuples) and unique (that is, no duplicates).

Computer Science & Information Technology

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_________ enables customers to combine basic computing services, such as number crunching and data storage, to build highly adaptable computer systems.

A. IaaS B. EAP peer C. CP D. SaaS

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The __________ construct can be used to split an array into a number of values.

a. while() b. list() c. foreach() d. each()

Computer Science & Information Technology

Which is incorrect about reality, data, and metadata?

A) Within the realm of reality, there are entities and attributes. B) There are record occurrences within the realm of actual data. C) Within the realm of metadata, there are record definitions and data item definitions. D) There are data item occurrences within the realm of files.

Computer Science & Information Technology