As - Data Structures Quiz

What is a data structure?

• A specific method of processing data efficiently.

• A type of function in programming.

• A collection of data processing applications.

• A programming language.

What does an array contain?

• A collection of different data types.

• A single element of data.

• Groups of elements of the same data type.

• A collection of files.

How are records different from arrays?

• Records are a type of array.

• Records contain only one data type.

• Records are composed of fields, each containing one item of information about the same subject.

• Records cannot contain strings.

Which of the following is NOT a data type listed in the image?

• Integer

• Real

• Character

• Object

What is the element at index [4] in the one-dimensional array example?

• 37

• 26

• 56

• 76

What is the element at index [2,2] in the two-dimensional array example?

• Fred

• Davies

• Evans

• Pamela

What does the code snippet under "Traversing" do?

• It searches for a specific element in the array.

• It deletes an element from the array.

• It prints the contents of the array.

• It reverses the elements in the array.

How do you add data to an element at index 4 of an array named 'myArray'?

• myArray[4] = "Sian"

• myArray.add(4, "Sian")

• myArray.insert(4, "Sian")

• myArray[4] += "Sian"

What happens when you perform the deletion operation
myArray[4,1] = ""'

myArray[4,2] = ""'

?

• It deletes the entire array.

• It leaves the memory at index 4 blank.

• It searches for an empty string in the array.

• It concatenates two array elements.

What is the purpose of using an array to search data?

• To sort the data in the array.

• To search for a data item from a list and read into an array.

• To delete data from the array.

• To print all elements of the array.