IT 104 Special Prelim Exam

How do you access a value in a two-dimensional matrix?

• Two indexes

• Single index

• Index and key

• Using parentheses

What is the purpose of the null value in linked lists?

• Represents an empty list

• Points to the first node

• Denotes the end of the list

• Indicates a circular list

What is the topmost node in a tree called?

• Leaf

• Parent

• Child

• Root

What is a pointer in programming?

• A variable that always has the value of 0

• A variable used in strings

• An index in an array

• A special variable that points to a location in memory

What is the official term for adding data to a stack in programming?

• Enqueue

• Dequeue

• Push

• Pop

How is array access denoted in programming?

• Parentheses

• Curly braces

• Angle brackets

• Square brackets

What data structure is used to store characters in programming languages?

• Vectors

• Strings

• Arrays

• Matrices

What is the purpose of the null character in strings?

• Represents the character zero

• Marks the beginning of a string

• Indicates an empty string

• Denotes the end of the string in memory

In most programming languages, at which index does an array start?

• 1

• 0

• -1

• 10

What is a struct in programming?

• A data structure with two dimensions

• An array of characters

• A compound data structure bundling related variables

• A type of matrix