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Computer Science (First Exam 2027)

What Are the Basic Data Types in Programming (Boolean; Char; Integer; String; Decimal)?

Learn the five basic programming data types: Boolean, char, integer, string, and decimal, with examples and IB Computer Science exam guidance.

B2.1 Programming fundamentals

How Do You Extract and Manipulate a Substring in Code?

Learn how indexing, slicing, concatenation, and replacement extract and manipulate substrings in IB Computer Science B2.1 exam questions with accuracy.

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Every question IB students actually ask.

Computer Science (First Exam 2027)

What Are the Basic Data Types in Programming (Boolean; Char; Integer; String; Decimal)?

How Do You Extract and Manipulate a Substring in Code?

MYP Subjects

Computer Science (First Exam 2027)

What Are the Basic Data Types in Programming (Boolean; Char; Integer; String; Decimal)?

How Do You Extract and Manipulate a Substring in Code?

What Is Exception Handling and Why Does It Matter?

How Does try/catch (Java) or try/except (Python) Work?

What Is a Finally Block Used For?

What Debugging Techniques Exist (Breakpoints; Print Statements; Trace Tables)?

How Do You Use a Trace Table to Debug a Program?

What's the Difference Between a Static and Dynamic Data Structure?

How Do 1D and 2D Arrays Work?

What's the Difference Between an Array and an ArrayList/List?

How Do You Add, Remove, and Traverse Elements in a Dynamic List?

What Is a Stack (LIFO), and What Are Push, Pop, and Peek?

What Is a Queue (FIFO) and What Are Enqueue and Dequeue?

When Would You Use a Stack vs a Queue?

Why Does the Order of Instructions in a Program Matter?

How Do If/Else and Elif/Else If Selection Statements Work?

What Are Relational Operators (<; <=; >; >=; ==; !=) and Boolean Operators (AND; OR; NOT)?

What's the Difference Between a Counted Loop and a Conditional Loop?

What Causes an Infinite Loop and How Do You Avoid One?

What Is a Function and Why Use Functions in Programming?

What's the Difference Between Local and Global Scope?

What Are the Benefits of Modularizing Code?

What Is Big O Notation and How Do You Calculate It?

What's the Time Complexity of Linear Search vs Binary Search?