What is a key characteristic of a hash table?
A). Ordered elements
B). Key-value pairs
C). Fixed size
D). Single value elements
How do you parse a JSON string in JavaScript?
A). JSON.convert()
B). JSON.toObject()
C). JSON.parse()
D). JSON.stringify()
What is a queue data structure used for?
A). First In, First Out (FIFO)
B). Last In, First Out (LIFO)
C). Last In, Last Out (LILO)
D). First In, Last Out (FILO)
What is a multidimensional array?
A). An array with a single dimension
B). An array containing other arrays
C). An array with only string values
D). An array with a fixed size
What is the purpose of a JSON object?
A). To store a single value
B). To define a variable
C). To represent data as a string
D). To store data in a structured, key-value pair format
How do you create a set in Python?
A). set = {1, 2, 3}
B). set = (1, 2, 3)
C). set = [1, 2, 3]
D). set = <1, 2, 3>
How do you access the value of a key in a JavaScript object?
A). object(key)
B). object.key
C). object[key]
D). Both b and c
What is an object in programming?
A). A data structure with a fixed sequence of elements
B). A primitive data type
C). A data structure that stores key-value pairs
D). A single numerical value
Which method removes the last element from an array in JavaScript?
A). remove()
B). pop()
C). delete()
D). slice()
Which of the following is a feature of complex data types?
A). They can hold multiple values
B). They can be manipulated as a single entity
C). They can be composed of different data types
D). All of the above