Refer to the exhibit. What does the hyphen symbol (-) indicate in the YAML data structure?

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Refer to the exhibit. What does the hyphen symbol (-) indicate in the YAML data structure?

a key/value pair that represents an IP address
a string being used for both the key and value
a single key/value pair
an element in an array

Explanation: In YAML syntax, key value pairs are separated by a colon without the use of quotation marks and a hyphen is used to separate each element in a list or an array.

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