GCSE Data Structures and Arrays

What is a data structure in programming?

• A conceptual arrangement of data

• A specific type of variable

• A mathematical equation

• A programming language

What is the purpose of different data structures in programming?

• To slow down the program

• To confuse programmers

• To optimize operations for specific purposes

• To increase the size of the program

What is the main data structure discussed in the text?

• Graph

• Array

• Linked list

• Matrix

What is the characteristic of an array?

• It can only store strings

• It is ordered and has a fixed length

• It can contain elements of different data types

• It has a variable length

What is the index of the first position in an array?

• 3

• 1

• 0

• 2

What is the purpose of closing a file after use?

• To corrupt the file

• To slow down the program

• To prevent resources from being used

• To increase the buffer size

What is the purpose of flushing the buffer when closing a file?

• To increase the buffer size

• To prevent data loss

• To corrupt the file

• To slow down the program

What is the difference between an array and a record?

• An array is two-dimensional, while a record is one-dimensional

• An array is homogeneous, while a record can have different data types

• An array is used for text files, while a record is used for binary files

• An array is used for numbers, while a record is used for strings

What is another name for a row in a database?

• Field

• Record

• Column

• Table

What type of data can be stored in a record?

• Only dates

• Different data types

• Only strings

• Only numbers