Data Structures and Abstract Data Types

Question 1

What is a data structure?

Answer 1

The concept of storing multiple values together with a single identifier

Question 2

What is the purpose of an index in an array?

Answer 2

Gives a value a position on an array

Question 3

Why is it advantageous to use an array of integers over multiple variables of for each integer

Answer 3

can use a loop to step through an array, meaning
fewer lines of code
If the number of values to be
stored changes, don’t need to change the code

Question 4

What is a record?

Answer 4

A collection of related data?

Question 5

What are some advantages and disadvantages of using a binary file?

Answer 5

+File size smaller
+Contents more secure
-File cannot be accessed by another program

Question 6

What separates individual values in a csv file?

Answer 6

A comma

Question 7

Which is correct: A field is made up of records or a record is made up of fields?

Answer 7

A record is made up of fields